# ADD

> STM, ADI, TI, Xilinx, Altera. BOM sourcing, PCBA, 1G–800G optics. Since 2000. Hong Kong electronic components & optical transceiver distributor.

ADD Components Co., Limited was founded in Hong Kong to bridge a critical gap in the electronics supply chain. Industrial OEMs in Eastern Europe and Central Asia need fast, reliable access to high-end semiconductors and optical modules — without the risk of counterfeits or the delays of fragmented sourcing.  
Keywords: electronic components distributor Hong Kong, optical transceiver supplier, BOM procurement service, PCBA assembly, STM32 distributor, ADI distributor, TI distributor, Xilinx FPGA distributor, compatible SFP transceiver, QSFP28 module, global component sourcing  
Address: FLAT/RM C-13/F Harvard Commercial Building 105-111 Thomson Road, Wan Chai, HK  
Email: info@addcomponents.hk

- [Homepage](https://www.addcomponents.hk): ADD official website

## About us

- [About us](https://www.addcomponents.hk/about-us.html): ADD Components Co., Limited — Hong Kong electronic components distributor with 20+ years experience. STM, ADI, TI, Xilinx sourcing, optical transceivers, turnkey PCBA. Global delivery.


## Electronic Components

- [Electronic Components](https://www.addcomponents.hk/products.html): Electronic components by brand (STM, ADI, TI, Xilinx, Altera, Microchip) and application (UAV, industrial, medical, data center). Authorized sourcing, anti-counterfeit verified, global delivery.

- [BY APPLICATION](https://www.addcomponents.hk/products/by-application.html): Electronic components organized by application: UAV, industrial automation, data center, automotive, medical, aerospace, energy, telecom 5G. Find parts for your industry.
- [BY BRAND](https://www.addcomponents.hk/products/by-brand.html): Electronic components by manufacturer: STMicroelectronics, Analog Devices, Texas Instruments, Xilinx, Altera, Microchip. Series-level part numbers, specs, and procurement information.

## PCBA SERVICES

- [PCBA SERVICES](https://www.addcomponents.hk/pcba.html): Turnkey PCBA services: BOM procurement, SMT, through-hole, BGA, mixed-technology assembly, AOI & X-ray inspection, functional testing and box build. IPC Class 2 & 3. One purchase order.

- [Functional Testing & Box Build](https://www.addcomponents.hk/pcba/functional-test-box-build.html): Custom functional test, ICT, flying probe, burn-in testing, and turnkey box build assembly. Full system integration, firmware loading, cable harness assembly.
- [AOI & X-Ray Inspection](https://www.addcomponents.hk/pcba/aoi-x-ray-inspection.html): Automated optical inspection and 3D X-ray for PCB assemblies. BGA void detection, solder joint verification to IPC-A-610 standards, in-line AOI, SPI.
- [Incoming QC & Anti-Counterfeit](https://www.addcomponents.hk/pcba/incoming-qc-anti-counterfeit.html): Component-level incoming QC and anti-counterfeit inspection for PCB assembly. Microscopic, X-ray, and electrical verification of every reel, tray, and tube.
- [BGA & Fine-Pitch Placement](https://www.addcomponents.hk/pcba/bga-fine-pitch-placement.html): Precision BGA and fine-pitch placement services with X-ray verification and IPC-7095 void detection. 0.4mm pitch BGA, uBGA, and large-body BGA up to 55x55mm assembly capability.
- [Mixed Technology Assembly](https://www.addcomponents.hk/pcba/mixed-technology-assembly.html): Mixed technology PCB assembly combining SMT and through-hole processes in a single production flow. Dual reflow-wave process, IPC-A-610 Class 2 and 3 compliance.
- [Through-Hole Assembly](https://www.addcomponents.hk/pcba/through-hole-assembly.html): Professional through-hole PCB assembly services with wave soldering, selective soldering, and manual precision techniques. IPC-A-610 Class 2 and 3 compliant.
- [SMT Assembly](https://www.addcomponents.hk/pcba/smt-assembly.html): High-speed SMT assembly with 3D SPI, 35K+ CPH placement, 10-zone reflow. 0201 to large-package capability. J-STD-020 compliant profiling. Get PCBA quote within 24h.
- [PCB Fabrication](https://www.addcomponents.hk/pcba/pcb-fabrication.html): Professional PCB fabrication from 2-68 layers. FR-4, Rogers, aluminum, flex & rigid-flex substrates. Impedance control, heavy copper up to 12oz. Quick-turn available.
- [BOM Sourcing & Procurement](https://www.addcomponents.hk/pcba/bom-sourcing-procurement.html): Global electronic component sourcing & BOM procurement with 3000+ supplier channels. Anti-counterfeit verified, 48-hour cross-reference. Submit BOM for quote.

## Optical Transceivers

- [Optical Transceivers](https://www.addcomponents.hk/optical-transceivers.html): Optical transceivers 1G to 800G: SFP, SFP+, SFP28, QSFP28, QSFP-DD, CFP2, OSFP. 100% compatibility tested, pre-coded for Cisco, Juniper, Arista, HPE. In-stock, global shipping.

- [SFP+ Transceivers | 10G Enterprise, Data Center Access, Storage SAN](https://www.addcomponents.hk/optical-transceivers/sfp-plus.html): Complete SFP+ 10G optical transceiver guide covering all variants: SR (850 nm MMF, 300 m OM3/400 m OM4), LR (1310 nm SMF, 10 km), ER (1550 nm, 40 km), ZR (80 km), LRM for legacy MMF, 8G/16G Fibre Chan
- [OSFP Transceivers | 800G Ethernet, AI Data Centers, HPC Interconnect](https://www.addcomponents.hk/optical-transceivers/osfp.html): Complete OSFP 800G transceiver portfolio: SR8 (100m MMF), DR8 (500m SMF), DR8+ (2km), 2×FR4 (2km dual CS), LR8 (10km CWDM8), and coherent OSFP. Preferred form factor for AI/ML clusters due to 15W ther
- [QSFP28 Transceivers | Data Center Spine-Leaf, Metro Networks, 5G Midhaul](https://www.addcomponents.hk/optical-transceivers/qsfp28.html): Complete guide to QSFP28 optical transceivers: 100G SR4, BiDi, PSM4, CWDM4, LR4, ER4, and AOC variants. Full spec comparison table, reach options from 100 m to 40 km. Trusted by cloud data centers wor
- [QSFP56 Transceivers | 200G Data Center, 5G Backhaul](https://www.addcomponents.hk/optical-transceivers/qsfp56.html): Everything you need to know about QSFP56 200G transceivers: SR4, DR4, FR4, and LR4 variants with specification comparison table. PAM4 modulation, QSFP28 backward compatibility, and optimal use cases f
- [QSFP-DD Transceivers | Hyperscale Data Centers, Cloud, AI/ML Clusters](https://www.addcomponents.hk/optical-transceivers/qsfp-dd.html): Complete QSFP-DD 400G transceiver reference covering SR8, DR4, FR4, and LR4 variants. Specification comparison table, PAM4 signaling, FEC requirements, and backward compatibility with QSFP28. Ideal fo
- [SFP Transceivers | Enterprise Access, Industrial Ethernet, Telecom Access](https://www.addcomponents.hk/optical-transceivers/sfp.html): Complete SFP optical transceiver guide covering all variants: SX (850 nm MMF), LX (1310 nm SMF 10 km), EX (40 km), ZX (80 km), BiDi single-fiber, CWDM, and DWDM. Speeds from 100 Mbps to 2.5G CPRI. Ind
- [SFP28 Transceivers | Data Center Server Interconnect, 5G Fronthaul](https://www.addcomponents.hk/optical-transceivers/sfp28.html): Complete SFP28 25G optical transceiver guide covering all variants: SR (850 nm MMF, 70 m OM3/100 m OM4), LR (1310 nm SMF, 10 km), eLR (25 km), ER (40 km), BiDi single-fiber, and 25G CPRI/eCPRI for 5G 
- [SFP-DD Transceivers | High-Density Server Interconnect, Next-Gen Access](https://www.addcomponents.hk/optical-transceivers/sfp-dd.html): SFP-DD (Double Density) transceiver portfolio: 25G fallback, 50G SR/LR (2×25G NRZ), and 100G SR/LR (2×50G PAM4). Physically backward compatible with SFP+/SFP28 cages. Twice the faceplate density of QS
- [CFP2 Transceivers | Telecom Long-Haul, Metro Aggregation, Coherent DWDM](https://www.addcomponents.hk/optical-transceivers/cfp2.html): Complete CFP2 transceiver portfolio: 100GBASE-LR4 (10km), 100GBASE-ER4 (40km), 200G LR4, and CFP2-DCO coherent optics (100G DP-QPSK, 200G DP-16QAM) for metro DWDM and DCI. Only pluggable form factor s

## Applications

- [Applications](https://www.addcomponents.hk/applications.html): Electronic components organized by application: UAV, industrial automation, data center, automotive, medical, aerospace, energy. Find the right parts for your industry — beyond brand search.

- [Data Center](https://www.addcomponents.hk/data-center.html): Data center electronic components and optical transceivers: FPGAs, DDR5 memory, PCIe switches, 100G-400G optics. Server, storage, networking — verified sourcing, global delivery.
- [Authorized & Multi-Channel Sourcing](https://www.addcomponents.hk/data-center/authorized-multi-channel-sourcing.html): Authorized & Multi-Channel Sourcing
- [Long-Term Supply & Fixed-Price Agreements](https://www.addcomponents.hk/data-center/5-7-day-global-delivery-2.html): Long-Term Supply & Fixed-Price Agreements
- [Cross-Brand BOM Consolidation](https://www.addcomponents.hk/data-center/rigorous-quality-control-2.html): Cross-Brand BOM Consolidation
- [EOL & Lead-Time Early Warning](https://www.addcomponents.hk/data-center/eol-lead-time-early-warning.html): EOL & Lead-Time Early Warning
- [Cross-Brand Alternative Sourcing](https://www.addcomponents.hk/data-center/engineering-support-2.html): Cross-Brand Alternative Sourcing
- [In-Stock Breadth & High-Turn Lines](https://www.addcomponents.hk/data-center/buffer-stock-programs-2.html): In-Stock Breadth & High-Turn Lines
- [Telecom & 5G](https://www.addcomponents.hk/telecom-5g.html): Telecom and 5G electronic components: RF front-end, GaN power amps, FPGAs, timing ICs, 25G/100G optical transceivers for fronthaul and backhaul. Carrier-grade verified sourcing.
- [Authorized & Multi-Channel Sourcing](https://www.addcomponents.hk/telecom-5g/multi-source-procurement-3.html): Authorized & Multi-Channel Sourcing
- [Cross-Brand BOM Consolidation](https://www.addcomponents.hk/telecom-5g/5-7-day-global-delivery-3.html): Cross-Brand BOM Consolidation
- [EOL & Lead-Time Early Warning](https://www.addcomponents.hk/telecom-5g/rigorous-quality-control-3.html): EOL & Lead-Time Early Warning
- [Long-Term Supply & Fixed-Price Agreements](https://www.addcomponents.hk/telecom-5g/one-bom-one-supplier-3.html): Long-Term Supply & Fixed-Price Agreements
- [Cross-Brand Alternative Sourcing](https://www.addcomponents.hk/telecom-5g/engineering-support-3.html): Cross-Brand Alternative Sourcing
- [In-Stock Breadth & High-Turn Lines](https://www.addcomponents.hk/telecom-5g/buffer-stock-programs-3.html): In-Stock Breadth & High-Turn Lines
- [Automotive](https://www.addcomponents.hk/automotive.html): AEC-Q100 automotive electronic components: MCUs, CAN/LIN transceivers, power management, LED drivers, sensors. NXP S32, STM SPC5, TI automotive — verified sourcing, global delivery.
- [Authorized & Multi-Channel Sourcing](https://www.addcomponents.hk/automotive/multi-source-procurement-4.html): Authorized & Multi-Channel Sourcing
- [In-Stock Breadth & High-Turn Lines](https://www.addcomponents.hk/automotive/5-7-day-global-delivery-4.html): In-Stock Breadth & High-Turn Lines
- [Cross-Brand Alternative Sourcing](https://www.addcomponents.hk/automotive/rigorous-quality-control-4.html): Cross-Brand Alternative Sourcing
- [EOL & Lead-Time Early Warning](https://www.addcomponents.hk/automotive/one-bom-one-supplier-4.html): EOL & Lead-Time Early Warning
- [Cross-Brand BOM Consolidation](https://www.addcomponents.hk/automotive/engineering-support-4.html): Cross-Brand BOM Consolidation
- [Long-Term Supply & Fixed-Price Agreements](https://www.addcomponents.hk/automotive/buffer-stock-programs-4.html): Long-Term Supply & Fixed-Price Agreements
- [Medical](https://www.addcomponents.hk/medical.html): Medical device electronic components: precision analog, low-power MCUs, reinforced isolators, MEMS sensors, high-resolution ADCs. High-reliability sourcing with full batch traceability.
- [Authorized & Multi-Channel Sourcing](https://www.addcomponents.hk/medical/multi-source-procurement-5.html): Authorized & Multi-Channel Sourcing
- [In-Stock Breadth & High-Turn Lines](https://www.addcomponents.hk/medical/5-7-day-global-delivery-5.html): In-Stock Breadth & High-Turn Lines
- [Cross-Brand Alternative Sourcing](https://www.addcomponents.hk/medical/rigorous-quality-control-5.html): Cross-Brand Alternative Sourcing
- [EOL & Lead-Time Early Warning](https://www.addcomponents.hk/medical/one-bom-one-supplier-5.html): EOL & Lead-Time Early Warning
- [Cross-Brand BOM Consolidation](https://www.addcomponents.hk/medical/engineering-support-5.html): Cross-Brand BOM Consolidation
- [Long-Term Supply & Fixed-Price Agreements](https://www.addcomponents.hk/medical/buffer-stock-programs-5.html): Long-Term Supply & Fixed-Price Agreements
- [Industrial Automation](https://www.addcomponents.hk/industrial-automation.html): Industrial automation electronic components: PLC processors, motor drivers, isolation ICs, Ethernet PHY, RS-485/CAN transceivers, IGBTs. Extended temperature — verified sourcing.
- [Authorized & Multi-Channel Sourcing](https://www.addcomponents.hk/industrial-automation/multi-source-procurement-6.html): Authorized & Multi-Channel Sourcing
- [In-Stock Breadth & High-Turn Lines](https://www.addcomponents.hk/industrial-automation/5-7-day-global-delivery-6.html): In-Stock Breadth & High-Turn Lines
- [Cross-Brand Alternative Sourcing](https://www.addcomponents.hk/industrial-automation/rigorous-quality-control-6.html): Cross-Brand Alternative Sourcing
- [EOL & Lead-Time Early Warning](https://www.addcomponents.hk/industrial-automation/one-bom-one-supplier-6.html): EOL & Lead-Time Early Warning
- [Cross-Brand BOM Consolidation](https://www.addcomponents.hk/industrial-automation/engineering-support-6.html): Cross-Brand BOM Consolidation
- [Long-Term Supply & Fixed-Price Agreements](https://www.addcomponents.hk/industrial-automation/buffer-stock-programs-6.html): Long-Term Supply & Fixed-Price Agreements
- [Aerospace & Defense](https://www.addcomponents.hk/aerospace-defense.html): Aerospace and defense electronic components: radiation-tolerant FPGAs, high-reliability MCUs, RF power, hermetic passives, mil-spec connectors. Anti-counterfeit verified sourcing.
- [In-Stock Breadth & High-Turn Lines](https://www.addcomponents.hk/aerospace-defense/buffer-stock-programs.html): In-Stock Breadth & High-Turn Lines
- [Cross-Brand Alternative Sourcing](https://www.addcomponents.hk/aerospace-defense/engineering-support.html): Cross-Brand Alternative Sourcing
- [EOL & Lead-Time Early Warning](https://www.addcomponents.hk/aerospace-defense/one-bom-one-supplier.html): EOL & Lead-Time Early Warning
- [Cross-Brand BOM Consolidation](https://www.addcomponents.hk/aerospace-defense/rigorous-quality-control.html): Cross-Brand BOM Consolidation
- [Long-Term Supply & Fixed-Price Agreements](https://www.addcomponents.hk/aerospace-defense/5-7-day-global-delivery.html): Long-Term Supply & Fixed-Price Agreements
- [Authorized & Multi-Channel Sourcing](https://www.addcomponents.hk/aerospace-defense/multi-source-procurement.html): Authorized & Multi-Channel Sourcing
- [Energy & Power](https://www.addcomponents.hk/energy-power.html): Energy and power electronic components: IGBTs, SiC MOSFETs, gate drivers, power modules, current sensors, DC-DC converters. Solar, EV charging, motor drives — verified sourcing.
- [Authorized & Multi-Channel Sourcing](https://www.addcomponents.hk/energy-power/multi-source-procurement-7.html): Authorized & Multi-Channel Sourcing
- [In-Stock Breadth & High-Turn Lines](https://www.addcomponents.hk/energy-power/5-7-day-global-delivery-7.html): In-Stock Breadth & High-Turn Lines
- [Cross-Brand Alternative Sourcing](https://www.addcomponents.hk/energy-power/rigorous-quality-control-7.html): Cross-Brand Alternative Sourcing
- [EOL & Lead-Time Early Warning](https://www.addcomponents.hk/energy-power/one-bom-one-supplier-7.html): EOL & Lead-Time Early Warning
- [Cross-Brand BOM Consolidation](https://www.addcomponents.hk/energy-power/engineering-support-7.html): Cross-Brand BOM Consolidation
- [Long-Term Supply & Fixed-Price Agreements](https://www.addcomponents.hk/energy-power/buffer-stock-programs-7.html): Long-Term Supply & Fixed-Price Agreements
- [UAV & Robotics](https://www.addcomponents.hk/uav-robotics.html): UAV and robotics electronic components: flight controller MCUs, ESC MOSFETs, IMU sensors, GPS modules, motor drivers, RF transceivers. STM32, GD32 — verified sourcing, global delivery.
- [Authorized & Multi-Channel Sourcing](https://www.addcomponents.hk/uav-robotics/multi-source-procurement-8.html): Authorized & Multi-Channel Sourcing
- [In-Stock Breadth & High-Turn Lines](https://www.addcomponents.hk/uav-robotics/5-7-day-global-delivery-8.html): In-Stock Breadth & High-Turn Lines
- [Cross-Brand Alternative Sourcing](https://www.addcomponents.hk/uav-robotics/rigorous-quality-control-8.html): Cross-Brand Alternative Sourcing
- [EOL & Lead-Time Early Warning](https://www.addcomponents.hk/uav-robotics/one-bom-one-supplier-8.html): EOL & Lead-Time Early Warning
- [Cross-Brand BOM Consolidation](https://www.addcomponents.hk/uav-robotics/engineering-support-8.html): Cross-Brand BOM Consolidation
- [Long-Term Supply & Fixed-Price Agreements](https://www.addcomponents.hk/uav-robotics/buffer-stock-programs-8.html): Long-Term Supply & Fixed-Price Agreements

## Blog

- [Blog](https://www.addcomponents.hk/blog.html): Electronic components & optical transceiver blog: sourcing guides, PCBA insights, semiconductor market trends. Technical guides, industry news, and company updates from ADD Components Hong Kong.

- [Latest Inventory](https://www.addcomponents.hk/latest-inventory.html): Latest inventory arrivals: newly stocked electronic components, optical transceivers 1G-800G, allocated part availability. Regular updates from ADD Components Hong Kong distributor.
- [Industry News](https://www.addcomponents.hk/industry-news.html): Semiconductor and optical transceiver industry news: supply chain allocation, FPGA shortages, DDR5 trends, optical module market forecasts. Market intelligence for procurement teams.
- [Semiconductor Allocation 2026: How to Keep Your Production Lines Moving](https://www.addcomponents.hk/industry-news/semiconductor-allocation-2026-how-to-keep-your-production-lines-moving.html): Semiconductor Allocation 2026: How to Keep Your Production Lines MovingJune 18, 2026If your procurement team has heard the word "allocation" more times this quarter than you'd like, you're not alone. 
- [400G Optical Transceiver Market Accelerates: QSFP-DD Demand Surges in Data Centers](https://www.addcomponents.hk/industry-news/400g-optical-transceiver-market-accelerates-qsfp-dd-demand-surges-in-data-2.html): 400G Optical Transceiver Market Accelerates: QSFP-DD Demand Surges in Data CentersJune 5, 2026The optical transceiver market is undergoing its fastest generational transition since the shift from 10G 
- [400G Optical Transceiver Market Accelerates: QSFP-DD Demand Surges in Data Centers](https://www.addcomponents.hk/industry-news/400g-optical-transceiver-market-accelerates-qsfp-dd-demand-surges-in-data.html): 400G Optical Transceiver Market Accelerates: QSFP-DD Demand Surges in Data CentersJune 5, 2026The optical transceiver market is undergoing its fastest generational transition since the shift from 10G 
- [Global FPGA Supply Tightening in Q3 2026: What Industrial Buyers Need to Know](https://www.addcomponents.hk/industry-news/global-fpga-supply-tightening-in-q3-2026-what-industrial-buyers-need-to-know.html): Global FPGA Supply Tightening in Q3 2026: What Industrial Buyers Need to KnowJune 12, 2026Procurement teams across the electronics industry are reporting extended lead times on field-programmable gate
- [Industry News Global FPGA Supply Tightening in Q3 2026: What Industrial Buyers Need to Know](https://www.addcomponents.hk/industry-news/industry-news-global-fpga-supply-tightening-in-q3-2026-what-industrial-buyers.html): Global FPGA Supply Tightening in Q3 2026: What Industrial Buyers Need to KnowJune 12, 2026Procurement teams across the electronics industry are reporting extended lead times on field-programmable gate
- [DDR5 Procurement Strategy: When to Buy, How to Budget, and Where to Source](https://www.addcomponents.hk/industry-news/ddr5-procurement-strategy-when-to-buy-how-to-budget-and-where-to-source.html): DDR5 Procurement Strategy: When to Buy, How to Budget, and Where to SourceJune 18, 2026DDR5 server memory has been on a pricing rollercoaster since early 2025, and the ride isn't over. For procurement
- [Compatible vs OEM Optical Transceivers: Total Cost of Ownership Analysis](https://www.addcomponents.hk/industry-news/compatible-vs-oem-optical-transceivers-total-cost-of-ownership-analysis.html): Compatible vs OEM Optical Transceivers: Total Cost of Ownership AnalysisJune 18, 2026The debate over compatible vs. OEM optical transceivers is one of the most persistent in data center procurement — 
- [Company News](https://www.addcomponents.hk/company-news.html): ADD Components company news: PCBA service launches, optical transceiver inventory updates, distribution expansions, and event announcements. Hong Kong electronic components distributor.
- [Turnkey PCBA Service: Components + Assembly from One Purchase Order](https://www.addcomponents.hk/company-news/turnkey-pcba-service-components-assembly-from-one-purchase-order.html): Turnkey PCBA Service: Components + Assembly from One Purchase OrderJune 18, 2026Every procurement manager knows the scenario: your design team finalizes a BOM, you send RFQs to a handful of component 
- [Quick-Turn Prototype PCBA: From Concept to Assembled Board in 7 Days](https://www.addcomponents.hk/company-news/quick-turn-prototype-pcba-from-concept-to-assembled-board-in-7-days.html): Quick-Turn Prototype PCBA: From Concept to Assembled Board in 7 DaysJune 18, 2026If you've ever tried to source components for a prototype build, you know the drill: you need 10 units of a specific MC
- [One BOM, One Supplier: The Business Case for Consolidated Electronic Component Sourcing](https://www.addcomponents.hk/company-news/one-bom-one-supplier-the-business-case-for-consolidated-electronic-component.html): One BOM, One Supplier: The Business Case for Consolidated Electronic Component SourcingJune 18, 2026Walk into a typical mid-sized OEM's procurement office and you'll find a familiar scene: a BOM with 
- [Why Hong Kong Remains Asia's Premier Electronic Components Distribution Hub](https://www.addcomponents.hk/company-news/why-hong-kong-remains-asia-s-premier-electronic-components-distribution-hub.html): Why Hong Kong Remains Asia's Premier Electronic Components Distribution HubJune 18, 2026In an era of shifting supply chains, trade realignments, and debate about Asia-Pacific logistics centers, one fa
- [ADD Components Launches One-Stop PCBA Solutions: Components + Assembly from One Purchase Order](https://www.addcomponents.hk/company-news/add-components-launches-one-stop-pcba-solutions-components-assembly-from-one-2.html): ADD Components Launches One-Stop PCBA Solutions: Components + Assembly from One Purchase OrderJune 8, 2026ADD Components today announced the launch of its integrated PCBA Solutions service, combining 
- [ADD Components Launches One-Stop PCBA Solutions: Components + Assembly from One Purchase Order](https://www.addcomponents.hk/company-news/add-components-launches-one-stop-pcba-solutions-components-assembly-from-one.html): ADD Components Launches One-Stop PCBA Solutions: Components + Assembly from One Purchase OrderJune 8, 2026ADD Components today announced the launch of its integrated PCBA Solutions service, combining 
- [ADD Components Expands Semiconductor Distribution with Hong Kong Logistics Hub](https://www.addcomponents.hk/company-news/add-components-expands-semiconductor-distribution-with-hong-kong-logistics-hub-2.html): ADD Components Expands Semiconductor Distribution with Hong Kong Logistics HubJune 15, 2026ADD Components Co., Limited, a Hong Kong-based semiconductor and optical module distributor, today announced 
- [ADD Components Expands Semiconductor Distribution with Hong Kong Logistics Hub](https://www.addcomponents.hk/company-news/add-components-expands-semiconductor-distribution-with-hong-kong-logistics-hub.html): Company NewsADD Components Expands Semiconductor Distribution with Hong Kong Logistics HubJune 15, 2026ADD Components Co., Limited, a Hong Kong-based semiconductor and optical module distributor, toda
- [Technical Guides](https://www.addcomponents.hk/technical-guides.html): Technical guides on electronic component selection, BOM procurement, PCBA assembly, optical transceivers, and counterfeit prevention. Engineering-level insights from ADD Components Hong Kong.
- [RF Transistors — High-Frequency Signal Processing](https://www.addcomponents.hk/technical-guides/rf-transistors-high-frequency-signal-processing.html): RF transistor sourcing guide: RF BJT, RF MOSFET, RF power transistors, and LDMOS for communications, broadcast, radar, and ISM applications. ADD Components supplies Nexperia, Infineon, and NXP RF tran
- [Unijunction Transistors — UJT and Programmable UJT Devices](https://www.addcomponents.hk/technical-guides/unijunction-transistors-ujt-and-programmable-ujt-devices.html): UJT and PUT sourcing guide: relaxation oscillators, thyristor triggers, timing. ADD supplies ON Semi UJT/PUT. Транзисторы однопереходные оптом. Доставка в РФ.
- [Switching Transistors — Fast, Efficient Power Control](https://www.addcomponents.hk/technical-guides/switching-transistors-fast-efficient-power-control.html): Switching transistor sourcing guide: BJT, MOSFET, and IGBT for power conversion, motor drives, relay control, and SMPS. ADD Components supplies Infineon, STMicroelectronics, ON Semiconductor, and Nexp
- [Bipolar Junction Transistors — NPN and PNP Discrete Transistors](https://www.addcomponents.hk/technical-guides/bipolar-junction-transistors-npn-and-pnp-discrete-transistors.html): BJT guide: NPN and PNP transistors for switching, amplification. ADD supplies ON Semi, STM, Nexperia. Транзисторы биполярные оптом. Доставка в РФ.
- [Amplifying Transistors — Linear Signal Amplification](https://www.addcomponents.hk/technical-guides/amplifying-transistors-linear-signal-amplification.html): Amplifying transistor sourcing guide: small-signal BJT, JFET, and MOSFET transistors for low-noise preamplifiers, audio circuits, and instrumentation. ADD Components supplies ON Semiconductor, Nexperi
- [Integrated Circuits (ICs) — Complete Sourcing Guide](https://www.addcomponents.hk/technical-guides/integrated-circuits-ics-complete-sourcing-guide.html): RF and mixed signal IC sourcing guide: RF amplifiers, transceivers, mixers, data converters, and clock/timing ICs. ADD Components stocks ADI and TI RF and mixed signal ICs with full traceability and a
- [Analog ICs — Precision Signal Processing](https://www.addcomponents.hk/technical-guides/analog-ics-precision-signal-processing-2.html): Analog IC sourcing guide: operational amplifiers, comparators, voltage regulators, ADC/DAC converters, and voltage references. ADD Components stocks Analog Devices (ADI) and Texas Instruments (TI) ana
- [igital ICs & FPGAs — Logic, Memory, and Programmable Hardware](https://www.addcomponents.hk/technical-guides/igital-ics-fpgas-logic-memory-and-programmable-hardware.html): Digital ICs and FPGA sourcing guide: logic ICs, memory ICs, Xilinx Spartan/Artix/Kintex/Zynq, and Altera Cyclone/MAX/Arria FPGAs. ADD Components stocks digital ICs from TI, Xilinx (AMD), and Altera (I
- [RF ICs — Wireless Communication and RF Signal Processing](https://www.addcomponents.hk/technical-guides/rf-ics-wireless-communication-and-rf-signal-processing-2.html): RF IC sourcing guide: RF amplifiers (LNA, PA, gain block), RF transceivers, mixers, synthesizers, PLLs, and wireless communication ICs. ADD Components stocks ADI and TI RF ICs with anti-counterfeit ve
- [Microcontrollers (MCUs) — The Brains of Embedded Systems](https://www.addcomponents.hk/technical-guides/microcontrollers-mcus-the-brains-of-embedded-systems-2.html): Microcontroller sourcing guide: STM32F1, STM32F4, STM32F7, STM32H7 series. ADD Components stocks STMicroelectronics MCUs in depth — from entry-level to high-performance ARM Cortex-M — with full tracea
- [Mixed Signal ICs — Bridging Analog and Digital Worlds](https://www.addcomponents.hk/technical-guides/mixed-signal-ics-bridging-analog-and-digital-worlds.html): Mixed signal IC sourcing guide: ADC/DAC data converters, clock generators, PLLs, and interface ICs. ADD Components stocks ADI and TI mixed signal ICs with full traceability — from precision 24-bit ADC
- [ASICs — Application-Specific Integrated Circuits](https://www.addcomponents.hk/technical-guides/asics-application-specific-integrated-circuits.html): ASIC sourcing guide: Power Management ICs (PMICs), System-on-Chip (SoC), custom and application-specific ICs. ADD Components sources ASICs across multiple brands with full traceability and anti-counte
- [Integrated Circuits (ICs) — Complete Sourcing Guide](https://www.addcomponents.hk/blog/integrated-circuits.html): Complete guide to integrated circuits covering 6 categories: Analog ICs, Digital ICs & FPGAs, Microcontrollers, RF ICs, Mixed Signal ICs, and ASICs. ADD Components stocks STM, ADI, TI, Xilinx, and Alt
- [Analog ICs — Precision Signal Processing](https://www.addcomponents.hk/technical-guides/analog-ics-precision-signal-processing.html): Analog IC sourcing guide: operational amplifiers, comparators, voltage regulators, ADC/DAC converters, and voltage references. ADD Components stocks ADI and TI analog ICs with anti-counterfeit verific
- [Digital ICs & FPGAs — Logic, Memory, and Programmable Hardware](https://www.addcomponents.hk/technical-guides/digital-ics-fpgas-logic-memory-and-programmable-hardware.html): Digital ICs and FPGA sourcing guide: logic ICs, memory ICs, Xilinx Spartan/Artix/Kintex/Zynq, and Altera Cyclone/MAX/Arria FPGAs. ADD Components stocks digital ICs from TI, Xilinx (AMD), and Altera (I
- [Microcontrollers (MCUs) — The Brains of Embedded Systems](https://www.addcomponents.hk/technical-guides/microcontrollers-mcus-the-brains-of-embedded-systems.html): Microcontroller sourcing guide: STM32F1, STM32F4, STM32F7, STM32H7 series. ADD Components stocks STMicroelectronics MCUs in depth — from entry-level to high-performance ARM Cortex-M — with full tracea
- [RF ICs — Wireless Communication and RF Signal Processing](https://www.addcomponents.hk/technical-guides/rf-ics-wireless-communication-and-rf-signal-processing.html): RF IC sourcing guide: RF amplifiers (LNA, PA, gain block), RF transceivers, mixers, synthesizers, PLLs, and wireless communication ICs. ADD Components stocks ADI and TI RF ICs with anti-counterfeit ve
- [Xilinx vs Intel FPGA: A Practical Selection Guide for Industrial Applications](https://www.addcomponents.hk/technical-guides/xilinx-vs-intel-fpga-practical-selection-guide-industrial-applications.html): Xilinx vs Intel FPGA: A Practical Selection Guide for Industrial ApplicationsJune 18, 2026Choosing between Xilinx (now AMD) and Intel (formerly Altera) FPGAs is one of the most consequential decisions
- [Vishay Intertechnology: Discrete and Passive Component Sourcing Guide](https://www.addcomponents.hk/technical-guides/vishay-intertechnology-discrete-and-passive-component-sourcing-guide.html): Vishay Intertechnology: Discrete and Passive Component Sourcing GuideJune 18, 2026Vishay Intertechnology is one of the broadest component manufacturers in the world, spanning resistors, capacitors, in
- [Texas Instruments (TI) Electronic Components: Sourcing Guide for Procurement Teams](https://www.addcomponents.hk/technical-guides/texas-instruments-ti-electronic-components-sourcing-guide-for-procurement-teams.html): Texas Instruments (TI) Electronic Components: Sourcing Guide for Procurement TeamsJune 18, 2026Texas Instruments remains the dominant force in analog and embedded processing semiconductors — with over
- [TE Connectivity: Industrial & Automotive Connector Sourcing Guide](https://www.addcomponents.hk/technical-guides/te-connectivity-industrial-automotive-connector-sourcing-guide.html): TE Connectivity: Industrial & Automotive Connector Sourcing GuideJune 18, 2026TE Connectivity — the $16 billion connector and sensor giant headquartered in Switzerland — is the world's largest connect
- [STMicroelectronics STM32 & Components Sourcing: A Buyer's Guide](https://www.addcomponents.hk/technical-guides/stmicroelectronics-stm32-components-sourcing-a-buyer-s-guide.html): STMicroelectronics STM32 & Components Sourcing: A Buyer's GuideJune 18, 2026STMicroelectronics ships over 10 billion STM32 microcontrollers annually — making it the most widely deployed 32-bit MCU fam
- [Electronic Sensors: Temperature, Pressure, Motion, and Current Sensor Sourcing Guide](https://www.addcomponents.hk/technical-guides/electronic-sensors-temperature-pressure-motion-and-current-sensor-sourcing-guide.html): Electronic Sensors: Temperature, Pressure, Motion, and Current Sensor Sourcing GuideJune 18, 2026Electronic sensors are the sensory organs of modern electronics — measuring temperature, pressure, moti
- [RF Chips & Front-End Components: Sourcing Guide for Wireless and 5G](https://www.addcomponents.hk/technical-guides/rf-chips-front-end-components-sourcing-guide-for-wireless-and-5g.html): RF Chips & Front-End Components: Sourcing Guide for Wireless and 5GJune 18, 2026The RF front-end is the critical signal path between antenna and baseband in every wireless system — and it is one of th
- [Renesas Electronics: MCU, SoC, and Power Component Sourcing Guide](https://www.addcomponents.hk/technical-guides/renesas-electronics-mcu-soc-and-power-component-sourcing-guide.html): Renesas Electronics: MCU, SoC, and Power Component Sourcing GuideJune 18, 2026Renesas Electronics — formed from the merger of Hitachi, Mitsubishi, and NEC semiconductor divisions — is the world's larg
- [Power Management ICs: DC-DC Converters, LDOs, PMICs Sourcing Guide](https://www.addcomponents.hk/technical-guides/power-management-ics-dc-dc-converters-ldos-pmics-sourcing-guide.html): Power Management ICs: DC-DC Converters, LDOs, PMICs Sourcing GuideJune 18, 2026Power management ICs are the quiet backbone of every electronic system — and they are currently among the most allocation
- [PCB Fabrication & Sourcing Guide: Layer Stackup, Material Selection & What to Specify Before Ordering](https://www.addcomponents.hk/technical-guides/pcb-fabrication-sourcing-guide-layer-stackup-material-selection-what-to-specify.html): PCB Fabrication & Sourcing Guide: Layer Stackup, Material Selection & What to Specify Before OrderingJune 10, 2026Specifying a PCB fabrication order correctly is the difference between a board that wo
- [PCBA Assembly Process Explained: SMT, Through-Hole, and Mixed Technology](https://www.addcomponents.hk/technical-guides/pcba-assembly-process-explained-smt-through-hole-and-mixed-technology.html): PCBA Assembly Process Explained: SMT, Through-Hole, and Mixed TechnologyJune 3, 2026Understanding the PCBA assembly process helps procurement teams communicate more effectively with their assembly par
- [Optocouplers & Digital Isolators: Galvanic Isolation Component Sourcing Guide](https://www.addcomponents.hk/technical-guides/optocouplers-digital-isolators-galvanic-isolation-component-sourcing-guide.html): Optocouplers & Digital Isolators: Galvanic Isolation Component Sourcing GuideJune 18, 2026Galvanic isolation is the invisible safety net of modern electronics — protecting users from high-voltage shoc
- [Optical Module Buying Guide: SFP, QSFP, Compatibility, and How to Pick the Right Transceiver](https://www.addcomponents.hk/technical-guides/optical-module-buying-guide-sfp-qsfp-compatibility-and-how-to-pick-the-right.html): Optical Module Buying Guide: SFP, QSFP, Compatibility, and How to Pick the Right TransceiverMay 28, 2026Optical transceivers are among the most frequently ordered — and most frequently mis-specified —
- [onsemi: Power Management and Analog Component Sourcing Guide](https://www.addcomponents.hk/technical-guides/onsemi-power-management-and-analog-component-sourcing-guide.html): onsemi: Power Management and Analog Component Sourcing GuideJune 18, 2026onsemi (formerly ON Semiconductor) sits at the center of three of the fastest-growing semiconductor markets: automotive electri
- [NXP Semiconductors: Automotive & Industrial Component Sourcing Guide](https://www.addcomponents.hk/technical-guides/nxp-semiconductors-automotive-industrial-component-sourcing-guide.html): NXP Semiconductors: Automotive & Industrial Component Sourcing GuideJune 18, 2026NXP Semiconductors — the Dutch-headquartered company that spun out of Philips in 2006 and absorbed Freescale in 2015 — 
- [Murata Manufacturing: MLCC, Inductor, and Passive Component Sourcing Guide](https://www.addcomponents.hk/technical-guides/murata-manufacturing-mlcc-inductor-and-passive-component-sourcing-guide.html): Murata Manufacturing: MLCC, Inductor, and Passive Component Sourcing GuideJune 18, 2026Murata Manufacturing is the world's largest supplier of multilayer ceramic capacitors (MLCCs) and a dominant forc
- [Motor Driver ICs: BLDC, Stepper, and DC Motor Control Sourcing Guide](https://www.addcomponents.hk/technical-guides/motor-driver-ics-bldc-stepper-and-dc-motor-control-sourcing-guide.html): Motor Driver ICs: BLDC, Stepper, and DC Motor Control Sourcing GuideJune 18, 2026Motor driver ICs bridge the gap between low-voltage digital control signals and the high-current, high-voltage world of
- [Molex Connectors: Sourcing Guide for Board-to-Board, Wire-to-Board, and High-Speed Interconnects](https://www.addcomponents.hk/technical-guides/molex-connectors-sourcing-guide-for-board-board-wire-board-and-high-speed.html): Molex Connectors: Sourcing Guide for Board-to-Board, Wire-to-Board, and High-Speed InterconnectsJune 18, 2026Molex — the Lisle, Illinois-based subsidiary of Koch Industries — is the world's second-lar
- [Micron Technology: DRAM, NAND Flash, and Memory Sourcing Guide](https://www.addcomponents.hk/technical-guides/micron-technology-dram-nand-flash-and-memory-sourcing-guide.html): Micron Technology: DRAM, NAND Flash, and Memory Sourcing GuideJune 18, 2026Micron Technology — one of the world's three dominant memory manufacturers alongside Samsung and SK hynix — produces the DRAM
- [Microchip Technology Components: PIC, AVR, and FPGA Sourcing Guide](https://www.addcomponents.hk/technical-guides/microchip-technology-components-pic-avr-and-fpga-sourcing-guide.html): Microchip Technology Components: PIC, AVR, and FPGA Sourcing GuideJune 18, 2026Microchip Technology's portfolio — spanning 8-bit PIC MCUs, 32-bit PIC32 processors, AVR microcontrollers, FPGAs, analog 
- [Memory ICs: DRAM, SRAM, NOR Flash, NAND Flash Sourcing Guide](https://www.addcomponents.hk/technical-guides/memory-ics-dram-sram-nor-flash-nand-flash-sourcing-guide.html): Memory ICs: DRAM, SRAM, NOR Flash, NAND Flash Sourcing GuideJune 18, 2026Memory ICs are the commodity backbone of electronics — yet their procurement is anything but straightforward. DRAM prices swing
- [Logic ICs: Gates, Buffers, Translators, and Flip-Flops Sourcing Guide](https://www.addcomponents.hk/technical-guides/logic-ics-gates-buffers-translators-and-flip-flops-sourcing-guide.html): Logic ICs: Gates, Buffers, Translators, and Flip-Flops Sourcing GuideJune 18, 2026Logic ICs may seem like the simplest components on any BOM — basic gates, buffers, flip-flops, and level translators —
- [Interface ICs: USB, HDMI, PCIe, Ethernet PHY Sourcing Guide](https://www.addcomponents.hk/technical-guides/interface-ics-usb-hdmi-pcie-ethernet-phy-sourcing-guide.html): Interface ICs: USB, HDMI, PCIe, Ethernet PHY Sourcing GuideJune 18, 2026Interface ICs are the silicon bridges that connect processors to the outside world — USB controllers, PCIe switches, HDMI transm
- [Infineon Technologies: MOSFET, IGBT, and Power IC Sourcing Guide](https://www.addcomponents.hk/technical-guides/infineon-technologies-mosfet-igbt-and-power-ic-sourcing-guide.html): Infineon Technologies: MOSFET, IGBT, and Power IC Sourcing GuideJune 18, 2026Infineon Technologies commands roughly 30% of the global power semiconductor market, making it the indispensable supplier f
- [How to Find Reliable Electronic Component Suppliers in Asia — A Procurement Manager's Guide](https://www.addcomponents.hk/technical-guides/how-to-find-reliable-electronic-component-suppliers-in-asia-a-procurement.html): How to Find Reliable Electronic Component Suppliers in Asia — A Procurement Manager's GuideJune 16, 2026Asia dominates global electronic component manufacturing — over 60% of semiconductors and 80% of
- [EOL Component Management: A Procurement Survival Guide for OEMs](https://www.addcomponents.hk/technical-guides/eol-component-management-a-procurement-survival-guide-for-oems.html): EOL Component Management: A Procurement Survival Guide for OEMsJune 17, 2026Every electronic component has a finite lifecycle. When a manufacturer issues an End-of-Life (EOL) notice — or worse, discon
- [Embedded Processors & SoCs: ARM Cortex, RISC-V, and Edge AI Sourcing Guide](https://www.addcomponents.hk/technical-guides/embedded-processors-socs-arm-cortex-risc-v-and-edge-ai-sourcing-guide.html): Embedded Processors & SoCs: ARM Cortex, RISC-V, and Edge AI Sourcing GuideJune 18, 2026Embedded processors and SoCs (System-on-Chips) represent the most complex procurement challenge in electronic com
- [Development Board BOM Kits: From Reference Design to Production Sourcing](https://www.addcomponents.hk/technical-guides/development-board-bom-kits-from-reference-design-to-production-sourcing.html): Development Board BOM Kits: From Reference Design to Production SourcingJune 18, 2026Semiconductor vendors invest millions in reference designs and evaluation kits — but they invest almost nothing in 
- [Counterfeit Electronic Components: How to Protect Your Supply Chain in 2026](https://www.addcomponents.hk/technical-guides/counterfeit-electronic-components-how-to-protect-your-supply-chain-in-2026.html): Counterfeit Electronic Components: How to Protect Your Supply Chain in 2026June 18, 2026Counterfeit electronic components cost the global electronics industry an estimated US$5–8 billion annually. The
- [Communication ICs: Ethernet, CAN, RS-485, and Wireless Connectivity Sourcing Guide](https://www.addcomponents.hk/technical-guides/communication-ics-ethernet-can-rs-485-and-wireless-connectivity-sourcing-guide.html): Communication ICs: Ethernet, CAN, RS-485, and Wireless Connectivity Sourcing GuideJune 18, 2026Communication interfaces are the nervous system of modern electronics — every industrial controller, auto
- [Clock & Timing ICs: Oscillators, PLLs, Jitter Cleaners Sourcing Guide](https://www.addcomponents.hk/technical-guides/clock-timing-ics-oscillators-plls-jitter-cleaners-sourcing-guide.html): Clock & Timing ICs: Oscillators, PLLs, Jitter Cleaners Sourcing GuideJune 18, 2026Clock and timing ICs are the heartbeat of every electronic system — from 5G base stations and data center switches to 
- [Broadcom: Networking, Storage, and RF Component Sourcing Guide](https://www.addcomponents.hk/technical-guides/broadcom-networking-storage-and-rf-component-sourcing-guide.html): Broadcom: Networking, Storage, and RF Component Sourcing GuideJune 18, 2026Broadcom is one of the most difficult semiconductor manufacturers to source from — by design. The company's go-to-market stra
- [BOM Optimization for PCBA: Reduce Cost Without Sacrificing Reliability](https://www.addcomponents.hk/technical-guides/bom-optimization-for-pcba-reduce-cost-without-sacrificing-reliability.html): BOM Optimization for PCBA: Reduce Cost Without Sacrificing ReliabilityJune 18, 2026A bill of materials isn't just a shopping list — it's a cost structure that gets locked in the moment an engineer sel
- [Coupled Inductors and Common Mode Chokes](https://www.addcomponents.hk/blog/coupled-inductors-and-common-mode-chokes.html): Coupled inductor and common mode choke guide: dual-winding, multi-phase, EMI filtering. ADD stocks Coilcraft, Bourns, TDK, Murata, Wurth. Buy chokes online from HK.
- [Techniques for Replacing Components with Similar Parameters in Discrete Semiconductors](https://www.addcomponents.hk/blog/7560.html): Building upon the foundational methodology for discrete device substitution outlined earlier, the process of identifying a component with closely matched parameters requires a structured, multi-layere
- [Air Core Inductors — High-Frequency, High-Q, No Saturation](https://www.addcomponents.hk/blog/air-core-inductors-high-frequency-high-q-no-saturation.html): Air core inductor guide: no magnetic core, high frequency, high Q, no saturation. ADD stocks Coilcraft, Vishay. Buy air core inductors online from HK distributor.
- [Key points for long-term storage and preservation of discrete semiconductors](https://www.addcomponents.hk/blog/key-points-for-long-term-storage-and-preservation-of-discrete-semiconductors.html): Effective long-term storage of discrete semiconductors is a systematic discipline aimed at preserving their electrical parameters, solderability, and mechanical integrity over extended periods, often 
- [Silver Mica Capacitors: High Precision, Low Loss, High Stability](https://www.addcomponents.hk/blog/silver-mica-capacitors-high-precision-low-loss-high-stability.html): Silver mica capacitor guide: high precision, low loss, high stability for RF and audio. ADD stocks Cornell Dubilier, Vishay. Buy mica capacitors online from HK distributor.
- [Ceramic Capacitors - MLCC and Ceramic Disc Capacitors](https://www.addcomponents.hk/blog/ceramic-capacitors-mlcc-and-ceramic-disc-capacitors.html): Ceramic capacitor guide: MLCC, disc, C0G/NP0, X7R, X5R, high-voltage. ADD stocks Murata, Samsung, TDK, AVX, KEMET. Buy ceramic capacitors online from HK.
- [Film Capacitors - Polyester, Polypropylene and PPS](https://www.addcomponents.hk/blog/film-capacitors-polyester-polypropylene-and-pps.html): Film capacitor guide: polyester, polypropylene, PPS, metallized vs foil. ADD stocks KEMET, Vishay, WIMA, Panasonic. Buy film capacitors online from HK distributor.
- [Tantalum Capacitors - Solid, Polymer and Wet Tantalum](https://www.addcomponents.hk/blog/tantalum-capacitors-solid-polymer-and-wet-tantalum.html): Tantalum capacitor guide: solid MnO2, polymer, wet tantalum for aerospace, medical. ADD stocks AVX, KEMET, Vishay. Buy tantalum capacitors online from HK distributor.
- [Supercapacitors - EDLC and Hybrid Ultracapacitors](https://www.addcomponents.hk/blog/supercapacitors-edlc-and-hybrid-ultracapacitors.html): Supercapacitor guide: EDLC, hybrid, for backup power, energy harvesting, automotive. ADD stocks Eaton, Maxwell, Panasonic, Murata. Buy supercapacitors online from HK.
- [Aluminum Electrolytic Capacitors: Radial, Snap-In, Screw Terminal and SMD](https://www.addcomponents.hk/blog/aluminum-electrolytic-capacitors-radial-snap-in-screw-terminal-and-smd.html): Aluminum electrolytic capacitor guide: radial, snap-in, screw, SMD, low ESR. ADD stocks Nichicon, Rubycon, Panasonic, CDE. Buy electrolytic capacitors online from HK.
- [Techniques for Moisture Absorption and Drying Treatment of Discrete Semiconductors](https://www.addcomponents.hk/blog/7549.html): Moisture absorption in discrete semiconductors is a critical failure mechanism, where water vapor penetrates the plastic mold compound and can turn to steam during high-temperature soldering, causing 
- [Fixed Resistors: Carbon Film, Metal Film and Carbon Composition](https://www.addcomponents.hk/blog/fixed-resistors-carbon-film-metal-film-and-carbon-composition.html): Fixed resistor guide: carbon film, metal film, composition. ADD stocks Vishay, Yageo, KOA. Buy fixed resistors online from HK distributor.
- [Variable Resistors: Potentiometers, Trimmers and Rheostats](https://www.addcomponents.hk/blog/variable-resistors-potentiometers-trimmers-and-rheostats.html): Variable resistor guide: potentiometers, trimmers, rheostats. ADD stocks Bourns, Vishay, Panasonic. Buy variable resistors online from HK distributor.
- [Tips for Storing Discrete Components in Darkness](https://www.addcomponents.hk/blog/7545.html): Select storage containers constructed from materials that provide full-spectrum opacity, particularly against ultraviolet and high-energy visible light wavelengths known to degrade semiconductor prope
- [Film Resistors: A Complete Guide to Metal Film, Carbon Film, Thin Film, and Thick Film Types](https://www.addcomponents.hk/blog/film-resistors-a-complete-guide-to-metal-film-carbon-film-thin-film-and-thick.html): Film resistor guide: metal film, carbon film, thin film, thick film. ADD stocks Vishay, Yageo, Panasonic, KOA. Buy film resistors online from HK distributor.
- [Precautions for Moisture Protection of Discrete Components](https://www.addcomponents.hk/blog/precautions-for-moisture-protection-of-discrete-components.html): Proper moisture protection during the storage of discrete semiconductor devices is critical to prevent performance degradation, parameter drift, and catastrophic failure modes such as popcorning or in
- [Power Resistors: A Complete Guide to High-Power, Heat-Sink, and Braking Resistors](https://www.addcomponents.hk/blog/power-resistors-a-complete-guide-to-high-power-heat-sink-and-braking-resistors.html): Power resistor guide: metal oxide, thick film, braking resistors 1W-1kW. ADD stocks Vishay, Ohmite, TE Connectivity, Bourns. Buy power resistors online from HK.
- [Rapid Fault Detection for Discrete Semiconductors](https://www.addcomponents.hk/blog/rapid-fault-detection-for-discrete-semiconductors.html): When a circuit malfunctions, discrete semiconductors like diodes, transistors, and thyristors are frequent suspects. A systematic, rapid diagnostic approach can isolate the root cause—whether it's a c
- [Wirewound Resistors — High-Stability Power & Precision](https://www.addcomponents.hk/blog/wirewound-resistors-high-stability-power-precision.html): Wirewound resistor guide: ceramic core, vitreous enamel, aluminum-housed. ADD stocks Vishay, Ohmite, KOA Speer. Buy wirewound resistors online from HK distributor.
- [Improvement of failure caused by poor heat dissipation of discrete components](https://www.addcomponents.hk/blog/improvement-of-failure-caused-by-poor-heat-dissipation-of-discrete-components.html): Building on the established context of discrete semiconductor failure analysis—from electrical overstress and thermal runaway to mechanical damage—thermal management stands as a foundational reliabili
- [Repair of mechanical damage failure in discrete semiconductors](https://www.addcomponents.hk/blog/repair-of-mechanical-damage-failure-in-discrete-semiconductors.html): Building on the previous context of analyzing various failure modes in discrete semiconductors—such as electrical overstress, thermal runaway, and parameter drift—mechanical damage presents a distinct
- [SMD Resistors — Surface-Mount Chip Resistors](https://www.addcomponents.hk/blog/smd-resistors-surface-mount-chip-resistors.html): SMD resistor guide: 0201-1206 chip resistors, thick film, thin film, current sense. ADD stocks Yageo, Vishay, Samsung, Panasonic. Buy SMD resistors online from HK.
- [Ceramic component corrosion failure handling method](https://www.addcomponents.hk/blog/ceramic-component-corrosion-failure-handling-method.html): Discrete semiconductor corrosion failure is a gradual, often hidden process that erodes metal leads, bond wires, and die surfaces over time, leading to intermittent electrical drift, increased leakage
- [Prevention Techniques for Moisture Failure in Discrete Semiconductors](https://www.addcomponents.hk/blog/prevention-techniques-for-moisture-failure-in-discrete-semiconductors-2.html): Discrete semiconductors form the core of countless high-stakes electronic systems, from industrial motor drives and automotive powertrain controls to aerospace navigation units and outdoor communicati
- [Thermal failure treatment method for discrete components](https://www.addcomponents.hk/blog/thermal-failure-treatment-method-for-discrete-components.html): The foundation for reliable low-temperature operation is selecting components specifically characterized or designed for such conditions. Standard commercial-grade silicon semiconductors experience si
- [Temperature Sensors: Thermocouples, RTDs, Thermistors and Digital ICs](https://www.addcomponents.hk/blog/7528.html): Temperature sensor guide: thermocouples, RTDs, NTC/PTC thermistors, digital temp ICs. ADD stocks TI, Honeywell, Maxim, ADI. Buy temperature sensors online from HK.
- [Ultrasonic Distance Sensors: Ranging Modules, Transducers and Time-of-Flight Solutions](https://www.addcomponents.hk/blog/ultrasonic-distance-sensors-ranging-modules-transducers-and-time-flight.html): Ultrasonic distance sensor guide: ranging modules, 40kHz transducers for robotics, level measurement, parking assist. ADD stocks MaxBotix, Murata, SensComp. Buy ultrasonic sensors online.
- [Troubleshooting for increased noise in discrete components](https://www.addcomponents.hk/blog/troubleshooting-for-increased-noise-in-discrete-components.html): Rising noise levels in discrete devices are a common, often overlooked fault that can gradually degrade signal clarity, introduce unwanted interference, and even trigger hidden performance drops acros
- [Analysis of Amplifier Performance Failure in Discrete Semiconductors](https://www.addcomponents.hk/blog/analysis-of-amplifier-performance-failure-in-discrete-semiconductors.html): Discrete semiconductors form the backbone of countless analog and signal amplification circuits, and unexpected degradation of their amplification performance can trigger cascading faults across entir
- [Temperature and Humidity Sensors: Selection and Sourcing Guide](https://www.addcomponents.hk/blog/temperature-and-humidity-sensors-selection-and-sourcing-guide.html): Temp and humidity sensor guide: DHT22, SHT30, SHT40, BME280 for HVAC, cold chain, IoT. ADD stocks Sensirion, Bosch, TI, Honeywell. Buy humidity sensors online from HK distributor.
- [Handling of failure in discrete device switches](https://www.addcomponents.hk/blog/handling-of-failure-in-discrete-device-switches.html): Begin by confirming the exact nature of the failure mode under controlled conditions. Use an oscilloscope with a current probe to capture the gate drive waveform (for FETs/IGBTs) or base drive current
- [Wired Ultrasonic Transducers: Selection and Sourcing Guide](https://www.addcomponents.hk/blog/wired-ultrasonic-transducers-selection-and-sourcing-guide.html): Ultrasonic transducer guide: piezoelectric elements for cleaning, welding, medical imaging, flow metering. ADD stocks Murata, Prowave, Audiowell. Buy ultrasonic transducers online.
- [Proximity Sensors for Industrial Automation & Object Detection](https://www.addcomponents.hk/blog/proximity-sensors-for-industrial-automation-object-detection.html): Proximity sensor guide: inductive, capacitive, magnetic, photoelectric for automation. ADD stocks Omron, Sick, IFM, Keyence, Littelfuse. Buy proximity sensors online from HK distributor.
- [Pressure Sensors for Medical, Industrial & Automotive Applications](https://www.addcomponents.hk/blog/pressure-sensors-for-medical-industrial-automotive-applications.html): Pressure sensor guide: barometric, differential, gauge, absolute. BMP388, LPS25H, MS5611. ADD stocks Bosch, STMicro, TE, Honeywell. Buy pressure sensors online from HK.
- [Prevention of Reverse Breakdown Failure in Discrete Devices](https://www.addcomponents.hk/blog/prevention-of-reverse-breakdown-failure-in-discrete-devices.html): Reverse breakdown in discrete semiconductors does not occur randomly, it almost always stems from unaccounted stress conditions that push the device past its designed safe reverse voltage limits. Many
- [Treatment for oxide failure of discrete device pins](https://www.addcomponents.hk/blog/treatment-for-oxide-failure-of-discrete-device-pins.html): Oxidation on discrete component leads is a silent reliability killer that can turn a fully functional part into a complete failure over time, without leaving any obvious signs of damage on the surface
- [Repair of cracking faults in discrete semiconductor packaging](https://www.addcomponents.hk/blog/repair-of-cracking-faults-in-discrete-semiconductor-packaging.html): Cracks in discrete semiconductor packages are a common source of intermittent failure, and they often go unnoticed until the circuit stops working completely under real operating stress. These tiny fr
- [SMD Crystal Oscillators: Understanding Package Sizes, Passive vs Active, and Applications](https://www.addcomponents.hk/blog/smd-crystal-oscillators-understanding-package-sizes-passive-vs-active-and.html): SMD crystal oscillators in 5032, 3225, 2520, 2016 packages. Passive crystals and active oscillators. ADD stocks Abracon, Murata, Kyocera, TXC, Epson, NDK.
- [Analysis of Static Damage Failure in Discrete Devices](https://www.addcomponents.hk/blog/analysis-of-static-damage-failure-in-discrete-devices.html): Electrostatic discharge damage to discrete components is one of the most easily overlooked failure modes in modern electronics, and it often leaves no obvious physical marks on the part at first glanc
- [Quartz Crystal Oscillators: A Complete Guide to TCXO, VCXO, OCXO, and XO Types](https://www.addcomponents.hk/blog/quartz-crystal-oscillators-a-complete-guide-to-tcxo-vcxo-ocxo-and-xo-types.html): Quartz crystal oscillator guide: TCXO, VCXO, OCXO, XO types. ADD stocks Abracon, TXC, NDK, Epson, Rakon, SiTime. Buy crystal oscillators online from HK.
- [Handling of parameter drift faults in discrete devices](https://www.addcomponents.hk/blog/handling-of-parameter-drift-faults-in-discrete-devices.html): Parameter drift in discrete components often creeps in slowly over time, making circuits behave in unexpected ways that are hard to trace back to a single root cause. Unlike a hard failure that stops 
- [49SMD Crystal Oscillators — Compact Surface-Mount Clock Sources](https://www.addcomponents.hk/blog/49smd-crystal-oscillators-compact-surface-mount-clock-sources.html): 49SMD SMD crystal oscillators 1-200 MHz. ADD stocks Abracon, TXC, Epson, NDK metal-can clock sources. Buy oscillators online from HK distributor.
- [Solution for short-circuit failure of discrete components](https://www.addcomponents.hk/blog/solution-for-short-circuit-failure-of-discrete-components.html): Short circuit failures in discrete semiconductors are one of the most common and disruptive issues you will run into during board-level debug.
- [Techniques for troubleshooting open-circuit failures in discrete semiconductors](https://www.addcomponents.hk/blog/techniques-for-troubleshooting-open-circuit-failures-in-discrete-semiconductors.html): If you work with discrete semiconductors on a regular basis, you know that an open circuit failure can bring an entire system to a full stop without obvious warning signs.
- [3×8 mm DIP Through-Hole Crystal Oscillators — Precision Clock Sources for Industrial and Legacy Systems](https://www.addcomponents.hk/blog/3-8-mm-dip-through-hole-crystal-oscillators-precision-clock-sources-for.html): 3x8 mm DIP through-hole crystal oscillators for industrial, telecom and test equipment. ADD stocks Epson, Abracon, NDK, TXC. Buy DIP oscillators online from HK.
- [Method for handling burnout faults of discrete components](https://www.addcomponents.hk/blog/method-for-handling-burnout-faults-of-discrete-components.html): When a discrete semiconductor device shows visible burn marks, melted packaging material or permanent electrical short after operation, targeted troubleshooting and corrective actions can stop repeate
- [Analysis of the Causes of Breakdown Failure in Discrete Semiconductors](https://www.addcomponents.hk/blog/analysis-of-the-causes-of-breakdown-failure-in-discrete-semiconductors.html): When discrete semiconductor devices fail due to breakdown, the root causes often stretch across material properties, operating conditions and manufacturing process details, making targeted fault traci
- [Key points for using discrete semiconductor thermal conductive materials](https://www.addcomponents.hk/blog/key-points-for-using-discrete-semiconductor-thermal-conductive-materials.html): Proper selection and application of thermal interface materials play a critical role in reducing thermal boundary resistance between discrete semiconductors and their corresponding heat dissipation st
- [The forced air cooling method for discrete devices](https://www.addcomponents.hk/blog/the-forced-air-cooling-method-for-discrete-devices.html): For high-power discrete devices operating under continuous heavy load, forced air cooling stands out as one of the most reliable and cost-effective thermal management solutions that deliver consistent
- [Rectifier Diodes — Standard, Fast Recovery & Bridge Rectifiers](https://www.addcomponents.hk/blog/rectifier-diodes-standard-fast-recovery-bridge-rectifiers.html): Complete guide to rectifier diodes: standard rectifiers, fast recovery, and bridge rectifiers. Source real Vishay, ON Semi, STMicro parts from ADD Components.

## Contact us

- [Contact us](https://www.addcomponents.hk/contact-us.html): Contact ADD Components Hong Kong for electronic component sourcing, optical transceiver quotes, and PCBA inquiries. BOM quotations within 24 hours. Email or WhatsApp.


## Tags

- [EMI filter](https://www.addcomponents.hk/tags/emi-filter.html)
- [multi-phase inductor](https://www.addcomponents.hk/tags/multi-phase-inductor.html)
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- [Vishay](https://www.addcomponents.hk/tags/vishay.html)
- [through-hole resistor](https://www.addcomponents.hk/tags/through-hole-resistor.html)
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- [metal film resistor](https://www.addcomponents.hk/tags/metal-film-resistor.html)
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- [load bank resistor](https://www.addcomponents.hk/tags/load-bank-resistor.html)
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- [current sense resistor](https://www.addcomponents.hk/tags/current-sense-resistor.html)
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- [chip resistor](https://www.addcomponents.hk/tags/chip-resistor.html)
- [SMD resistor](https://www.addcomponents.hk/tags/smd-resistor.html)
- [Sensirion](https://www.addcomponents.hk/tags/sensirion.html)
- [BME280](https://www.addcomponents.hk/tags/bme280.html)
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- [IoT sensors](https://www.addcomponents.hk/tags/iot-sensors.html)
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- [thermistor](https://www.addcomponents.hk/tags/thermistor.html)
- [Pt100](https://www.addcomponents.hk/tags/pt100.html)
- [RTD](https://www.addcomponents.hk/tags/rtd.html)
- [thermocouple](https://www.addcomponents.hk/tags/thermocouple.html)
- [temperature sensor](https://www.addcomponents.hk/tags/temperature-sensor.html)
- [Murata MA40S4S](https://www.addcomponents.hk/tags/murata-ma40s4s.html)
- [40kHz transducer](https://www.addcomponents.hk/tags/40khz-transducer.html)
- [ultrasonic cleaning](https://www.addcomponents.hk/tags/ultrasonic-cleaning.html)

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