Complete guide to rectifier diodes: standard rectifiers, fast recovery, and bridge rectifiers. Source real Vishay, ON Semi, STMicro parts from ADD Components.
Rectifier Diodes — Standard, Fast Recovery & Bridge Rectifiers
Rectifier diodes are the workhorses of power conversion, converting alternating current (AC) to direct current (DC) in power supplies, battery chargers, motor drives, and industrial equipment. At ADD Components, we source rectifier diodes from leading manufacturers including Vishay, ON Semiconductor, STMicroelectronics, and Diodes Incorporated, serving procurement teams across Asia and worldwide. Whether you need standard recovery parts for 50/60 Hz mains rectification, fast recovery diodes for high-frequency switching, or integrated bridge rectifier modules, selecting the correct rectifier type directly affects efficiency, thermal performance, and long-term reliability. This guide covers the major categories, key selection parameters, and a representative list of parts we supply regularly.
Sub-Types / Categories
Standard Recovery Rectifiers
Standard rectifier diodes are designed for low-frequency applications operating at mains frequencies of 50 to 60 Hz. They feature high reverse voltage ratings from 50 V to over 2000 V and forward current ratings spanning 1 A to several hundred amperes. The recovery time is typically in the microsecond range, which is acceptable for line-frequency rectification because the reverse recovery loss is minimal at low switching speeds. Common package options include axial-lead DO-41 and DO-201AD for through-hole assembly, and SMA, SMB, and SMC packages for surface mount diode applications. Parts like the 1N4007 (1000 V, 1 A) and 1N5408 (1000 V, 3 A) remain the most widely used standard rectifiers in the industry. These power diodes are cost-effective and suitable for general-purpose AC-DC conversion, reverse polarity protection, and freewheeling diode functions in low-speed circuits.
Fast Recovery and Ultrafast Rectifiers
Fast recovery diodes (FRD) achieve reverse recovery times (trr) in the range of 50 to 500 ns, while ultrafast types push trr below 50 ns. This dramatically reduced recovery time minimises switching losses in high-frequency power supplies, DC-DC converters, and inverter circuits operating above 20 kHz. The trade-off is a slightly higher forward voltage drop compared to standard rectifiers, typically 1.0 V to 1.7 V at rated current. Ultrafast rectifiers are essential in output rectification stages of switch-mode power supplies (SMPS), power factor correction (PFC) circuits, and snubber networks. Popular through-hole parts include the UF4007 (1000 V, 1 A, 75 ns trr) and MUR1560 (600 V, 15 A, 50 ns trr). For SMD diode designs, the ES1J (600 V, 1 A, 35 ns trr) in SMA package is a common choice. STMicroelectronics' STTH series and ON Semiconductor's MUR series both offer extensive ultrafast portfolios for demanding applications.
Bridge Rectifiers
Bridge rectifiers integrate four rectifier diodes in a single package configured as a full-wave bridge, providing full-wave rectification from a single AC input without requiring a centre-tapped transformer. They simplify PCB layout, reduce component count, and deliver consistent thermal characteristics since all four diodes share a common substrate. Bridge rectifiers are available in through-hole DIP, GBU, and KBPC packages as well as surface mount diode formats like the miniature MBS and SDIP packages. Key specifications include peak repetitive reverse voltage (VRRM), average forward current (IO), and peak forward surge current (IFSM). The KBPC5010 (1000 V, 50 A) serves heavy industrial applications, while the MB10S (1000 V, 0.5 A) in a compact SOIC-4 package suits low-power chargers and adapters. Diodes Incorporated's DF series and Vishay's GBU series offer a broad range of voltage and current ratings for every bridge rectifier requirement.
Key Selection Parameters
Peak Repetitive Reverse Voltage (VRRM): Must exceed the maximum reverse voltage in the circuit with adequate safety margin. Select at least 1.5× the peak AC input voltage for bridge configurations.
Average Forward Current (IF(AV)): The sustained DC current the diode can conduct under specified thermal conditions. Derate for elevated ambient temperatures.
Peak Forward Surge Current (IFSM): The non-repetitive surge the diode withstands during startup or fault conditions. Critical for input rectification stages with large bulk capacitors.
Reverse Recovery Time (trr): Relevant for fast and ultrafast types. Shorter trr reduces switching losses but may increase cost. Match trr to the operating frequency of the converter.
Forward Voltage Drop (VF): Determines conduction losses. Lower VF improves efficiency but typically trades off against trr and cost.
Package / Mounting: Choose between through-hole diode packaging for manual assembly and prototyping, or surface mount diode packages for automated high-volume production.
Junction Temperature (Tj max): Typically 150°C to 175°C. Ensure adequate heatsinking for power devices.
Representative Parts We Source
| Part Number | Brand | Type | Key Spec |
|---|---|---|---|
| 1N4007 | Vishay / ON Semi | Standard Rectifier | 1000 V, 1 A, DO-41 |
| 1N5408 | Vishay | Standard Rectifier | 1000 V, 3 A, DO-201AD |
| 1N4148 | Vishay | Small Signal Switching | 100 V, 300 mA, DO-35 |
| S1M | Diodes Inc | Standard SMD Rectifier | 1000 V, 1 A, SMA |
| UF4007 | Vishay | Ultrafast Recovery | 1000 V, 1 A, trr 75 ns |
| MUR1560 | ON Semiconductor | Ultrafast Recovery | 600 V, 15 A, trr 50 ns |
| STTH30R04 | STMicroelectronics | Ultrafast Recovery | 400 V, 30 A, trr 100 ns |
| ES1J | ON Semiconductor | Ultrafast SMD | 600 V, 1 A, trr 35 ns, SMA |
| DF08M | Diodes Inc | Bridge Rectifier | 800 V, 1 A, DIP |
| GBU4K | Vishay | Bridge Rectifier | 800 V, 4 A, GBU |
| KBPC5010 | Vishay | Bridge Rectifier | 1000 V, 50 A, KBPC |
| MB10S | ON Semiconductor | Bridge SMD | 1000 V, 0.5 A, SOIC-4 |
Send Us Your Diode Requirements
ADD Components supplies the full range of rectifier diodes from Vishay, ON Semiconductor, STMicroelectronics, and Diodes Incorporated. Whether you are procuring standard 1N4007 diodes in production quantities or need fast recovery and bridge rectifier alternatives for an existing design, our team provides competitive pricing, authentic factory-original parts, and reliable delivery across the Asia-Pacific region.
Send your bill of materials (BOM) or part numbers for a same-day quotation. We support both through-hole diode and surface mount diode requirements in tape-and-reel, tube, or tray packaging.
Email: Info@addcomponents.hk | Tel: +852 5334 3091 | WhatsApp: +852 5334 3091
Last updated on July 30, 2026