Aluminum electrolytic capacitor guide: radial, snap-in, screw, SMD, low ESR. ADD stocks Nichicon, Rubycon, Panasonic, CDE. Buy electrolytic capacitors online from HK.
Aluminum Electrolytic Capacitors: Radial, Snap-In, Screw Terminal and SMD
Aluminum electrolytic capacitors are the high-capacitance workhorses of power electronics, combining values from a few microfarads to tens of thousands of microfarads with the voltage ratings required for bulk energy storage, smoothing and decoupling. As an electronic components distributor, ADD Components sources the complete range of aluminum electrolytic types — radial lead, snap-in, screw terminal and surface-mount (SMD) — from Nichicon, Rubycon, Panasonic and Cornell Dubilier. We supply low ESR and high ripple current parts with long-life ratings for power supplies, motor drives, audio amplifiers and industrial controls, at competitive wholesale pricing for OEM and distribution buyers across Asia and worldwide.
Product Types / Variants
Radial Lead Aluminum Electrolytic
Radial lead aluminum electrolytic capacitors are the most widely used format, with both leads exiting the same end for vertical PCB mounting. Available from 0.1 µF to over 10 000 µF and from 6.3 V to 450 V, they cover decoupling, filtering, smoothing and timing roles in consumer, industrial and lighting electronics. Low ESR series such as Nichicon UHE, Rubycon ZLH and Panasonic FC and FM deliver reduced internal heating and higher ripple current capability than general-purpose types, while long-life series such as Nichicon UPM extend operating life at 105 °C.
Snap-In Aluminum Electrolytic
Snap-in aluminum electrolytic capacitors feature two or more pins that snap into a PCB, supporting the larger can sizes and capacitance values that radial parts cannot reach. With ratings from roughly 100 µF to 82 000 µF and voltages to 450 V, they are the standard choice for switch-mode power supply input and output filters, motor drive DC links and inverter bus capacitors. Cornell Dubilier's 380LX series is a representative snap-in line we supply, offering high ripple current and long life in compact cans.
Screw Terminal Aluminum Electrolytic
Screw terminal aluminum electrolytic capacitors use threaded terminals for high-current, bolt-down connection to bus bars and heatsinks. These are the largest aluminum electrolytic devices, reaching into the hundreds of thousands of microfarads and serving industrial power, UPS systems, welding equipment and heavy motor drives. Their rugged construction and high ripple ratings suit continuous-duty applications where reliability is paramount. Cornell Dubilier's DCMC screw terminal series is a widely specified industrial workhorse in our catalogue.
SMD (V-Chip) Aluminum Electrolytic
Surface-mount aluminum electrolytic capacitors, often called V-chip, bring bulk capacitance to high-density automated assembly lines. Vertical can SMD parts from the Nichicon UUD and Panasonic FK series offer low impedance and long life in compact footprints, supporting power management, DC-DC converters, set-top boxes and portable equipment. Reflow-compatible construction and tape-and-reel supply make them easy to integrate into volume manufacturing.
Low ESR, High Ripple and Long Life
Three parameters dominate aluminum electrolytic selection. Low equivalent series resistance (ESR) minimises internal heating and improves high-frequency filtering; high ripple current rating ensures the capacitor survives the AC current superimposed on the DC bus; and long life rating, typically 2 000 to 10 000 hours at 105 °C, determines how long the part will maintain capacitance and ESR within specification. Specifying all three correctly extends power supply reliability and reduces field failures.
Key Selection Parameters
Capacitance and voltage rating: select with adequate derating, typically operating at no more than 80% of rated voltage.
ESR and ripple current: low ESR parts run cooler and handle higher ripple; match the ripple rating to the application's actual ripple.
Operating temperature and life: 105 °C long-life series such as UHE, UPM, ZLH, FC and FM extend service life in hot environments.
Package and mounting: radial, snap-in, screw terminal or SMD, chosen for board layout, height and mechanical requirements.
Case size and lead pitch: standard diameters and lead spacings simplify drop-in replacement and secondary sourcing.
Brand and series: Nichicon, Rubycon, Panasonic and Cornell Dubilier series are interchangeable within class for many designs.
Representative Capacitors We Source
| Part Number | Brand | Type | Key Spec |
|---|---|---|---|
| UHE1V102MHD6 | Nichicon | Radial, Low ESR (UHE) | 1000 µF, 35 V, 105 °C, high ripple |
| UPM1E471MPD | Nichicon | Radial, Long Life (UPM) | 470 µF, 25 V, 105 °C |
| 25ZLH1000MEFC10X23 | Rubycon | Radial, Low ESR (ZLH) | 1000 µF, 25 V, 105 °C, low impedance |
| 10YXG1000MEFC8X16 | Rubycon | Radial, Low Impedance (YXG) | 1000 µF, 10 V, 105 °C |
| EEUFC1E102 | Panasonic | Radial, Low ESR (FC) | 1000 µF, 25 V, 105 °C |
| EEUFM1E102 | Panasonic | Radial, Low Impedance (FM) | 1000 µF, 25 V, 105 °C |
| UUD1V221MNL1GS | Nichicon | SMD V-Chip (UUD) | 220 µF, 35 V, 105 °C |
| EEEFK1E102P | Panasonic | SMD V-Chip (FK) | 1000 µF, 25 V, 105 °C, low impedance |
| 380LX472M063K022 | Cornell Dubilier | Snap-In (380LX) | 4700 µF, 63 V, high ripple |
| DCMC103U075BC2B | Cornell Dubilier | Screw Terminal (DCMC) | 10 000 µF, 75 V |
Send Us Your Capacitor Requirements
Whether your design calls for a reel of low ESR radial parts or a pallet of screw terminal bus capacitors, ADD Components can supply the exact aluminum electrolytic capacitors you need. Send us the series, capacitance, voltage, ESR and ripple requirements together with your target quantity and delivery schedule, and our procurement team will return pricing, availability and lead time. We support production volumes, scheduled releases and wholesale requirements for distributors, EMS providers and OEMs.
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Last updated on August 24, 2026