Find the right aluminum electrolytic capacitor for your power design. Our catalog covers surface-mount (SMD) and radial-lead capacitors for board-level designs, as well as snap-in and screw-terminal capacitors for high-power equipment. Contact our team for help sourcing standard, long-life and hard-to-find parts.
Aluminum Electrolytic Capacitors
Total Products: 14,103
| Image | Data Sheet | Part Number | Manufacturer | Description | Category | Device Package | Voltage | Operating Temp | Additional Specifications | Qty | Get A Quote |
|---|---|---|---|---|---|---|---|---|---|---|---|
 | UPJ2A180MED | Nichicon | CAP ALUM 18UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 18 µF ESR: N/A Height Seated (Max): 1.65 cm Impedance: N/A Lead Spacing: 2.5 mm Lifetime @ Temp: 2000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 80 mA @ 200 kHz Ripple Current Low Frequency: 40 mA @ 120 Hz Size / Dimension: 15 x 6.3 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,818 | ||
| UPJ2A181MHD | Nichicon | CAP ALUM 180UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 180 µF ESR: N/A Height Seated (Max): 3.2 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 641 mA @ 200 kHz Ripple Current Low Frequency: 346.1 mA @ 120 Hz Size / Dimension: 30.5 x 12.5 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,333 | ||
| UPJ2A181MHD6 | Nichicon | CAP ALUM 180UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 180 µF ESR: N/A Height Seated (Max): 2.15 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 706 mA @ 200 kHz Ripple Current Low Frequency: 381.2 mA @ 120 Hz Size / Dimension: 20 x 16 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 886 | ||
| UPJ2A220MPD | Nichicon | CAP ALUM 22UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 22 µF ESR: N/A Height Seated (Max): 1.3 cm Impedance: N/A Lead Spacing: 3.5 mm Lifetime @ Temp: 3000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 122 mA @ 200 kHz Ripple Current Low Frequency: 61 mA @ 120 Hz Size / Dimension: 11.5 x 8 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 925 | ||
| UPJ2A221MHD | Nichicon | CAP ALUM 220UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 220 µF ESR: N/A Height Seated (Max): 3.7 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 730 mA @ 200 kHz Ripple Current Low Frequency: 408.8 mA @ 120 Hz Size / Dimension: 35.5 x 12.5 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,056 | ||
| UPJ2A221MHD6 | Nichicon | CAP ALUM 220UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 220 µF ESR: N/A Height Seated (Max): 2.65 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 854 mA @ 200 kHz Ripple Current Low Frequency: 478.2 mA @ 120 Hz Size / Dimension: 25 x 16 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 683 | ||
| UPJ2A270MPD | Nichicon | CAP ALUM 27UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 27 µF ESR: N/A Height Seated (Max): 1.65 cm Impedance: N/A Lead Spacing: 3.5 mm Lifetime @ Temp: 3000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 146 mA @ 200 kHz Ripple Current Low Frequency: 73 mA @ 120 Hz Size / Dimension: 15 x 8 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 985 | ||
| UPJ2A270MPD6 | Nichicon | CAP ALUM 27UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 27 µF ESR: N/A Height Seated (Max): 1.4 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 145 mA @ 200 kHz Ripple Current Low Frequency: 72.5 mA @ 120 Hz Size / Dimension: 12.5 x 10 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,869 | ||
| UPJ2A271MHD | Nichicon | CAP ALUM 270UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 270 µF ESR: N/A Height Seated (Max): 4.15 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 843 mA @ 200 kHz Ripple Current Low Frequency: 480.5 mA @ 120 Hz Size / Dimension: 40 x 12.5 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 772 | ||
| UPJ2A271MHD6 | Nichicon | CAP ALUM 270UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 270 µF ESR: N/A Height Seated (Max): 2.15 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 918 mA @ 200 kHz Ripple Current Low Frequency: 523.3 mA @ 120 Hz Size / Dimension: 20 x 18 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 789 | ||
| UPJ2A2R2MDD | Nichicon | CAP ALUM 2.2UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 2.2 µF ESR: N/A Height Seated (Max): 1.25 cm Impedance: N/A Lead Spacing: 2 mm Lifetime @ Temp: 2000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 21 mA @ 1 kHz Ripple Current Low Frequency: 10.5 mA @ 120 Hz Size / Dimension: 11 x 5 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,389 | ||
| UPJ2A330MPD | Nichicon | CAP ALUM 33UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 33 µF ESR: N/A Height Seated (Max): 1.65 cm Impedance: N/A Lead Spacing: 3.5 mm Lifetime @ Temp: 3000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 169 mA @ 200 kHz Ripple Current Low Frequency: 84.5 mA @ 120 Hz Size / Dimension: 15 x 8 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,610 | ||
| UPJ2A330MPD6 | Nichicon | CAP ALUM 33UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 33 µF ESR: N/A Height Seated (Max): 1.4 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 166 mA @ 200 kHz Ripple Current Low Frequency: 83 mA @ 120 Hz Size / Dimension: 12.5 x 10 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,331 | ||
| UPJ2A331MHD | Nichicon | CAP ALUM 330UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 330 µF ESR: N/A Height Seated (Max): 3.2 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 1.16 A @ 200 kHz Ripple Current Low Frequency: 672.8 mA @ 120 Hz Size / Dimension: 30.5 x 16 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,790 | ||
| UPJ2A331MHD6 | Nichicon | CAP ALUM 330UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 330 µF ESR: N/A Height Seated (Max): 2.65 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 1.08 A @ 200 kHz Ripple Current Low Frequency: 626.4 mA @ 120 Hz Size / Dimension: 25 x 18 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,587 | ||
| UPJ2A390MPD | Nichicon | CAP ALUM 39UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 39 µF ESR: N/A Height Seated (Max): 2.15 cm Impedance: N/A Lead Spacing: 3.5 mm Lifetime @ Temp: 3000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 202 mA @ 200 kHz Ripple Current Low Frequency: 103 mA @ 120 Hz Size / Dimension: 20 x 8 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,879 | ||
| UPJ2A390MPD6 | Nichicon | CAP ALUM 39UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 39 µF ESR: N/A Height Seated (Max): 1.75 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 193 mA @ 1 kHz Ripple Current Low Frequency: 98.43 mA @ 120 Hz Size / Dimension: 16 x 10 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 741 | ||
| UPJ2A391MHD | Nichicon | CAP ALUM 390UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 390 µF ESR: N/A Height Seated (Max): 3.7 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 1.34 A @ 200 kHz Ripple Current Low Frequency: 804 mA @ 120 Hz Size / Dimension: 35.5 x 16 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 677 | ||
| UPJ2A391MHD6 | Nichicon | CAP ALUM 390UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 390 µF ESR: N/A Height Seated (Max): 3.2 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 5000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 1.24 A @ 200 kHz Ripple Current Low Frequency: 744 mA @ 120 Hz Size / Dimension: 30.5 x 18 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,636 | ||
| UPJ2A3R3MDD | Nichicon | CAP ALUM 3.3UF ±20% 100V RADIAL | Aluminum Electrolytic Capacitors | N/A | 100 V | -55°C - 105°C | Applications: General Purpose Capacitance: 3.3 µF ESR: N/A Height Seated (Max): 1.25 cm Impedance: N/A Lead Spacing: 2 mm Lifetime @ Temp: 2000 h @ 105°C Polarization: Polar Ratings: N/A Ripple Current High Frequency: 27 mA @ 200 kHz Ripple Current Low Frequency: 13.5 mA @ 120 Hz Size / Dimension: 11 x 5 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 988 |
About Aluminum Electrolytic Capacitors
Aluminum electrolytic capacitors offer the most capacitance for the cost of any common capacitor type, which makes them the standard choice for bulk energy storage and filtering in power circuits. An etched aluminum foil with a thin oxide layer and an electrolyte packs high capacitance into a compact can, at voltages from low-voltage logic rails to high-voltage power stages.
Because they are polarized and their electrolyte ages with heat, the ratings that matter most are capacitance, voltage, ripple current, temperature and rated lifetime. Series differ mainly in how they balance these: long-life series for equipment that runs hot around the clock, low-ESR series for switching power supplies, and automotive-grade and audio-grade series for their specialized requirements. Suntsu sources these capacitors alongside our timing devices and integrated circuits for automotive, industrial and power applications.
Common Applications of Aluminum Electrolytic Capacitors
- Power supply filtering: smoothing rectified DC and holding up output rails in AC-DC and DC-DC converters
- DC link and bulk storage: snap-in and screw-terminal capacitors in inverters, motor drives, UPS and solar systems
- Automotive electronics: automotive-grade series for engine control units, lighting and infotainment
- Audio equipment: audio-grade capacitors for amplifier power supplies and signal coupling
- Industrial and lighting: LED drivers, welding equipment and industrial controls that need high capacitance at high voltage
How to Choose the Right Aluminum Electrolytic Capacitor
Selecting the right aluminum electrolytic capacitor comes down to four key specifications:
Capacitance and Voltage: Match the µF value to your filtering or hold-up needs, and choose a rated voltage with headroom above your circuit’s maximum voltage, including ripple peaks.
Ripple Current and ESR: Make sure the rated ripple current covers the AC current the capacitor will carry. Low-ESR series run cooler in switching power supplies.
Temperature and Lifetime: Lifetime roughly doubles for every 10°C below the rated temperature, so pick a temperature rating and hour rating that suit how hot and how long your product will run.
Mounting Type and Size: Choose SMD or radial lead for board-level designs, snap-in for higher-power boards and screw terminal for chassis-mounted power equipment. Confirm the diameter and height fit your layout.
Check each product’s datasheet to confirm these specs align with your design before ordering.
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