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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
 | UCY2E151MHD | Nichicon | CAP ALUM 150UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 150 µF ESR: N/A Height Seated (Max): 2.65 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 1.94 A @ 100 kHz Ripple Current Low Frequency: 970 mA @ 120 Hz Size / Dimension: 25 x 18 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 744 | ||
| UCY2E151MHD6 | Nichicon | CAP ALUM 150UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 150 µF ESR: N/A Height Seated (Max): 4.15 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 1.98 A @ 100 kHz Ripple Current Low Frequency: 990 mA @ 120 Hz Size / Dimension: 40 x 12.5 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,412 | ||
| UCY2E181MHD | Nichicon | CAP ALUM 180UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 180 µF ESR: N/A Height Seated (Max): 3.2 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 2.22 A @ 100 kHz Ripple Current Low Frequency: 1.11 A @ 120 Hz Size / Dimension: 30.5 x 16 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 788 | ||
| UCY2E181MHD6 | Nichicon | CAP ALUM 180UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 180 µF ESR: N/A Height Seated (Max): 2.65 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 2.1 A @ 100 kHz Ripple Current Low Frequency: 1.05 A @ 120 Hz Size / Dimension: 25 x 18 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,421 | ||
| UCY2E220MPD | Nichicon | CAP ALUM 22UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 22 µF ESR: N/A Height Seated (Max): 1.75 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 10000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 450 mA @ 100 kHz Ripple Current Low Frequency: 225 mA @ 120 Hz Size / Dimension: 16 x 10 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,556 | ||
| UCY2E221MHD | Nichicon | CAP ALUM 220UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 220 µF ESR: N/A Height Seated (Max): 4.15 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 2.59 A @ 100 kHz Ripple Current Low Frequency: 1.295 A @ 120 Hz Size / Dimension: 40 x 16 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 973 | ||
| UCY2E221MHD3 | Nichicon | CAP ALUM 220UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 220 µF ESR: N/A Height Seated (Max): 3.2 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 2.32 A @ 100 kHz Ripple Current Low Frequency: 1.16 A @ 120 Hz Size / Dimension: 30.5 x 18 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 534 | ||
| UCY2E221MHD9 | Nichicon | CAP ALUM 220UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 220 µF ESR: N/A Height Seated (Max): 3.7 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 2.44 A @ 100 kHz Ripple Current Low Frequency: 1.22 A @ 120 Hz Size / Dimension: 35.5 x 16 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,221 | ||
| UCY2E270MPD | Nichicon | CAP ALUM 27UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 27 µF ESR: N/A Height Seated (Max): 2.15 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 10000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 510 mA @ 100 kHz Ripple Current Low Frequency: 255 mA @ 120 Hz Size / Dimension: 20 x 10 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,495 | ||
| UCY2E271MHD | Nichicon | CAP ALUM 270UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 270 µF ESR: N/A Height Seated (Max): 3.7 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 2.9 A @ 100 kHz Ripple Current Low Frequency: 1.45 A @ 120 Hz Size / Dimension: 35.5 x 18 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,635 | ||
| UCY2E271MHD6 | Nichicon | CAP ALUM 270UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 270 µF ESR: N/A Height Seated (Max): 4.15 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 2.7 A @ 100 kHz Ripple Current Low Frequency: 1.35 A @ 120 Hz Size / Dimension: 40 x 16 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,674 | ||
| UCY2E330MHD3 | Nichicon | CAP ALUM 33UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 33 µF ESR: N/A Height Seated (Max): 2.15 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 10000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 800 mA @ 100 kHz Ripple Current Low Frequency: 400 mA @ 120 Hz Size / Dimension: 20 x 12.5 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,649 | ||
| UCY2E330MPD | Nichicon | CAP ALUM 33UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 33 µF ESR: N/A Height Seated (Max): 2.15 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 10000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 610 mA @ 100 kHz Ripple Current Low Frequency: 305 mA @ 120 Hz Size / Dimension: 20 x 10 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,517 | ||
| UCY2E331MHD | Nichicon | CAP ALUM 330UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 330 µF ESR: N/A Height Seated (Max): 4.75 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 3.2 A @ 100 kHz Ripple Current Low Frequency: 1.6 A @ 120 Hz Size / Dimension: 46 x 18 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,314 | ||
| UCY2E331MHD9 | Nichicon | CAP ALUM 330UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 330 µF ESR: N/A Height Seated (Max): 4.15 cm Impedance: N/A Lead Spacing: 7.5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 3.06 A @ 100 kHz Ripple Current Low Frequency: 1.53 A @ 120 Hz Size / Dimension: 40 x 18 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,482 | ||
| UCY2E390MPD | Nichicon | CAP ALUM 39UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 39 µF ESR: N/A Height Seated (Max): 2.65 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 690 mA @ 100 kHz Ripple Current Low Frequency: 345 mA @ 120 Hz Size / Dimension: 25 x 10 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,756 | ||
| UCY2E470MHD3 | Nichicon | CAP ALUM 47UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 47 µF ESR: N/A Height Seated (Max): 2.15 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 10000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 980 mA @ 100 kHz Ripple Current Low Frequency: 490 mA @ 120 Hz Size / Dimension: 20 x 12.5 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 572 | ||
| UCY2E470MPD | Nichicon | CAP ALUM 47UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 47 µF ESR: N/A Height Seated (Max): 3.2 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 810 mA @ 100 kHz Ripple Current Low Frequency: 405 mA @ 120 Hz Size / Dimension: 30.5 x 10 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 599 | ||
| UCY2E470MPD9 | Nichicon | CAP ALUM 47UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 47 µF ESR: N/A Height Seated (Max): 2.65 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 12000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 690 mA @ 100 kHz Ripple Current Low Frequency: 345 mA @ 120 Hz Size / Dimension: 25 x 10 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 1,994 | ||
| UCY2E560MHD | Nichicon | CAP ALUM 56UF ±20% 250V RADIAL | Aluminum Electrolytic Capacitors | N/A | 250 V | -40°C - 105°C | Applications: Automotive Capacitance: 56 µF ESR: N/A Height Seated (Max): 2.15 cm Impedance: N/A Lead Spacing: 5 mm Lifetime @ Temp: 10000 h @ 105°C Polarization: Polar Ratings: AEC-Q200 Ripple Current High Frequency: 1.03 A @ 100 kHz Ripple Current Low Frequency: 515 mA @ 120 Hz Size / Dimension: 20 x 12.5 mm Surface Mount Land Size: N/A Tolerance: -20%~20% | 671 |
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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