Aluminum Electrolytic Capacitors

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.

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Total Products: 14,103
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Sheet
Part NumberManufacturerDescriptionCategoryDevice PackageVoltageOperating
Temp
Additional SpecificationsQtyGet A
Quote
UCY2H220MHD3UCY2H220MHD3NichiconCAP ALUM 22UF ±20% 500V RADIALAluminum Electrolytic CapacitorsN/A500 V-40°C - 105°C
Applications:
Automotive
Capacitance:
22 µF
ESR:
N/A
Height Seated (Max):
2.15 cm
Impedance:
N/A
Lead Spacing:
7.5 mm
Lifetime @ Temp:
10000 h @ 105°C
Polarization:
Polar
Ratings:
AEC-Q200
Ripple Current High Frequency:
560 mA @ 100 kHz
Ripple Current Low Frequency:
280 mA @ 120 Hz
Size / Dimension:
20 x 18 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,743
UCY2H220MHD6UCY2H220MHD6NichiconCAP ALUM 22UF ±20% 500V RADIALAluminum Electrolytic CapacitorsN/A500 V-40°C - 105°C
Applications:
Automotive
Capacitance:
22 µF
ESR:
N/A
Height Seated (Max):
2.65 cm
Impedance:
N/A
Lead Spacing:
7.5 mm
Lifetime @ Temp:
10000 h @ 105°C
Polarization:
Polar
Ratings:
AEC-Q200
Ripple Current High Frequency:
560 mA @ 100 kHz
Ripple Current Low Frequency:
280 mA @ 120 Hz
Size / Dimension:
25 x 16 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,135
UCY2H270MHDUCY2H270MHDNichiconCAP ALUM 27UF ±20% 500V RADIALAluminum Electrolytic CapacitorsN/A500 V-40°C - 105°C
Applications:
Automotive
Capacitance:
27 µF
ESR:
N/A
Height Seated (Max):
4.15 cm
Impedance:
N/A
Lead Spacing:
5 mm
Lifetime @ Temp:
10000 h @ 105°C
Polarization:
Polar
Ratings:
AEC-Q200
Ripple Current High Frequency:
620 mA @ 100 kHz
Ripple Current Low Frequency:
310 mA @ 120 Hz
Size / Dimension:
40 x 12.5 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,084
UCY2H270MHD6UCY2H270MHD6NichiconCAP ALUM 27UF ±20% 500V RADIALAluminum Electrolytic CapacitorsN/A500 V-40°C - 105°C
Applications:
Automotive
Capacitance:
27 µF
ESR:
N/A
Height Seated (Max):
2.65 cm
Impedance:
N/A
Lead Spacing:
7.5 mm
Lifetime @ Temp:
10000 h @ 105°C
Polarization:
Polar
Ratings:
AEC-Q200
Ripple Current High Frequency:
620 mA @ 100 kHz
Ripple Current Low Frequency:
310 mA @ 120 Hz
Size / Dimension:
25 x 16 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
851
UCY2H330MHDUCY2H330MHDNichiconCAP ALUM 33UF ±20% 500V RADIALAluminum Electrolytic CapacitorsN/A500 V-40°C - 105°C
Applications:
Automotive
Capacitance:
33 µF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
7.5 mm
Lifetime @ Temp:
10000 h @ 105°C
Polarization:
Polar
Ratings:
AEC-Q200
Ripple Current High Frequency:
700 mA @ 100 kHz
Ripple Current Low Frequency:
350 mA @ 120 Hz
Size / Dimension:
30.5 x 16 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
915
UCY2H330MHD3UCY2H330MHD3NichiconCAP ALUM 33UF ±20% 500V RADIALAluminum Electrolytic CapacitorsN/A500 V-40°C - 105°C
Applications:
Automotive
Capacitance:
33 µF
ESR:
N/A
Height Seated (Max):
2.65 cm
Impedance:
N/A
Lead Spacing:
7.5 mm
Lifetime @ Temp:
10000 h @ 105°C
Polarization:
Polar
Ratings:
AEC-Q200
Ripple Current High Frequency:
700 mA @ 100 kHz
Ripple Current Low Frequency:
350 mA @ 120 Hz
Size / Dimension:
25 x 18 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,365
UCY2H390MHDUCY2H390MHDNichiconCAP ALUM 39UF ±20% 500V RADIALAluminum Electrolytic CapacitorsN/A500 V-40°C - 105°C
Applications:
Automotive
Capacitance:
39 µF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
7.5 mm
Lifetime @ Temp:
10000 h @ 105°C
Polarization:
Polar
Ratings:
AEC-Q200
Ripple Current High Frequency:
760 mA @ 100 kHz
Ripple Current Low Frequency:
380 mA @ 120 Hz
Size / Dimension:
35.5 x 16 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,099
UCY2H470MHDUCY2H470MHDNichiconCAP ALUM 47UF ±20% 500V RADIALAluminum Electrolytic CapacitorsN/A500 V-40°C - 105°C
Applications:
Automotive
Capacitance:
47 µF
ESR:
N/A
Height Seated (Max):
4.15 cm
Impedance:
N/A
Lead Spacing:
7.5 mm
Lifetime @ Temp:
10000 h @ 105°C
Polarization:
Polar
Ratings:
AEC-Q200
Ripple Current High Frequency:
880 mA @ 100 kHz
Ripple Current Low Frequency:
440 mA @ 120 Hz
Size / Dimension:
40 x 16 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
534
UCY2H470MHD6UCY2H470MHD6NichiconCAP ALUM 47UF ±20% 500V RADIALAluminum Electrolytic CapacitorsN/A500 V-40°C - 105°C
Applications:
Automotive
Capacitance:
47 µF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
7.5 mm
Lifetime @ Temp:
10000 h @ 105°C
Polarization:
Polar
Ratings:
AEC-Q200
Ripple Current High Frequency:
880 mA @ 100 kHz
Ripple Current Low Frequency:
440 mA @ 120 Hz
Size / Dimension:
30.5 x 18 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
726
UCY2H560MHDUCY2H560MHDNichiconCAP ALUM 56UF ±20% 500V RADIALAluminum Electrolytic CapacitorsN/A500 V-40°C - 105°C
Applications:
Automotive
Capacitance:
56 µF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
7.5 mm
Lifetime @ Temp:
10000 h @ 105°C
Polarization:
Polar
Ratings:
AEC-Q200
Ripple Current High Frequency:
960 mA @ 100 kHz
Ripple Current Low Frequency:
480 mA @ 120 Hz
Size / Dimension:
35.5 x 18 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
653
UCY2H680MHDUCY2H680MHDNichiconCAP ALUM 68UF ±20% 500V RADIALAluminum Electrolytic CapacitorsN/A500 V-40°C - 105°C
Applications:
Automotive
Capacitance:
68 µF
ESR:
N/A
Height Seated (Max):
4.15 cm
Impedance:
N/A
Lead Spacing:
7.5 mm
Lifetime @ Temp:
10000 h @ 105°C
Polarization:
Polar
Ratings:
AEC-Q200
Ripple Current High Frequency:
1.05 A @ 100 kHz
Ripple Current Low Frequency:
525 mA @ 120 Hz
Size / Dimension:
40 x 18 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,048
UCY2V101MHDUCY2V101MHDNichiconCAP ALUM 100UF ±20% 350V RADIALAluminum Electrolytic CapacitorsN/A350 V-40°C - 105°C
Applications:
Automotive
Capacitance:
100 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:
1.65 A @ 100 kHz
Ripple Current Low Frequency:
825 mA @ 120 Hz
Size / Dimension:
30.5 x 16 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
672
UCY2V101MHD3UCY2V101MHD3NichiconCAP ALUM 100UF ±20% 350V RADIALAluminum Electrolytic CapacitorsN/A350 V-40°C - 105°C
Applications:
Automotive
Capacitance:
100 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:
1.58 A @ 100 kHz
Ripple Current Low Frequency:
790 mA @ 120 Hz
Size / Dimension:
25 x 18 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
628
UCY2V120MPDUCY2V120MPDNichiconCAP ALUM 12UF ±20% 350V RADIALAluminum Electrolytic CapacitorsN/A350 V-40°C - 105°C
Applications:
Automotive
Capacitance:
12 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:
320 mA @ 100 kHz
Ripple Current Low Frequency:
160 mA @ 120 Hz
Size / Dimension:
16 x 10 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,563
UCY2V121MHDUCY2V121MHDNichiconCAP ALUM 120UF ±20% 350V RADIALAluminum Electrolytic CapacitorsN/A350 V-40°C - 105°C
Applications:
Automotive
Capacitance:
120 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:
1.85 A @ 100 kHz
Ripple Current Low Frequency:
925 mA @ 120 Hz
Size / Dimension:
35.5 x 16 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,150
UCY2V121MHD6UCY2V121MHD6NichiconCAP ALUM 120UF ±20% 350V RADIALAluminum Electrolytic CapacitorsN/A350 V-40°C - 105°C
Applications:
Automotive
Capacitance:
120 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:
1.88 A @ 100 kHz
Ripple Current Low Frequency:
940 mA @ 120 Hz
Size / Dimension:
30.5 x 18 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
937
UCY2V150MPDUCY2V150MPDNichiconCAP ALUM 15UF ±20% 350V RADIALAluminum Electrolytic CapacitorsN/A350 V-40°C - 105°C
Applications:
Automotive
Capacitance:
15 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:
360 mA @ 100 kHz
Ripple Current Low Frequency:
180 mA @ 120 Hz
Size / Dimension:
20 x 10 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,532
UCY2V151MHDUCY2V151MHDNichiconCAP ALUM 150UF ±20% 350V RADIALAluminum Electrolytic CapacitorsN/A350 V-40°C - 105°C
Applications:
Automotive
Capacitance:
150 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:
2.16 A @ 100 kHz
Ripple Current Low Frequency:
1.08 A @ 120 Hz
Size / Dimension:
35.5 x 18 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,334
UCY2V151MHD6UCY2V151MHD6NichiconCAP ALUM 150UF ±20% 350V RADIALAluminum Electrolytic CapacitorsN/A350 V-40°C - 105°C
Applications:
Automotive
Capacitance:
150 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 A @ 100 kHz
Ripple Current Low Frequency:
1 A @ 120 Hz
Size / Dimension:
40 x 16 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,961
UCY2V180MPDUCY2V180MPDNichiconCAP ALUM 18UF ±20% 350V RADIALAluminum Electrolytic CapacitorsN/A350 V-40°C - 105°C
Applications:
Automotive
Capacitance:
18 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:
430 mA @ 100 kHz
Ripple Current Low Frequency:
215 mA @ 120 Hz
Size / Dimension:
20 x 10 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,685

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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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