10,000+ Happy Customers
20+ Years in Business
75,000+ SKUs in Stock
80+ Authorized Manufacturers
Helping Tech Companies Create What’s Next!
phoneCall +1.949.783.7300
Suntsu Electronics Logo - suntsu.com
GET A
QUOTE

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.

Part Search

CLEAR SEARCH
Total Products: 14,103
ImageData
Sheet		Part NumberManufacturerDescriptionCategoryDevice PackageVoltageOperating
Temp		Additional SpecificationsQtyGet A
Quote
LAK2G330MELZ20
LAK2G330MELZ20NichiconCAP ALUM 33UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
33 µF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
253 mA @ 10 kHz
Ripple Current Low Frequency:
220 mA @ 120 Hz
Size / Dimension:
20 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
766
GET A
QUOTE
LAK2G330MELZ20ZB
LAK2G330MELZ20ZBNichiconCAP ALUM 33UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
33 µF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
253 mA @ 10 kHz
Ripple Current Low Frequency:
220 mA @ 120 Hz
Size / Dimension:
20 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,140
GET A
QUOTE
LAK2G331MELB50
LAK2G331MELB50NichiconCAP ALUM 330UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
330 µF
ESR:
N/A
Height Seated (Max):
5.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
1.391 A @ 10 kHz
Ripple Current Low Frequency:
1.21 A @ 120 Hz
Size / Dimension:
50 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
631
GET A
QUOTE
LAK2G331MELB50ZB
LAK2G331MELB50ZBNichiconCAP ALUM 330UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
330 µF
ESR:
N/A
Height Seated (Max):
5.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
1.391 A @ 10 kHz
Ripple Current Low Frequency:
1.21 A @ 120 Hz
Size / Dimension:
50 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
564
GET A
QUOTE
LAK2G331MELC40
LAK2G331MELC40NichiconCAP ALUM 330UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
330 µF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
1.391 A @ 10 kHz
Ripple Current Low Frequency:
1.21 A @ 120 Hz
Size / Dimension:
40 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
787
GET A
QUOTE
LAK2G331MELC40ZB
LAK2G331MELC40ZBNichiconCAP ALUM 330UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
330 µF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
1.391 A @ 10 kHz
Ripple Current Low Frequency:
1.21 A @ 120 Hz
Size / Dimension:
40 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,905
GET A
QUOTE
LAK2G390MELZ20
LAK2G390MELZ20NichiconCAP ALUM 39UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
39 µF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
345 mA @ 100 kHz
Ripple Current Low Frequency:
300 mA @ 120 Hz
Size / Dimension:
20 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
777
GET A
QUOTE
LAK2G390MELZ20ZB
LAK2G390MELZ20ZBNichiconCAP ALUM 39UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
39 µF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
345 mA @ 10 kHz
Ripple Current Low Frequency:
300 mA @ 120 Hz
Size / Dimension:
20 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,635
GET A
QUOTE
LAK2G391MELC45
LAK2G391MELC45NichiconCAP ALUM 390UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
390 µF
ESR:
N/A
Height Seated (Max):
4.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
1.518 A @ 10 kHz
Ripple Current Low Frequency:
1.32 A @ 120 Hz
Size / Dimension:
45 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,920
GET A
QUOTE
LAK2G391MELC45ZB
LAK2G391MELC45ZBNichiconCAP ALUM 390UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
390 µF
ESR:
N/A
Height Seated (Max):
4.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
1.518 A @ 10 kHz
Ripple Current Low Frequency:
1.32 A @ 120 Hz
Size / Dimension:
45 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
617
GET A
QUOTE
LAK2G470MELA20
LAK2G470MELA20NichiconCAP ALUM 47UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
47 µF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
402.5 mA @ 10 kHz
Ripple Current Low Frequency:
350 mA @ 120 Hz
Size / Dimension:
20 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,037
GET A
QUOTE
LAK2G470MELA20ZB
LAK2G470MELA20ZBNichiconCAP ALUM 47UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
47 µF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
402.5 mA @ 10 kHz
Ripple Current Low Frequency:
350 mA @ 120 Hz
Size / Dimension:
20 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,449
GET A
QUOTE
LAK2G470MELB20
LAK2G470MELB20NichiconCAP ALUM 47UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
47 µF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
460 mA @ 10 kHz
Ripple Current Low Frequency:
400 mA @ 120 Hz
Size / Dimension:
20 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,916
GET A
QUOTE
LAK2G470MELB20ZB
LAK2G470MELB20ZBNichiconCAP ALUM 47UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
47 µF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
460 mA @ 10 kHz
Ripple Current Low Frequency:
400 mA @ 120 Hz
Size / Dimension:
20 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
533
GET A
QUOTE
LAK2G470MELZ25
LAK2G470MELZ25NichiconCAP ALUM 47UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
47 µF
ESR:
N/A
Height Seated (Max):
2.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
402.5 mA @ 10 kHz
Ripple Current Low Frequency:
350 mA @ 120 Hz
Size / Dimension:
25 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
646
GET A
QUOTE
LAK2G470MELZ25ZB
LAK2G470MELZ25ZBNichiconCAP ALUM 47UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
47 µF
ESR:
N/A
Height Seated (Max):
2.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
402.5 mA @ 10 kHz
Ripple Current Low Frequency:
350 mA @ 120 Hz
Size / Dimension:
25 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
768
GET A
QUOTE
LAK2G471MELC50
LAK2G471MELC50NichiconCAP ALUM 470UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
470 µF
ESR:
N/A
Height Seated (Max):
5.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
1.667 A @ 10 kHz
Ripple Current Low Frequency:
1.45 A @ 120 Hz
Size / Dimension:
50 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
687
GET A
QUOTE
LAK2G471MELC50ZB
LAK2G471MELC50ZBNichiconCAP ALUM 470UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
470 µF
ESR:
N/A
Height Seated (Max):
5.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
1.667 A @ 10 kHz
Ripple Current Low Frequency:
1.45 A @ 120 Hz
Size / Dimension:
50 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
862
GET A
QUOTE
LAK2G560MELA20
LAK2G560MELA20NichiconCAP ALUM 56UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
56 µF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
437 mA @ 10 kHz
Ripple Current Low Frequency:
380 mA @ 120 Hz
Size / Dimension:
20 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,585
GET A
QUOTE
LAK2G560MELA20ZB
LAK2G560MELA20ZBNichiconCAP ALUM 56UF ±20% 400V SNAP-INAluminum Electrolytic CapacitorsN/A400 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
56 µF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
437 mA @ 10 kHz
Ripple Current Low Frequency:
380 mA @ 120 Hz
Size / Dimension:
20 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,709
GET A
QUOTE

Featured Brands

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.

We’ve Got You Covered!

If you can’t find the parts you’re looking for in our database, don’t worry! We’re here to help. Simply fill out the form below with the part number you need and your contact information, and we’ll locate it for you. If you prefer to speak to someone directly, our sales team is available at 949.783.7300.

























    I agree to receive newsletters and promotional emails. I can unsubscribe at any time.


























      I agree to receive newsletters and promotional emails. I can unsubscribe at any time.


      See What We Have to Offer!

      keyboard_arrow_up