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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
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LKSA2272MESY
LKSA2272MESYNichiconCAP ALUM 2700UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
2.7 mF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
1.7 A @ 120 Hz
Size / Dimension:
30 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,667
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LKSA2272MESZ
LKSA2272MESZNichiconCAP ALUM 2700UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
2.7 mF
ESR:
N/A
Height Seated (Max):
2.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
1.7 A @ 120 Hz
Size / Dimension:
25 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,723
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LKSA2332MESB
LKSA2332MESBNichiconCAP ALUM 3300UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
3.3 mF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2 A @ 120 Hz
Size / Dimension:
20 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
571
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LKSA2332MESY
LKSA2332MESYNichiconCAP ALUM 3300UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
3.3 mF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2 A @ 120 Hz
Size / Dimension:
35 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,853
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LKSA2332MESZ
LKSA2332MESZNichiconCAP ALUM 3300UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
3.3 mF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2 A @ 120 Hz
Size / Dimension:
30 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,857
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LKSA2392MESA
LKSA2392MESANichiconCAP ALUM 3900UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
3.9 mF
ESR:
N/A
Height Seated (Max):
2.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.25 A @ 120 Hz
Size / Dimension:
25 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,810
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LKSA2472MESA
LKSA2472MESANichiconCAP ALUM 4700UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
4.7 mF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.5 A @ 120 Hz
Size / Dimension:
30 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,147
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LKSA2472MESC
LKSA2472MESCNichiconCAP ALUM 4700UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
4.7 mF
ESR:
N/A
Height Seated (Max):
2.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.5 A @ 120 Hz
Size / Dimension:
20 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,217
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LKSA2472MESY
LKSA2472MESYNichiconCAP ALUM 4700UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
4.7 mF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.5 A @ 120 Hz
Size / Dimension:
40 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,017
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LKSA2472MESZ
LKSA2472MESZNichiconCAP ALUM 4700UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
4.7 mF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.5 A @ 120 Hz
Size / Dimension:
35 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,307
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LKSA2562MESA
LKSA2562MESANichiconCAP ALUM 5600UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
5.6 mF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.7 A @ 120 Hz
Size / Dimension:
35 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,122
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LKSA2562MESB
LKSA2562MESBNichiconCAP ALUM 5600UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
5.6 mF
ESR:
N/A
Height Seated (Max):
2.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.7 A @ 120 Hz
Size / Dimension:
25 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,385
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LKSA2562MESY
LKSA2562MESYNichiconCAP ALUM 5600UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
5.6 mF
ESR:
N/A
Height Seated (Max):
5.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.7 A @ 120 Hz
Size / Dimension:
50 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,624
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QUOTE
LKSA2562MESZ
LKSA2562MESZNichiconCAP ALUM 5600UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
5.6 mF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.7 A @ 120 Hz
Size / Dimension:
40 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
702
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LKSA2682MESA
LKSA2682MESANichiconCAP ALUM 6800UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
6.8 mF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.9 A @ 120 Hz
Size / Dimension:
40 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,823
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LKSA2682MESB
LKSA2682MESBNichiconCAP ALUM 6800UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
6.8 mF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.9 A @ 120 Hz
Size / Dimension:
30 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,457
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LKSA2682MESC
LKSA2682MESCNichiconCAP ALUM 6800UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
6.8 mF
ESR:
N/A
Height Seated (Max):
2.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.9 A @ 120 Hz
Size / Dimension:
25 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,135
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LKSA2682MESZ
LKSA2682MESZNichiconCAP ALUM 6800UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
6.8 mF
ESR:
N/A
Height Seated (Max):
4.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
2.9 A @ 120 Hz
Size / Dimension:
45 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
738
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LKSA2822MESA
LKSA2822MESANichiconCAP ALUM 8200UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
8.2 mF
ESR:
N/A
Height Seated (Max):
4.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
3.2 A @ 120 Hz
Size / Dimension:
45 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,790
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QUOTE
LKSA2822MESB
LKSA2822MESBNichiconCAP ALUM 8200UF ±20% 42V SNAP-INAluminum Electrolytic CapacitorsN/A42 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
8.2 mF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
1000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
N/A
Ripple Current Low Frequency:
3.2 A @ 120 Hz
Size / Dimension:
35 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
709
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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.

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.

























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