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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
ImageData
Sheet		Part NumberManufacturerDescriptionCategoryDevice PackageVoltageOperating
Temp		Additional SpecificationsQtyGet A
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LKS1H182MESY
LKS1H182MESYNichiconCAP ALUM 1800UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
1.8 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:
1.6 A @ 120 Hz
Size / Dimension:
25 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
956
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LKS1H183MESC
LKS1H183MESCNichiconCAP ALUM 18000UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
18 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:
4.9 A @ 120 Hz
Size / Dimension:
50 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,492
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LKS1H222MESA
LKS1H222MESANichiconCAP ALUM 2200UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
2.2 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:
1.75 A @ 120 Hz
Size / Dimension:
20 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,042
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LKS1H222MESY
LKS1H222MESYNichiconCAP ALUM 2200UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
2.2 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:
1.75 A @ 120 Hz
Size / Dimension:
30 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,635
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LKS1H222MESZ
LKS1H222MESZNichiconCAP ALUM 2200UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
2.2 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:
1.75 A @ 120 Hz
Size / Dimension:
25 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,822
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LKS1H272MESB
LKS1H272MESBNichiconCAP ALUM 2700UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
2.7 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:
1.9 A @ 120 Hz
Size / Dimension:
20 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,130
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LKS1H332MESA
LKS1H332MESANichiconCAP ALUM 3300UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
3.3 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:
2.15 A @ 120 Hz
Size / Dimension:
25 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,508
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LKS1H332MESY
LKS1H332MESYNichiconCAP ALUM 3300UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 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:
2.15 A @ 120 Hz
Size / Dimension:
35 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
852
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LKS1H332MESZ
LKS1H332MESZNichiconCAP ALUM 3300UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 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:
2.15 A @ 120 Hz
Size / Dimension:
30 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,230
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LKS1H392MESA
LKS1H392MESANichiconCAP ALUM 3900UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
3.9 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:
2.3 A @ 120 Hz
Size / Dimension:
30 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,118
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LKS1H392MESC
LKS1H392MESCNichiconCAP ALUM 3900UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
3.9 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:
2.3 A @ 120 Hz
Size / Dimension:
20 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,937
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LKS1H392MESY
LKS1H392MESYNichiconCAP ALUM 3900UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
3.9 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:
2.3 A @ 120 Hz
Size / Dimension:
40 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
741
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LKS1H392MESZ
LKS1H392MESZNichiconCAP ALUM 3900UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
3.9 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:
2.3 A @ 120 Hz
Size / Dimension:
35 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
714
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LKS1H472MESB
LKS1H472MESBNichiconCAP ALUM 4700UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
4.7 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:
2.55 A @ 120 Hz
Size / Dimension:
25 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,336
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LKS1H472MESY
LKS1H472MESYNichiconCAP ALUM 4700UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
4.7 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:
2.55 A @ 120 Hz
Size / Dimension:
50 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,242
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LKS1H472MESZ
LKS1H472MESZNichiconCAP ALUM 4700UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 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:
2.55 A @ 120 Hz
Size / Dimension:
40 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,979
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LKS1H562MESA
LKS1H562MESANichiconCAP ALUM 5600UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 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:
2.8 A @ 120 Hz
Size / Dimension:
35 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,940
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QUOTE
LKS1H562MESB
LKS1H562MESBNichiconCAP ALUM 5600UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
5.6 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:
2.8 A @ 120 Hz
Size / Dimension:
30 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,765
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QUOTE
LKS1H562MESZ
LKS1H562MESZNichiconCAP ALUM 5600UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
5.6 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:
2.8 A @ 120 Hz
Size / Dimension:
45 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,325
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LKS1H682MESA
LKS1H682MESANichiconCAP ALUM 6800UF ±20% 50V SNAP-INAluminum Electrolytic CapacitorsN/A50 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:
3.15 A @ 120 Hz
Size / Dimension:
45 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,352
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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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