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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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LKX2W181MESZ50
LKX2W181MESZ50NichiconCAP ALUM 180UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
180 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:
1.244 A @ 50 kHz
Ripple Current Low Frequency:
870 mA @ 120 Hz
Size / Dimension:
50 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,319
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LKX2W221MESA45
LKX2W221MESA45NichiconCAP ALUM 220UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
220 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:
1.502 A @ 50 kHz
Ripple Current Low Frequency:
1.05 A @ 120 Hz
Size / Dimension:
45 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,984
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LKX2W221MESB35
LKX2W221MESB35NichiconCAP ALUM 220UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
220 µF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
1.502 A @ 50 kHz
Ripple Current Low Frequency:
1.05 A @ 120 Hz
Size / Dimension:
35 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
971
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LKX2W271MESB40
LKX2W271MESB40NichiconCAP ALUM 270UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
270 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:
1.759 A @ 50 kHz
Ripple Current Low Frequency:
1.23 A @ 120 Hz
Size / Dimension:
40 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,705
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LKX2W271MESC30
LKX2W271MESC30NichiconCAP ALUM 270UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
270 µF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
1.759 A @ 50 kHz
Ripple Current Low Frequency:
1.23 A @ 120 Hz
Size / Dimension:
30 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,840
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LKX2W331MESB45
LKX2W331MESB45NichiconCAP ALUM 330UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
330 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:
1.973 A @ 50 kHz
Ripple Current Low Frequency:
1.38 A @ 120 Hz
Size / Dimension:
45 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,639
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LKX2W331MESC35
LKX2W331MESC35NichiconCAP ALUM 330UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
330 µF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
1.973 A @ 50 kHz
Ripple Current Low Frequency:
1.38 A @ 120 Hz
Size / Dimension:
35 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
631
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LKX2W391MESC40
LKX2W391MESC40NichiconCAP ALUM 390UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
390 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:
2.302 A @ 50 kHz
Ripple Current Low Frequency:
1.61 A @ 120 Hz
Size / Dimension:
40 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,008
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LKX2W471MESC45
LKX2W471MESC45NichiconCAP ALUM 470UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
470 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:
2.545 A @ 50 kHz
Ripple Current Low Frequency:
1.78 A @ 120 Hz
Size / Dimension:
45 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,174
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LKX2W560MESY25
LKX2W560MESY25NichiconCAP ALUM 56UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
56 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:
629.2 mA @ 50 kHz
Ripple Current Low Frequency:
440 mA @ 120 Hz
Size / Dimension:
25 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
677
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LKX2W561MESC50
LKX2W561MESC50NichiconCAP ALUM 560UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
560 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:
2.846 A @ 50 kHz
Ripple Current Low Frequency:
1.99 A @ 120 Hz
Size / Dimension:
50 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
709
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LKX2W680MESY30
LKX2W680MESY30NichiconCAP ALUM 68UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
68 µF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
715 mA @ 50 kHz
Ripple Current Low Frequency:
500 mA @ 120 Hz
Size / Dimension:
30 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
665
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LKX2W820MESY35
LKX2W820MESY35NichiconCAP ALUM 82UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
82 µF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
915.2 mA @ 50 kHz
Ripple Current Low Frequency:
640 mA @ 120 Hz
Size / Dimension:
35 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,318
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LKX2W820MESZ30
LKX2W820MESZ30NichiconCAP ALUM 82UF ±20% 450V SNAP-INAluminum Electrolytic CapacitorsN/A450 V-25°C - 105°C
Applications:
General Purpose
Capacitance:
82 µF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
915.2 mA @ 50 kHz
Ripple Current Low Frequency:
640 mA @ 120 Hz
Size / Dimension:
30 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
870
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LLG2C102MELA30
LLG2C102MELA30NichiconCAP ALUM 1000UF ±20% 160V SNAP-INAluminum Electrolytic CapacitorsN/A160 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
1 mF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
4.5 A @ 100 kHz
Ripple Current Low Frequency:
3 A @ 120 Hz
Size / Dimension:
30 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
677
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LLG2C102MELZ40
LLG2C102MELZ40NichiconCAP ALUM 1000UF ±20% 160V SNAP-INAluminum Electrolytic CapacitorsN/A160 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
1 mF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
4.5 A @ 100 kHz
Ripple Current Low Frequency:
3 A @ 120 Hz
Size / Dimension:
40 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
994
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LLG2C122MELA35
LLG2C122MELA35NichiconCAP ALUM 1200UF ±20% 160V SNAP-INAluminum Electrolytic CapacitorsN/A160 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
1.2 mF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
4.875 A @ 100 kHz
Ripple Current Low Frequency:
3.25 A @ 120 Hz
Size / Dimension:
35 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
952
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LLG2C122MELB25
LLG2C122MELB25NichiconCAP ALUM 1200UF ±20% 160V SNAP-INAluminum Electrolytic CapacitorsN/A160 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
1.2 mF
ESR:
N/A
Height Seated (Max):
2.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
4.575 A @ 100 kHz
Ripple Current Low Frequency:
3.05 A @ 120 Hz
Size / Dimension:
25 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
741
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LLG2C122MELZ40
LLG2C122MELZ40NichiconCAP ALUM 1200UF ±20% 160V SNAP-INAluminum Electrolytic CapacitorsN/A160 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
1.2 mF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
4.575 A @ 100 kHz
Ripple Current Low Frequency:
3.05 A @ 120 Hz
Size / Dimension:
40 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,256
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LLG2C152MELA40
LLG2C152MELA40NichiconCAP ALUM 1500UF ±20% 160V SNAP-INAluminum Electrolytic CapacitorsN/A160 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
1.5 mF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
2000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
5.1 A @ 100 kHz
Ripple Current Low Frequency:
3.4 A @ 120 Hz
Size / Dimension:
40 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,488
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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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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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