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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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LKX2D391MESZ30
LKX2D391MESZ30NichiconCAP ALUM 390UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
390 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:
1.965 A @ 50 kHz
Ripple Current Low Frequency:
1.31 A @ 120 Hz
Size / Dimension:
30 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,544
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LKX2D471MESA30
LKX2D471MESA30NichiconCAP ALUM 470UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
470 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:
2.22 A @ 50 kHz
Ripple Current Low Frequency:
1.48 A @ 120 Hz
Size / Dimension:
30 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
540
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LKX2D471MESY45
LKX2D471MESY45NichiconCAP ALUM 470UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°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:
2.22 A @ 50 kHz
Ripple Current Low Frequency:
1.48 A @ 120 Hz
Size / Dimension:
45 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,006
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LKX2D471MESZ35
LKX2D471MESZ35NichiconCAP ALUM 470UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
470 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:
2.22 A @ 50 kHz
Ripple Current Low Frequency:
1.48 A @ 120 Hz
Size / Dimension:
35 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
981
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LKX2D561MESA35
LKX2D561MESA35NichiconCAP ALUM 560UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
560 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:
2.4 A @ 50 kHz
Ripple Current Low Frequency:
1.6 A @ 120 Hz
Size / Dimension:
35 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,048
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LKX2D561MESY50
LKX2D561MESY50NichiconCAP ALUM 560UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°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:
2.4 A @ 50 kHz
Ripple Current Low Frequency:
1.6 A @ 120 Hz
Size / Dimension:
50 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,904
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LKX2D561MESZ40
LKX2D561MESZ40NichiconCAP ALUM 560UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
560 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:
2.4 A @ 50 kHz
Ripple Current Low Frequency:
1.6 A @ 120 Hz
Size / Dimension:
40 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
540
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LKX2D681MESA40
LKX2D681MESA40NichiconCAP ALUM 680UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
680 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:
2.625 A @ 50 kHz
Ripple Current Low Frequency:
1.75 A @ 120 Hz
Size / Dimension:
40 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,956
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LKX2D681MESB30
LKX2D681MESB30NichiconCAP ALUM 680UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
680 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:
2.625 A @ 50 kHz
Ripple Current Low Frequency:
1.75 A @ 120 Hz
Size / Dimension:
30 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
682
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LKX2D681MESC25
LKX2D681MESC25NichiconCAP ALUM 680UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
680 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:
2.625 A @ 50 kHz
Ripple Current Low Frequency:
1.75 A @ 120 Hz
Size / Dimension:
25 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
795
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LKX2D681MESZ45
LKX2D681MESZ45NichiconCAP ALUM 680UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
680 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:
2.625 A @ 50 kHz
Ripple Current Low Frequency:
1.75 A @ 120 Hz
Size / Dimension:
45 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
662
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LKX2D821MESA45
LKX2D821MESA45NichiconCAP ALUM 820UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
820 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:
3.06 A @ 50 kHz
Ripple Current Low Frequency:
2.04 A @ 120 Hz
Size / Dimension:
45 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,455
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LKX2D821MESB35
LKX2D821MESB35NichiconCAP ALUM 820UF ±20% 200V SNAP-INAluminum Electrolytic CapacitorsN/A200 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
820 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:
3.06 A @ 50 kHz
Ripple Current Low Frequency:
2.04 A @ 120 Hz
Size / Dimension:
35 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,911
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LKX2E102MESB45
LKX2E102MESB45NichiconCAP ALUM 1000UF ±20% 250V SNAP-INAluminum Electrolytic CapacitorsN/A250 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
1 mF
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:
3.3 A @ 50 kHz
Ripple Current Low Frequency:
2.2 A @ 120 Hz
Size / Dimension:
45 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,167
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LKX2E102MESC35
LKX2E102MESC35NichiconCAP ALUM 1000UF ±20% 250V SNAP-INAluminum Electrolytic CapacitorsN/A250 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
1 mF
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:
3.3 A @ 50 kHz
Ripple Current Low Frequency:
2.2 A @ 120 Hz
Size / Dimension:
35 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,113
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LKX2E122MESC40
LKX2E122MESC40NichiconCAP ALUM 1200UF ±20% 250V SNAP-INAluminum Electrolytic CapacitorsN/A250 V-40°C - 105°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 @ 105°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
3.45 A @ 50 kHz
Ripple Current Low Frequency:
2.3 A @ 120 Hz
Size / Dimension:
40 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,102
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LKX2E152MESC50
LKX2E152MESC50NichiconCAP ALUM 1500UF ±20% 250V SNAP-INAluminum Electrolytic CapacitorsN/A250 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
1.5 mF
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:
3.75 A @ 50 kHz
Ripple Current Low Frequency:
2.5 A @ 120 Hz
Size / Dimension:
50 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,181
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LKX2E181MESY25
LKX2E181MESY25NichiconCAP ALUM 180UF ±20% 250V SNAP-INAluminum Electrolytic CapacitorsN/A250 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
180 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:
1.35 A @ 50 kHz
Ripple Current Low Frequency:
900 mA @ 120 Hz
Size / Dimension:
25 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,068
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LKX2E221MESY30
LKX2E221MESY30NichiconCAP ALUM 220UF ±20% 250V SNAP-INAluminum Electrolytic CapacitorsN/A250 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
220 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:
1.5 A @ 50 kHz
Ripple Current Low Frequency:
1 A @ 120 Hz
Size / Dimension:
30 x 20 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
645
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LKX2E221MESZ25
LKX2E221MESZ25NichiconCAP ALUM 220UF ±20% 250V SNAP-INAluminum Electrolytic CapacitorsN/A250 V-40°C - 105°C
Applications:
General Purpose
Capacitance:
220 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:
1.5 A @ 50 kHz
Ripple Current Low Frequency:
1 A @ 120 Hz
Size / Dimension:
25 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,511
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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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