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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LLS1C273MELALLS1C273MELANichiconCAP ALUM 27000UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
27 mF
ESR:
N/A
Height Seated (Max):
4.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
5.727 A @ 50 kHz
Ripple Current Low Frequency:
4.98 A @ 120 Hz
Size / Dimension:
45 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
839
LLS1C273MELBLLS1C273MELBNichiconCAP ALUM 27000UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
27 mF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
5.692 A @ 50 kHz
Ripple Current Low Frequency:
4.95 A @ 120 Hz
Size / Dimension:
35 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,165
LLS1C273MELCLLS1C273MELCNichiconCAP ALUM 27000UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
27 mF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
5.543 A @ 50 kHz
Ripple Current Low Frequency:
4.82 A @ 120 Hz
Size / Dimension:
30 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
857
LLS1C333MELALLS1C333MELANichiconCAP ALUM 33000UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
33 mF
ESR:
N/A
Height Seated (Max):
5.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
6.314 A @ 50 kHz
Ripple Current Low Frequency:
5.49 A @ 120 Hz
Size / Dimension:
50 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,787
LLS1C333MELBLLS1C333MELBNichiconCAP ALUM 33000UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
33 mF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
6.44 A @ 50 kHz
Ripple Current Low Frequency:
5.6 A @ 120 Hz
Size / Dimension:
40 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,226
LLS1C333MELCLLS1C333MELCNichiconCAP ALUM 33000UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
33 mF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
6.279 A @ 50 kHz
Ripple Current Low Frequency:
5.46 A @ 120 Hz
Size / Dimension:
30 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,732
LLS1C393MELBLLS1C393MELBNichiconCAP ALUM 39000UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
39 mF
ESR:
N/A
Height Seated (Max):
4.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
7.141 A @ 50 kHz
Ripple Current Low Frequency:
6.21 A @ 120 Hz
Size / Dimension:
45 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
803
LLS1C393MELCLLS1C393MELCNichiconCAP ALUM 39000UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
39 mF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
7.038 A @ 50 kHz
Ripple Current Low Frequency:
6.12 A @ 120 Hz
Size / Dimension:
35 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
857
LLS1C473MELBLLS1C473MELBNichiconCAP ALUM 47000UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
47 mF
ESR:
N/A
Height Seated (Max):
5.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
7.97 A @ 50 kHz
Ripple Current Low Frequency:
6.93 A @ 120 Hz
Size / Dimension:
50 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,534
LLS1C473MELCLLS1C473MELCNichiconCAP ALUM 47000UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
47 mF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
7.923 A @ 50 kHz
Ripple Current Low Frequency:
6.89 A @ 120 Hz
Size / Dimension:
40 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
875
LLS1C563MELCLLS1C563MELCNichiconCAP ALUM 56000UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
56 mF
ESR:
N/A
Height Seated (Max):
4.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
8.844 A @ 50 kHz
Ripple Current Low Frequency:
7.69 A @ 120 Hz
Size / Dimension:
45 x 35 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
707
LLS1C822MELZLLS1C822MELZNichiconCAP ALUM 8200UF ±20% 16V SNAP-INAluminum Electrolytic CapacitorsN/A16 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
8.2 mF
ESR:
N/A
Height Seated (Max):
2.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
2.944 A @ 50 kHz
Ripple Current Low Frequency:
2.56 A @ 120 Hz
Size / Dimension:
25 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,603
LLS1E103MELALLS1E103MELANichiconCAP ALUM 10000UF ±20% 25V SNAP-INAluminum Electrolytic CapacitorsN/A25 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
10 mF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
3.634 A @ 50 kHz
Ripple Current Low Frequency:
3.16 A @ 120 Hz
Size / Dimension:
30 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,540
LLS1E103MELZLLS1E103MELZNichiconCAP ALUM 10000UF ±20% 25V SNAP-INAluminum Electrolytic CapacitorsN/A25 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
10 mF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
3.807 A @ 50 kHz
Ripple Current Low Frequency:
3.31 A @ 120 Hz
Size / Dimension:
35 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,876
LLS1E123MELALLS1E123MELANichiconCAP ALUM 12000UF ±20% 25V SNAP-INAluminum Electrolytic CapacitorsN/A25 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
12 mF
ESR:
N/A
Height Seated (Max):
3.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
4.175 A @ 50 kHz
Ripple Current Low Frequency:
3.63 A @ 120 Hz
Size / Dimension:
35 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
975
LLS1E123MELBLLS1E123MELBNichiconCAP ALUM 12000UF ±20% 25V SNAP-INAluminum Electrolytic CapacitorsN/A25 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
12 mF
ESR:
N/A
Height Seated (Max):
2.7 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
4.37 A @ 50 kHz
Ripple Current Low Frequency:
3.8 A @ 120 Hz
Size / Dimension:
25 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,920
LLS1E123MELZLLS1E123MELZNichiconCAP ALUM 12000UF ±20% 25V SNAP-INAluminum Electrolytic CapacitorsN/A25 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
12 mF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
4.335 A @ 50 kHz
Ripple Current Low Frequency:
3.77 A @ 120 Hz
Size / Dimension:
40 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,361
LLS1E153MELALLS1E153MELANichiconCAP ALUM 15000UF ±20% 25V SNAP-INAluminum Electrolytic CapacitorsN/A25 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
15 mF
ESR:
N/A
Height Seated (Max):
4.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
4.715 A @ 50 kHz
Ripple Current Low Frequency:
4.1 A @ 120 Hz
Size / Dimension:
40 x 25 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,742
LLS1E153MELBLLS1E153MELBNichiconCAP ALUM 15000UF ±20% 25V SNAP-INAluminum Electrolytic CapacitorsN/A25 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
15 mF
ESR:
N/A
Height Seated (Max):
3.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
4.6 A @ 50 kHz
Ripple Current Low Frequency:
4 A @ 120 Hz
Size / Dimension:
30 x 30 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,895
LLS1E153MELZLLS1E153MELZNichiconCAP ALUM 15000UF ±20% 25V SNAP-INAluminum Electrolytic CapacitorsN/A25 V-40°C - 85°C
Applications:
General Purpose
Capacitance:
15 mF
ESR:
N/A
Height Seated (Max):
5.2 cm
Impedance:
N/A
Lead Spacing:
N/A
Lifetime @ Temp:
3000 h @ 85°C
Polarization:
Polar
Ratings:
N/A
Ripple Current High Frequency:
4.841 A @ 50 kHz
Ripple Current Low Frequency:
4.21 A @ 120 Hz
Size / Dimension:
50 x 22 mm
Surface Mount Land Size:
N/A
Tolerance:
-20%~20%
1,859

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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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