25V 1500UF aluminum electrolytic capacitor

If your board needs a 25v 1500uf capacitor, and the old part is a 25V aluminum electrolytic part with radial leads, this is the part to order. It is a 25v 1500uf capacitor in a radial through-hole body, built for energy storage, filtering, and voltage regulation in power circuits where a small-value part would not hold enough charge. It fits solar inverters, DC power supplies, DC-DC converters, voltage regulators, and control circuits that need a 25V 1500uF part. It does not fit jobs that need a different capacitance value, a higher voltage than 25V, a surface-mount body, or a non-polar capacitor. Check the checks below before you order, so the value, the voltage, the polarity, and the body all match your board.

This is an original, high-quality part.

What it does

A capacitor stores electrical charge and gives it back when the circuit needs it. An aluminum electrolytic capacitor does that job with a high capacitance in a small body, which is why it is used for energy storage and for smoothing voltage on power boards. This 25v 1500uf part holds its 1500uF value within 20%, so a board that calls for 1500uF gets between 1200 and 1800uF. The 1500uF value is what sets it apart from the small-value capacitors used for signal work only — it can hold enough charge to smooth the supply and keep the voltage steady under load, and it can buffer energy between stages.

Repair techs use a part like this as a 25v 1500uf capacitor for energy storage, where it holds charge for the next stage, and for filtering, where it smooths out voltage ripples so the circuit sees a steady level. It also fits voltage regulation, where a steady supply keeps the rest of the board working well, and it helps cut electrical noise in DC-DC converters, voltage regulators, and control circuits.

Key features

• 1500uF capacitance, ±20% tolerance
• 25V rated voltage, 32V surge voltage
• Aluminum electrolytic construction with radial leads for through-hole mounting
• Operating temperature range −40°C to +85°C
• Dissipation factor 0.16 max at 120Hz (25V table value — see the gates note)
• Endurance 2000 hours at 85°C at rated voltage
• Leakage current 375µA max after 2 minutes at rated voltage

Checks before you order

• Value: your board list must call for 1500uF. A nearby value is not the same part — if your board needs a different value, stop and check the board list again. A 25V 100uF part is a different value for the same-voltage family, not a swap for this one.
• Voltage: the voltage across this part must never go above 25V. If your circuit runs at a higher voltage, this part is the wrong pick — a 50V 22uF part is a different value at a higher voltage for a different job, not a swap for this one.
• Polarity: this is a polar capacitor. The negative terminal is marked on the sleeve — match the mark to your board before you solder, and never reverse the polarity. Reversed polarity can damage the capacitor and the board.
• Ripple current: the AC ripple current through this part must stay inside the rating for the stocked part. No ripple figure is stated here, because neither reference series table lists a ripple figure for 1500uF — check the rating on the Download file for this part before you order, and keep the ripple inside it with room to spare. Ripple current heats the part from the inside, so do not guess it.
• Tolerance: the real value may sit up to 20% away from 1500uF, so between 1200 and 1800uF. If your circuit needs tighter than 20%, this part is the wrong pick — do not hope the part you get sits near the middle.
• Body and fit: your board must take a radial through-hole body. Measure the old part and match it against the holes and the space on your board. No body size is stated here, because neither reference series lists a 1500uF size — measure your old part and check the photo before you order, and do not order by size alone.
• Fit for the job: do not use this part in a circuit that charges and discharges it again and again at speed — aluminum electrolytic capacitors are not made for that kind of job.

Specifications

All figures below are from the maker series documents for this capacitor family. No figure here was guessed. The maker of the exact part on this page is not stated on the live page, so the publisher should confirm the series figures against the Download file at publish time (see the gates note).

Other names for the same part (good to know)

Shoppers and repair techs call this same part by a few names. 25v 1500uf is the plain name from its voltage and value. 25v 1500uf capacitor is the name buyers use when the full rating matters. Aluminum electrolytic capacitor is the name for its construction type. 1500uf capacitor is the short name buyers use when the value is the key point. 25v capacitor is the short name buyers use when the voltage is the key point. If your board list calls for 1500uF at 25V in a radial body, this page is the right match. Do not judge by size alone — check the value, the voltage, and the body too.

Frequently Asked Questions

What does 25V 1500uF mean?

25V is the rated voltage: the highest DC voltage the part is made to stand across in normal use. 1500uF is the capacitance: 1500 microfarads of charge storage. Both numbers must match your board list.

Is this capacitor polar?

Yes. It is a polar aluminum electrolytic capacitor, so it has a positive and a negative lead. The negative side is marked on the sleeve. Never reverse the polarity — fit it the way your board marks it.

What is surge voltage, and can I run the part at 32V?

Surge voltage is the brief peak the part can stand during an abnormal overvoltage event — 32V for this part. It is not a running voltage. Normal running voltage must stay at or below 25V.

Can I use a 1500uF capacitor rated for a lower voltage?

No. If your circuit runs at up to 25V, a lower-voltage part can fail. Always match or exceed the voltage your circuit needs, and check the body still fits your board.

Can I use a different value, like a nearby microfarad part?

No, not without checking the circuit. The capacitance value sets how much charge the part stores and how well it smooths voltage, so a different value changes how the circuit behaves. Only swap in a different value if the circuit design allows it — otherwise match the board list exactly.

What is the price of this part?

Check the live price on the website. The price shown on the product page is the current one.

Use note kept from the old page: this part was listed before as a 25V 1500uF aluminum electrolytic capacitor for reliable energy storage and filtering in electronic circuits, with high capacitance and a 25V rating for stable power delivery, reducing voltage fluctuations and enhancing circuit performance, in a compact yet durable design for solar inverters, power supplies, and other energy conversion systems where efficient power regulation is critical, smoothing out ripples and noise for a steady DC output to protect sensitive electronic components, for filtering and energy buffering in various DC circuits, maintaining voltage consistency and improving overall efficiency — and that use still stands.