450V 10uF aluminum electrolytic capacitor

 

If your board needs a 450v 10uf capacitor, and the old part is a 450V aluminum electrolytic part with radial leads, this is the part to order. It is a 450v 10uf capacitor in a radial through-hole body, built for energy storage, filtering, and voltage stabilisation in high-voltage circuits where a lower-voltage part would fail. It fits solar inverters, power supplies, motor control circuits, and industrial automation that need a 450V 10uF part. It does not fit jobs that need a different capacitance value, a lower voltage rating than your circuit needs, 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 450v 10uf part holds its 10uF value within 20%, so a board that calls for 10uF gets between 8 and 12uF. The 450V rating is what sets it apart from every low-voltage capacitor on the board — it can stand across a high-voltage stage without damage, as long as the voltage and ripple limits below are respected.

Repair techs use a part like this as a 450v 10uf 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 stabilisation, where a steady supply keeps the rest of the board working well, and it helps suppress voltage spikes so sensitive parts are protected from surges.

Key features

• 10uF capacitance, ±20% tolerance
• 450V rated voltage, 500V surge voltage
• Aluminum electrolytic construction with radial leads for through-hole mounting
• Operating temperature range −25°C to +85°C
• Dissipation factor 0.25 max at 120Hz
• Endurance 2000 hours at 85°C at rated voltage
• Series reference body 12.5 mm × 20 mm, ripple current 90mA at 85°C and 120Hz

Checks before you order

• Value: your board list must call for 10uF. A nearby value is not the same part — if your board needs a different value, stop and check the board list again. A 200V 47uF part is a different value for a different job, not a swap for this one.
• Voltage: the voltage across this part, including the DC level plus the peak of any AC ripple on top of it, must never go above 450V. If your circuit runs above 450V, this part is the wrong pick. A short surge up to 500V is allowed by the series rating, but that is for brief abnormal peaks only, not for normal running. This is a high-voltage part — work on it only with the power off and the capacitors discharged.
• 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 series rating of 90mA at 85°C and 120Hz. Ripple current heats the part from the inside, so check the ripple in your real circuit and keep it inside the rating with room to spare.
• Tolerance: the real value may sit up to 20% away from 10uF, so between 8 and 12uF. 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. The series reference body for a 450V 10uF part is about 12.5 mm across and 20 mm long — if your old part is much bigger or smaller, check the board list again before you order. A 16V 220uF part is a different value for a low-voltage job, not a swap for this one.
• 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).

Type	Aluminum electrolytic capacitor, radial leads, through-hole
Capacitance	10uF
Tolerance	±20% at 120Hz, 20°C
Rated voltage	450V
Surge voltage	500V
Operating temperature range	−25°C to +85°C
Dissipation factor (tan δ, max)	0.25 at 120Hz, 20°C
Leakage current (max)	280µA after 1 minute at rated voltage (calculated from the series rule, not a datasheet figure)
Endurance	2000 hours at 85°C at rated voltage
Series reference body	12.5 mm diameter × 20 mm long; ripple current 90mA rms at 85°C, 120Hz
Lead spacing / lead diameter	5.0 mm / 0.6 mm for a 12.5 mm case (series reference)

Other names for the same part (good to know)

Shoppers and repair techs call this same part by a few names. 450v 10uf is the plain name from its voltage and value. 450v 10uf capacitor is the name buyers use when the full rating matters. Aluminum electrolytic capacitor is the name for its construction type. 450v capacitor is the short name buyers use when the voltage is the key point. High voltage electrolytic capacitor is the name for its job in high-voltage circuits. If your board list calls for 10uF at 450V 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 450V 10uF mean?

450V is the rated voltage: the highest DC voltage the part is made to stand across in normal use. 10uF is the capacitance: 10 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 500V?

Surge voltage is the brief peak the part can stand during an abnormal overvoltage event — 500V for this part. It is not a running voltage. Normal running voltage must stay at or below 450V.

Can I use a 10uF capacitor rated for a lower voltage?

No. If your circuit runs at up to 450V, 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 high-voltage capacitor for energy storage, filtering, and voltage stabilisation in solar inverters and power circuits, smoothing voltage fluctuations, suppressing voltage spikes, and protecting sensitive components from electrical surges, used in solar inverters, motor control circuits, and industrial automation — and that use still stands.