160V 47uF aluminum electrolytic capacitor

If your board needs a 160v 47uf capacitor rated for 160V, and the old part is a radial aluminum electrolytic can, this is the part to order. It is a 47uF part for filtering and smoothing on high-voltage DC lines, where a small capacitance must hold the voltage steady while the load changes. It does not fit circuits that run above 160V, or boards with no room for a 10 mm by 20 mm can with 5 mm lead spacing. Check the checks below before you order, so the value, the voltage, the size, and the polarity all match your board.

This is an original, high-quality part.

What it does

A capacitor stores charge, then lets it go when the circuit needs it. On a power supply board, a 47uF capacitor smooths the DC line after rectification, so the ripple — the small up-and-down wobble on the DC voltage — stays small. It also stores energy for short load changes, so a sudden demand does not drag the voltage down. That is why this value shows up in solar inverters, power supplies, and other high-voltage circuits.

This is an aluminum electrolytic capacitor. That construction gives useful capacitance in a small can, but it also means the part is polarized: it has a positive side and a negative side, and it must go in the right way round. A ceramic capacitor has no polarity, but this part is not ceramic, so polarity matters here.

Key features

• 47uF capacitance for filtering and smoothing
• 160V rated voltage
• Aluminum electrolytic construction, radial lead type
• Capacitance tolerance ±20% (37.6 to 56.4 uF)
• Wide temperature range: −40 °C to +105 °C
• Can body: 10 mm diameter × 20 mm long, 5 mm lead spacing
• Polarized — match the marks on the part and the board
• Reduces voltage ripple and electrical noise on DC lines

Checks before you order

• Value: your board list must call for 47uF. If your list says a different value, stop and check again. A 100V 100uF part is a different value at a lower voltage for a different job, not a swap for this one.
• Voltage: the highest voltage on that line must stay at or below 160V. Above 160V, this part is the wrong pick. A 50V 47uF part has the same capacitance but only a 50V rating — it is NOT a swap for a 160V job, even though the value matches.
• Polarity: this part is polarized. Match the polarity marks on the part to the marks on your board before you solder. A polarized part fitted the wrong way round will not work as planned and can fail.
• Size and lead spacing: the can is 10 mm across and 20 mm long, with leads 5 mm apart. Measure the space on your board and the distance between the board holes, and compare them with the part in hand before ordering. Do not guess the size from the value alone.
• Heat: this part is rated to +105 °C, but heat still ages electrolytic capacitors faster than any other factor. If the old part sat next to a hot heatsink, check the heat source too, or the new part will age the same way.
• Old-part check: if the old capacitor is bulged, leaking, or lifted at the top, replace it and check the parts around it as well. A failed capacitor is often a sign of heat or over-voltage nearby.

Specifications

All figures below are from the live page’s own spec block. No figure here was guessed. Ripple current, ESR, leakage current, and lifetime figures are not listed, because the maker and series of the stocked part are not stated on the live page and no matching series member was verified — see the gates note.

Other names for the same part (good to know)

Shoppers and repair techs write this same part in a few ways. 160v 47uf capacitor is the plain name from its voltage and value. 160v 47uf electrolytic capacitor is the value-plus-voltage form used in board lists. 47uf capacitor is the short form most buyers type. Aluminum electrolytic capacitor is the construction name that sets this part apart from ceramic and film parts. 160v capacitor is the short name buyers use when the voltage is what matters most. All of these names point to the same part on this page: 47uF, 160V, radial aluminum electrolytic. If any one of those numbers is different, it is not this part.

Frequently Asked Questions

What does 47uF mean?

47uF is the capacitance: how much charge the part stores. A larger number means more charge storage, which means stronger smoothing on a power supply line.

Does this capacitor have a positive and negative side?

Yes. This is a polarized aluminum electrolytic capacitor, so it has a positive side and a negative side. Match the polarity marks on the part to the marks on your board before soldering.

Can I use this part above 160V?

No. 160V is the rated voltage for this part. A line that runs above 160V needs a part rated for that higher voltage, not this one.

Can I use a 50V 47uF part instead, since the value matches?

No. The value is only half the match — the voltage rating matters just as much. A 50V part on a line that runs up to 160V will fail. Match both the value and the voltage.

Why does the size matter if the value and voltage match?

Because makers build this same 47uF 160V value in more than one body size. A part that is too tall or too wide will not fit the space on your board, and leads that do not match the board holes cannot be soldered in. Measure before ordering.

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-quality 160V 47uF aluminum electrolytic capacitor for reliable energy storage in power electronics, giving stable performance in demanding applications like solar inverters and power supplies, with a compact design, good ripple current handling, and long lifespan, for energy-efficient circuits and power storage, for voltage regulation, filtering, and noise suppression in DC-DC power conversion systems and industrial or renewable energy setups, with a note to take the required life, temperature, ripple current, and physical size into account before buying — and that use still stands.