222pf 2kv ceramic disc capacitor

If your board needs a 222pf 2kv capacitor, and the old part is a 2.2nF ceramic disc rated at 2kV with radial leads, this is the part to order. It is a 222pf 2kv capacitor in a round disc body with two leads, built as a high-voltage ceramic capacitor for filtering, noise suppression, and transient voltage protection in high-voltage circuits where a low-voltage part would fail. It fits solar inverters, DC-DC converters, snubber circuits, and EMI suppression jobs that need a fixed 2.2nF value at up to 2kV. It does not fit jobs that need a different capacitance value, a higher voltage than 2kV, or a surface-mount body. Check the checks below before you order, so the value, the voltage, the tolerance, and the lead spacing 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. A ceramic disc capacitor does that job as a round flat disc with a lead on each side, which solders straight into the holes of a board. This 222pf 2kv part holds its 2.2nF value within 10%, so a board that calls for 2.2nF gets between 1.98 and 2.42nF. The 2kV rating is what sets it apart from the low-voltage ceramic capacitors used on logic boards — it can stand across a high-voltage stage without damage, as long as the voltage limits below are respected. You can check the value from the code: the value code for this part is 222, which reads as 22 followed by 2 zeros, or 2,200 picofarads — that is 2.2 nanofarads. It does not mean 222 picofarads.

Repair techs use a part like this as a 2.2nf 2kv capacitor for high-frequency filtering, where it lets the wanted signal through and blocks the rest, and for transient voltage protection, where it soaks up sudden voltage peaks before they can damage the rest of the board. It also fits snubber circuits, where it tames switching spikes, and EMI suppression, where it cuts electrical noise before it spreads. The disc is ceramic with silver-plated sides, and the leads are tinned copper-clad steel wire.

Key features

• 2.2nF (2,200pF, 0.0022uF) capacitance, ±10% tolerance
• 2kV rated voltage
• Ceramic disc, radial leads, through-hole mounting
• Disc size about 10 mm, lead spacing about 12.5 mm
• Lead diameter 0.7 mm
• Non-polarized — fits either way round
• Value code 222

Checks before you order

• Value — read the code: your board list must call for 2.2nF, which is the part marked 222. If your board list calls for 222 picofarads, that is a different, far smaller part — stop and check the board list again. The code 222 is 2,200 pF, not 222 pF. A 102PF 1kV dip ceramic capacitor is a different value at a lower voltage for a different job, not a swap for this one.
• Voltage: the voltage across this part must never go above 2kV. If your circuit runs at a higher voltage, this part is the wrong pick — check the board list for the voltage your circuit really needs.
• Tolerance: the real value may sit up to 10% away from 2.2nF, so between 1.98 and 2.42nF. If your circuit needs tighter than 10%, 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 disc with two leads about 12.5 mm apart. Measure the old part and match it against the holes and the space on your board. The disc is about 10 mm across — if your old part is much bigger or smaller, check the board list again before you order. A 470PF 1kV dip ceramic capacitor is a different value at a lower voltage for a different job, not a swap for this one.
• Polarity: this part has no polarity — it fits either way round. If your board list calls for a polar part, this is the wrong pick.
• Fit for the job: this part suits high-voltage filtering, transient voltage protection, snubber circuits, and EMI suppression. If your job needs a safety capacitor across the mains or a much larger value for bulk energy storage, this part is the wrong pick — match the board list exactly.

Specifications

All figures below are the live page’s own spec-block figures. No figure here was guessed, and no dielectric or temperature range is claimed, because the live page gives neither. The publisher should confirm the 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. 222pf 2kv is the plain name from its code and its voltage. 222pf 2kv capacitor is the name buyers use when the full rating matters. 2.2nf 2kv capacitor is the name buyers use with the value in nanofarads. Ceramic disc capacitor is the name for its shape and construction. 2kv ceramic capacitor is the short name from its voltage rating. If your board list calls for 2.2nF at 2kV in a radial disc body, this page is the right match. Do not judge by the name alone — 222 is the code for 2,200pF, not 222 picofarads — check the value, the voltage, and the lead spacing too.

Frequently Asked Questions

What does 222 mean — is it 222 picofarads?

No. 222 is the value code for 2,200 picofarads, which is 2.2 nanofarads or 0.0022 microfarads. Under the standard 3-digit code, 222 means 22 followed by 2 zeros, in picofarads. The name “222pf” is the code, not the value in picofarads.

What does 2kV mean for this part?

2kV is the rated voltage: the highest voltage the part is made to stand across in normal use, which is 2000 volts. The voltage across the part must stay at or below 2kV.

Is this capacitor polar?

No. It is a ceramic disc capacitor, so it has no polarity and fits either way round. If your board list calls for a polar part, this is the wrong pick.

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

No, not without checking the circuit. The capacitance value sets how the part filters signals and soaks up spikes, 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.

How do I fit a disc capacitor?

Push the two leads through the matching holes on the board and solder them. Check the lead spacing against the holes before you solder — the live page states about 12.5 mm, so measure the old part rather than guessing from the value alone. Keep the disc clear of parts that cannot take heat.

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 222PF 2KV ceramic disc capacitor, a high-voltage ceramic disc capacitor for stability in solar inverter applications, for high-frequency filtering, noise suppression, and transient voltage protection in power circuits, for DC-DC converters, snubber circuits, and EMI suppression, and for industrial power supplies, motor drives, and renewable energy systems — and that use still stands.