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In various circuits intended for use with 230-250 V AC I've seen capacitors labelled as "400V" (Examples: 11, 22)

When I look at Capacitor specifications, they often give separate AC and DC ratings. For example:

(I believe an X-rated cap is designed for use across AC supply live-neutral)

Should I take the "400V" on the diagram as a DC or AC indication?

Am I right in thinking a 350 VAC rated X2 cap is perfectly suitable for 50Hz 240 VAC at say 10 mA?

In various circuits intended for use with 230-250 V AC I've seen capacitors labelled as "400V" (Examples: 1, 2)

When I look at Capacitor specifications, they often give separate AC and DC ratings. For example:

(I believe an X-rated cap is designed for use across AC supply live-neutral)

Should I take the "400V" on the diagram as a DC or AC indication?

Am I right in thinking a 350 VAC rated X2 cap is perfectly suitable for 50Hz 240 VAC at say 10 mA?

In various circuits intended for use with 230-250 V AC I've seen capacitors labelled as "400V" (Examples: 1, 2)

When I look at Capacitor specifications, they often give separate AC and DC ratings. For example:

(I believe an X-rated cap is designed for use across AC supply live-neutral)

Should I take the "400V" on the diagram as a DC or AC indication?

Am I right in thinking a 350 VAC rated X2 cap is perfectly suitable for 50Hz 240 VAC at say 10 mA?

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RedGrittyBrick
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In various circuits intended for use with 230-250 V AC I've seen capacitors labelled as "400V" (Examples: 1, 2)

When I look at Capacitor specifications, they often give separate AC and DC ratings. For example:

(I believe an X-rated cap is designed for use across AC supply live-neutral)

Should I take the "400V" on the diagram as a DC or AC indication?

Am I right in thinking a 350 VAC rated X2 cap is perfectly suitable for 50Hz 240 VAC at say 10 mA?

In various circuits intended for use with 230-250 V AC I've seen capacitors labelled as "400V" (Examples: 1, 2)

When I look at Capacitor specifications, they often give separate AC and DC ratings. For example:

(I believe an X-rated cap is designed for use across AC supply live-neutral)

Should I take the "400V" on the diagram as a DC or AC indication?

Am I right in thinking a 350 VAC rated X2 cap is perfectly suitable for 50Hz 240 VAC at say 10 mA?

In various circuits intended for use with 230-250 V AC I've seen capacitors labelled as "400V" (Examples: 1, 2)

When I look at Capacitor specifications, they often give separate AC and DC ratings. For example:

(I believe an X-rated cap is designed for use across AC supply live-neutral)

Should I take the "400V" on the diagram as a DC or AC indication?

Am I right in thinking a 350 VAC rated X2 cap is perfectly suitable for 50Hz 240 VAC at say 10 mA?

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RedGrittyBrick
RedGrittyBrick
  • 14.8k
  • 5
  • 40
  • 80

AC voltage ratings for capacitors

In various circuits intended for use with 230-250 V AC I've seen capacitors labelled as "400V" (Examples: 1, 2)

When I look at Capacitor specifications, they often give separate AC and DC ratings. For example:

(I believe an X-rated cap is designed for use across AC supply live-neutral)

Should I take the "400V" on the diagram as a DC or AC indication?

Am I right in thinking a 350 VAC rated X2 cap is perfectly suitable for 50Hz 240 VAC at say 10 mA?