Electrolytic Capacitor with Unusual Marking

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Discussion Overview

The discussion revolves around the interpretation of the marking "400 WV" on an electrolytic capacitor with a capacitance of 68 µF. Participants explore the meaning of the "W" in the context of voltage ratings.

Discussion Character

  • Technical explanation, Conceptual clarification

Main Points Raised

  • One participant questions whether "400 WV" indicates the service voltage of the capacitor and seeks clarification on the meaning of the letter "W".
  • Another participant suggests that "WV" could stand for maximum safe working voltage, expressing uncertainty.
  • A third participant confirms that "WV" is understood as "working voltage" and references an external link for further information.
  • A later reply expresses gratitude for the information and the link provided.

Areas of Agreement / Disagreement

There is some agreement that "WV" refers to working voltage, but the exact interpretation and implications remain somewhat uncertain, with differing levels of confidence among participants.

Contextual Notes

Participants do not fully resolve the meaning of the letter "W" or its implications for the capacitor's use, leaving some assumptions and interpretations open to further discussion.

Ravaner
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Hello. I own an electrolytic capacitor which capacitance is 68 µF. Something strange is written on it 400 WV. Is it the service voltage ? Probably, but in that case, what is the meaning of the letter W ? Thanks by advance for your replies.
 
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Could it stand for the maximum safe working voltage?I am not sure.
 
Thanks a lot for informations & link
 

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