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EEVblog 1481 - Dodgy Dangerous Heater REPAIR

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wraper:

--- Quote from: thm_w on June 23, 2022, 10:21:48 pm ---On digikey its about 84C for a 220nF X2 and $1 for 630V polyester. Seems worth the 16c premium if it means the device won't die again.

--- End quote ---
I don't think one is more reliable than other. All depends on quality of implementation. In cases when X2 caps have DC rating, usually it is somewhere around 600V. Often capacitive droppers use film capacitors with 400V DC rating, and IME it's very unreliable.

insine:
Why there are holes drilled near some pads?


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