09-24-2023, 10:53 PM
Rich
Yes, I know these.
Y-rated caps are specifically made to be connected from AC wires to safety GND and are used in, for instance, off-line power supplies as bridge caps or common mode filter caps, all of which connect various parts of the AC line rectifier or the lines themselves to GND. Therefore they are supposed to fail open as in the situation with accidental GND disconnect (touch current).
In the days of yore there were no X/Y rating. They just counted on high enough working voltage to guarantee from the electrical breakdown. Which, to my knowledge, still resulted in some untimely demises of a few human beings, including some more or less famous ones.
Yes, I know these.
Y-rated caps are specifically made to be connected from AC wires to safety GND and are used in, for instance, off-line power supplies as bridge caps or common mode filter caps, all of which connect various parts of the AC line rectifier or the lines themselves to GND. Therefore they are supposed to fail open as in the situation with accidental GND disconnect (touch current).
In the days of yore there were no X/Y rating. They just counted on high enough working voltage to guarantee from the electrical breakdown. Which, to my knowledge, still resulted in some untimely demises of a few human beings, including some more or less famous ones.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
