Re: Hot Snubber


I made my way over to my local Radio Shack today and picked up a capacitor, 0.1 uF,250 WVDC (272-10530 and a pair of resistors, 100 ohm, 1 Watt (271-152).

Since a pair of resistors came in the package, I decided to first replace the 1/2 watt resistor with a 1 watt resistor while keeping the original capacitor.  Result: the 1 watt resistor was red hot.

So, I soldered the other 1 watt resistor to the new capacitor and soldered it in place of the older assembly. The resistor was very warm but not hot so that I could hold onto it between my fingers.

In both cases, the capacitor was cool to the touch.

I went along my layout and examined the other snubbers.  All of the capacitors were cool.  Some of the resistors were cool, some were warm, none was hot.



Join to automatically receive all group messages.