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Re: Why Polyester cap(0.47uf)=5644 ohms?

0

Posted by Marty on August 2, 2001 at 12:14:50

In Reply to: Why Polyester cap(0.47uf)=5644 ohms? posted by Fleming on July 26, 2001 at 17:38:51:

What is your application? Is a capacitor appropriate?
Be sure to consider the voltage rating and type. When it
is used with mains AC as in a snubber, the cap should be
rated for the application – most importantly look for the
sine symbol after the voltage rating indicating RMS.

I use a few paralleled snubber rated caps to drop the voltage
to a ventilation fan so I don’t hear it below the music. Caps
in this application don’t dissipate the heat or take up
as much room as a properly sized resistor.

I’ve also used film caps to drop the voltage to LED’s in simple
indicator circuits, eliminating a somewhat bulkier power supply.

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