- Dec 17, 2004
- Brooklyn, New York, U.S.A.
I've noticed in dozens of power supply schematics that unless it's a 100nF, non-polar and electrostatic caps (i.e. film) are never specified. With something like a 10uF Vreg bypass cap, for example, a polarized electrolytic or tantalum is always suggested. What are some of the electrical reasons (not just cost, size, practicality) for this? What possible benefits might I obtain by using film caps, or even high quality non-polar electros, in these types of PS applications?