Technical Resources

Polymer Film Capacitors Provide Needed Performance

There is probably not a single electronic design engineer who has not come up with a new circuit design only to have it fail during bench testing because it appeared that either there was a design error or a faulty component had been used. In the majority of cases it is neither; with the failure occurring because of a key component’s unacceptable parasitic losses due to its reaction to temperature, voltage and/or frequency variations. There is nothing more frustrating than spending the time troubleshooting a “defective” circuit only to find the cause being a 4.7µF capacitor that has an actual effective working value of only 0.33µF.