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Knowles Precision Devices Safety Capacitors

About Safety Capacitors

Knowles Precision Devices supplies (TUV and UL) safety-certified Class-X and Class-Y capacitors that are designed and used in AC line filtering in a range of electronic devices where safety of the user is a concern.

X and Y capacitors are classified by their peak voltage/rated voltage, and the peak impulse voltage that they can be exposed to before failure. More details on the rating ranges available can be viewed in our 250Vac Safety Certified AC Capacitors shortform