Test with a multimeter

Film (polyester/polypropylene)

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Now: Measure capacitance

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Pin 1: Pin 1 (1) Pin 2: Pin 2 (2)

Red probe Not connectedBlack probe Not connected

Hold the probe and drag it to the tip of a leg. Tapping works too: first pick the probe, then the leg.

Set the range to F (capacitance).

Measure step by step

A film capacitor has no polarity and very good insulation. The capacitance (F) range shows the value; on the Ω range it goes to OL as it charges.

A capacitor stores energy. Before measuring, cut the power and discharge the capacitor through a resistor; do not short-circuit its pins with a screwdriver.

  1. 1Measure capacitance
  2. 2Watch it charge on the Ω range