What to note in DC withstand voltage testing of film capacitors?
Film capacitors are a type of capacitor with superior performance due to their non-polarity, high insulation impedance, excellent frequency characteristics (wide frequency response), and very low dielectric loss. Therefore, film capacitors are widely used in analog circuits. Especially in signal coupling parts, capacitors with good frequency characteristics and extremely low dielectric loss are required to ensure that signals are not significantly distorted during transmission. The quality requirements for film capacitors are high, and conducting DC withstand voltage testing before leaving the factory is very important. We also need to pay attention to certain aspects when conducting the test.
