Summary of common capacitor failure principles (III)

Inductance failure analysis:

Inductor Failure Mode: Overshoot, Open, Short Circuit of Inductance and Other Performance

Die wound inductor failure mechanism:

1. The magnetic stress produced by the magnetic core during processing is large and has not been released

2. There are impurities in the magnetic core or the core material itself is not uniform, affecting the magnetic field of the magnetic core, so that the permeability of the magnetic core has a deviation;

3. Sintering cracks due to sintering;

4. When the copper wire is connected to the copper strip by dip soldering, the coil part is splashed with tin liquid, melting the insulating layer of the magnet wire, causing a short circuit;

5. The copper wire is slender and causes false welding and open circuit failure when connected to the copper tape.