Q: There are cracks on the capacitor. Is this normal?

Occasionally, cracks may appear on EPCOS (TDK) B32562J1335K000 film capacitors (DigiKey part number: 495-6851-ND). This is normal in these capacitors and can be considered a cosmetic issue that does not affect any electrical parameters or functionality of the capacitor.

The relationship between the allowable AC voltage _VRMS and the frequency f of the film capacitor B32562

During the manufacturing process of stacked film capacitors, the individual layers of metallized film are subjected to mechanical stresses when winding, scooping, tempering, and sawing the capacitors. In addition, during the soldering process, localized heating of the capacitors may force moisture stored between the film layers to rapidly escape, generating similar stresses.

All these mechanical stresses may be naturally released through cracks, which mainly occur between the bottom leads of the capacitor. Strength endurance tests on such components have shown that cracks do not affect the electrical characteristics or reliability of the uncoated capacitors (SilverCap), so the presence of such cracks is not dangerous for the application.

For more Film capacitors related technical content , please check the following:

• Film Capacitor Overview

• Appearance Matters: Kemet's Polypropylene (PP) Axial Film Capacitors

• The film of the film capacitor is peeling off? Tell you why and what to do

• Panasonic ECW-U(C) film capacitor appearance problem

• Environmental categories of film capacitors

Finally, if you like this article, please share it with more friends ! Remember to give it a thumbs up !

Tips Click on the menu Design Support: Engineer Tips to get more tips for engineers

↙

Click "Read More" below to see more

Let me know you 're watching