L7805 regulator decoupling capacitro faulier

[Rathinavel]

Hi Sir/Madam,

My application is photoelectric sensor object detection or object sensing.

I am using the L7805 ST make. Positive voltage regulators output voltage is 5V, and I am giving the input voltage as 24V, and the maximum DC voltage is up to 30V DC.

The regulator input and output decoupling capacitor value is 10uF/50V_0805.

Our main problem is decoupling capacitor failure, either input or output decoupling capacitor.

And also, we added the series 10E before the decoupling capacitor; still, we are facing the decoupling capacitor failure (capacitor short).

If anyone knows the reason, just tell me.

[Peter BENSCH]

Welcome @Rathinavel, to the community!

The L7805 is a device from the last millennium that is still used in very large quantities worldwide. If you have short circuits in the capacitors, this has absolutely nothing to do with the L7805, but e.g. with the mechanical stress of the ceramic capacitors (e.g. bending during soldering).

Hope that helps?

Regards
/Peter