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Updated Thermal Testing

A project log for PROTECT Series: DC Power Management Modules

Protect is a series of high-quality DC Power Protection Modules designed for makers using the best eFuses and automotive power path ICs.

pn-labsPN Labs 02/04/2026 at 17:550 Comments

The results are in and the final temperature was around 102 C after 5 minutes of continuous testing at 29.5 A!

One thing the previous calculations neglected was the heat generated from the 1m shunt resistor, which is now placed closer to the FETs than was before.

Next we are going to evaluate the efficiency, which should be around 95% typical, compared to about 98% for the Protect, owing to the higher series resistance of the FETs and shunt resistor.


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