• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Thermal Pad is needed or not?

Thread starter #1
How to tell whether a thermal pad is needed or not from seeing mosfet datasheet. I want to put an H bridge on a Heat Sink. so for Electrical isolation I need Thermal pads, but some of the switches dont need becasue they have already insulated case and only thermal paste is fine. So how to tell?
For example refer these two Datasheets


Well-Known Member
Most Helpful Member
Look at the pinout. If it's connected to something, it has to be the same as a pre-existing electrical connection and thus will be listed alongside all the other pins.


Well-Known Member
Most Helpful Member
You should be able to see it by inspection. If not, try an Ohmeter...

Latest threads

EE World Online Articles