I have a project that involves using a transistor to drive an external device. The external device requires 500mA and my parts are sized to handle this fine.
My concern is that if the external device fails or is improperly connected, it is going to instantly destroy the transistor.
What would be an appropriate method to prevent this? I looked at those resettable fuses, but they aren't fast enough in my testing to protect the transistor which gets pretty much instantly fried.
I'm sure there is an easy way to do this, any suggestions?