Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
With a multimeter on diode test setting.
First test whether there is any short between Drain-Source, this should indicate an open circuit unless there is an internal protection diode which usually measures 0.6V.
Second, test all ther combinations for shorts, e.g. Drain-Gate, Gate-Source.
In case of a good mosfet, a voltage at the gate should produce a short (continuity actually) between Drain and Source. By touching the gate ao as to discharch or by connecting it to the Source pin so as to discharge it, the continuity between Drain-Source should disappear and you should measure nothing, open circuit. If the continuity remains then the mosfet is bad.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
