Interactive chip reference

2N3904 TO-92-3 pinout

2N3904 3-pin TO-92-3 pinout. General-purpose NPN BJT — TO-92, 200mA, 40V Vceo, hFE 100–300

Package
TO-92-3
Pin count
3
Category
Transistors

Pin reference

Pin Name Function Group
1 E Emitter — current output, typically to GND ground
2 B Base — control input (IB drives IC≈hFE×IB) control
3 C Collector — switched output, sinks load current output

View the interactive 2N3904 package diagram and labeled pin details on WhichPin.