2N3904 transistor | datasheet | pinout | npn MICROSS/On Semiconductor

2N3904 Transistor Pinout

2N3904 Transistor Pinout Diagram

The 2N3904 is an NPN type silicon transistor used in low power amplifiers, switching circuits, and so on. For example, to build a switching circuit, by inputting a small current through the base, the transistor will allow current to pass between the collector and emitter to light the LED.

Note: Be sure to identify the pins (emitter, base, collector) correctly to avoid damage to the device caused by misconnecting the pins.