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2N3904 transistor | datasheet | pinout | npn MICROSS/On Semiconductor
- Transistor Type: -
- Current-Collector(Ic)(Max): -
- Voltage-Collector Emitter Breakdown (Max): -
- Package: -
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2N3904 NPN transistor, Utsource
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.
| Pin | Designation | Descriptive |
|---|---|---|
| 1 | E (Emitter) | Connect to ground (GND) or the negative terminal of the power supply |
| 2 | B (Base) | Control of transistor conduction |
| 3 | C (Collector) | Connect to the positive terminals of the load and power supply |
Note: Be sure to identify the pins (emitter, base, collector) correctly to avoid damage to the device caused by misconnecting the pins.
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