2N5551 NPN High Voltage TO92 Amplifier Transistor - Pack of 5
2N5551 NPN High Voltage TO92 Amplifier Transistor - Pack of 5
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The 2N5551 is an NPN bipolar junction transistor built for small-signal amplification and switching in low-power circuits. Housed in the familiar TO-92 through-hole case, it drops straight into breadboards, perfboards, and hobby PCBs without any special handling. This listing is a pack of 5, so you have spares on hand for prototyping, repairs, or classroom batches.
- Package: TO-92, 3-pin through-hole
- Polarity: NPN bipolar junction transistor
- Collector-emitter voltage (VCEO): 40V
- Use: general-purpose amplification and switching
- Pack size: 5 transistors
Popular with Indian electronics students and hobbyists for audio preamp stages, relay driver circuits, and Arduino/ESP32 side projects where a simple NPN switch is needed. Also handy for repair technicians restocking a component drawer for board-level fixes.
Country of origin: India