
Transistor/MOSFET
BC337 NPN Transistor
The BC337 is a general-purpose NPN bipolar junction transistor (BJT) in a TO-92 package, ideal for low-power amplification and switching applications up to 45V and 800mA.
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About BC337 NPN Transistor
The BC337 is a widely used NPN epitaxial silicon transistor designed for general-purpose amplification and switching tasks. It features a maximum collector-emitter voltage of 45V and a continuous collector current of 800mA, making it suitable for driving relays, LEDs, and other low-power loads. With a high DC current gain (hFE) ranging from 100 to 630, it is excellent for audio pre-amplifiers, signal processing, and interface circuits. The transistor is housed in a standard TO-92 package, ensuring easy integration into breadboards and PCBs. Its robust operating temperature range of -55°C to +150°C allows for use in various environments. Choose the BC337 for reliable performance in hobbyist electronics, educational projects, and industrial control systems where dependable switching and amplification are required.
Technical Specifications
| Transistor Type | NPN |
|---|---|
| Maximum Collector-Emitter Voltage (Vceo) | 45V |
| Maximum Collector-Base Voltage (Vcbo) | 50V |
| Maximum Emitter-Base Voltage (Vebo) | 5V |
| Maximum Continuous Collector Current (Ic) | 800mA |
| Power Dissipation (Pd) | 625mW |
| DC Current Gain (hFE) | 100 to 630 |
| Operating Temperature Range | -55°C to +150°C |
| Package / Case | TO-92 |
| Thermal Resistance, Junction-to-Ambient (RθJA) | 200 °C/W |
Alternative Components
BC547
BC548
2N2222
BC338









