
Transistor/MOSFET
BC338 NPN Transistor
The BC338 is a general-purpose NPN bipolar junction transistor (BJT) in a TO-92 package, designed for low-power switching and amplification applications. With a maximum collector current of 800mA and voltage rating of 25V, it is ideal for Arduino projects, prototyping, and educational electronics.
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About BC338 NPN Transistor
The BC338 is a widely used NPN epitaxial silicon transistor, packaged in a standard TO-92 form factor. It is designed for general-purpose amplification and switching tasks in low-power electronic circuits. This transistor features a maximum collector current (IC) of 800mA and a collector-emitter voltage (VCEO) of 25V, making it suitable for driving relays, LEDs, and small motors in hobbyist and educational projects. Key characteristics include a DC current gain (hFE) ranging from 100 to 600, a transition frequency (fT) of 100MHz, and low saturation voltage. Its robust design ensures reliable performance in prototyping environments like Arduino and Raspberry Pi interfaces. Common applications include audio pre-amplifiers, signal processing, logic gates, and driver stages in power supplies. Choose the BC338 for its cost-effectiveness, wide availability, and compatibility with numerous circuit designs. It is an excellent choice for hobbyists, students, and engineers looking for a dependable, general-purpose NPN transistor for breadboarding and PCB assembly.
Technical Specifications
| Package Type | TO-92 |
|---|---|
| Transistor Type | NPN |
| Maximum Collector Current (IC) | 800mA |
| Collector-Emitter Voltage (VCEO) | 25V |
| Emitter-Base Voltage (VEBO) | 5V |
| Collector-Base Voltage (VCBO) | 30V |
| DC Current Gain (hFE) | 100 - 600 |
| Transition Frequency (fT) | 100MHz |
| Power Dissipation (Pd) | 0.625W |
| Output Capacitance (Cobo) | 12pF |
| Operating Temperature Range | -55°C to +150°C |
| Pin Configuration | Emitter, Base, Collector (Standard TO-92) |
Alternative Components
BC337
2N2222
BC547
2N3904









