BD237 NPN Bipolar Medium Power Transistor 80V 2A TO-126 Package

BD237 NPN Bipolar Medium Power Transistor 80V 2A TO-126 Package

The BD237 is a medium-power NPN silicon transistor designed for amplification and switching applications requiring higher current handling. With a collector-emitter voltage of 80V and a collector current of up to 2A, it provides reliable operation, low saturation voltage, and high thermal stability.

Encased in a TO-126 package, the BD237 offers efficient heat dissipation, making it ideal for audio amplifiers, motor drivers, voltage regulators, and general-purpose medium-power circuits. It is suitable for complementary amplifier designs and other power control applications, providing consistent performance for both professional and hobbyist projects.

Click here to view related products

Features:

• Transistor Type: NPN Silicon
• Package: TO-126 (medium-power, high thermal efficiency)
• Collector-Emitter Voltage (V_CE): 80V
• Collector Current (I_C): 2A
• Power Dissipation (P_tot): Up to 25W (with proper heat sinking)
• DC Current Gain (hFE): 40–250 (typical range)
• Low Collector Saturation Voltage: Ensures efficient switching and amplification
• High Thermal Stability: Reliable operation in medium-power circuits
• Durable & Reliable: Suitable for long-term professional and hobbyist use

Applications:

• Audio Amplifiers: Medium-power output stages and driver stages
• Voltage Regulators: Ensures stable voltage and current supply
• Relay & Motor Drivers: Efficiently drives motors, solenoids, and relays
• Signal Amplification: Low- to medium-frequency analog signal applications
• Switching Circuits: Medium-power load switching with high reliability
• Complementary Circuits: Works well in push-pull amplifier designs
• Educational & Prototyping Projects: Ideal for experimentation and circuit prototyping

bd237-transistor-datasheet