TIP122 NPN Power Darlington Transistor 100V 5A TO-220 Package

TIP122 NPN Power Darlington Transistor 100V 5A TO-220 Package

The TIP122 is a high-voltage, high-current NPN Darlington power transistor designed for switching and medium-power amplification applications. With a collector-emitter voltage of 100V and a collector current of 5A, it delivers high current gain, low saturation voltage, and reliable operation.

Housed in a TO-220 package, the TIP122 provides efficient heat dissipation and robust performance, making it suitable for motor drivers, relay drivers, voltage regulators, power amplifiers, and industrial switching circuits. Its Darlington configuration ensures strong current amplification with minimal input drive, ideal for medium-to-high voltage applications.

Click here to view related products

Features:

• Transistor Type: NPN Power Darlington Transistor
• Package: TO-220 (compact and thermally efficient)
• Collector-Emitter Voltage (V_CE): 100V
• Collector Current (I_C): 5A
• Power Dissipation (P_tot): Up to 65W (with heatsink)
• High Current Gain (hFE): 1000–5000 (typical)
• Low Saturation Voltage: Efficient switching
• Thermally Stable: Reliable under heavy load
• Durable Construction: Suitable for professional and hobbyist use

Applications:

• Motor Drivers: High-voltage DC motor control in robotics and automation
• Relay and Solenoid Drivers: Efficient switching for high-current loads
• Audio Power Amplifiers: Medium-power amplifier stages
• Voltage Regulators & Power Supplies: Medium-current regulation for higher voltage circuits
• Industrial Switching Circuits: Reliable control of medium-to-high power loads
• Educational & Hobby Electronics: Projects requiring high voltage and high gain
• General-Purpose Amplification: Medium-power signal amplification in high-voltage circuits

tip120-transistor-datasheet