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TIP121 Darlington Transistor
Transistor/MOSFET
Transistor/MOSFETDarlington TransistorNPNTO-220Motor Driver

TIP121 Darlington Transistor

The TIP121 is a high-power NPN Darlington transistor capable of handling up to 5A collector current and 80V collector-emitter voltage. It features high current gain (hFE) and is housed in a standard TO-220 package, making it ideal for driving motors, relays, and lighting circuits.

₹18.00

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₹18.00

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Category

Transistor/MOSFET

Quality

100% Genuine

About TIP121 Darlington Transistor

The TIP121 is a monolithic NPN Darlington transistor manufactured by STMicroelectronics, designed for medium-power switching and amplification applications. It consists of two bipolar transistors connected in a Darlington configuration, providing very high current gain (typically 1000 or more), which allows it to be driven directly by low-current microcontroller outputs. This transistor is housed in a TO-220 package, ensuring easy mounting and efficient heat dissipation. Key features include a maximum collector-emitter voltage of 80V, a continuous collector current of 5A, and a power dissipation of 65W. It is widely used in applications such as motor drivers, relay controllers, solenoid actuation, and lighting dimmers. The TIP121 is a complementary pair to the TIP127 (PNP version). Choosing the TIP121 ensures reliable performance, high durability, and compatibility with a wide range of industrial and hobbyist electronics projects available in the Indian market.

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