TIP31 NPN Power Transistor 100V 3A General Purpose BJT | TO-220 Power Transistor | Xinbole

xinbole

The TIP31 from Xinbole is a reliable NPN power transistor designed for general-purpose medium-power switching and amplification applications. With a collector-emitter voltage rating of up to 100V and a continuous collector current capability of up to 3A, it is widely used in motor drivers, power amplifiers, relay circuits, and industrial control systems requiring stable and efficient performance.

Built using robust bipolar junction transistor (BJT) technology, the TIP31 delivers good current gain, fast switching response, and low saturation voltage, ensuring efficient power control with minimal energy loss. It provides stable thermal performance and high reliability under varying load conditions. Compared to lower TIP series devices, the TIP31 offers higher voltage tolerance, improved current handling, and better durability for demanding electronic applications.

The TO-220 package ensures excellent thermal dissipation, making it suitable for medium-power applications where heat management is critical. When paired with a proper heat sink, it supports continuous operation with stable electrical performance even under heavy load conditions.

With its strong electrical characteristics, rugged design, and versatile performance, the TIP31 is widely used in both industrial and consumer electronics for efficient power switching and amplification tasks.

Key Features:

  • NPN power transistor (BJT type)
  • High voltage rating up to 100V
  • Continuous current up to 3A
  • Good current gain and switching performance
  • Low saturation voltage for efficiency
  • TO-220 package for excellent thermal management

Applications:

  • DC motor control circuits
  • Relay and solenoid drivers
  • Audio amplifier stages
  • Power switching circuits
  • Industrial automation systems
  • General-purpose electronic control systems