Transistors

Explore transistors for switching, amplification, power control and signal processing in electronic circuits. Find NPN and PNP bipolar transistors, power transistors, Darlington transistors and other semiconductor devices in different current, voltage and package options for repair, prototyping and electronic projects.

How to choose the right transistor

Choose a transistor according to its polarity or type, collector-emitter voltage, collector current, power dissipation, gain, switching speed and package. NPN and PNP bipolar transistors are widely used for amplification and switching, while power transistors are designed for circuits that require higher current or power handling.

Before ordering, check the exact part number, pin configuration, package type and electrical ratings in the datasheet. For replacement applications, compare the voltage, current, power, gain and frequency characteristics with the original component to ensure suitable electrical and mechanical compatibility.

For thermal management of power transistors and other high-dissipation components, explore the heatsinks category.