BD179 NPN Silicon Power Transistor

The BD179 is an NPN silicon power transistor designed for use in medium power linear and switching applications. It is the NPN complement to the BD180 PNP transistor, making them a common pair for complementary symmetry audio output stages and push-pull amplifiers. With a collector current rating of 3.0 Amperes and a voltage limit of 80 Volts, it is a reliable choice for power regulation, motor control, and driver circuits in both consumer and industrial electronics. The TO-126 package is compact yet allows for easy attachment to a small heat sink, which is necessary when the device is expected to handle significant power loads. Its balanced performance characteristics make it a versatile component for general purpose power management tasks.

Key Features:

Continuous collector current (IC) capability of 3.0 Amperes.

Total power dissipation (Ptot) of 30 Watts at 25 degrees Celsius case temperature.

DC current gain (hFE) typically ranging from 40 to 250.

High transition frequency (fT) of 3.0 Megahertz.

Standard TO-126 plastic package for medium power applications.