BD179 NPN Power Transistor – Datasheet

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The BD179 is a silicon epitaxial planar NPN transistor in Jedec SOT-32 plastic package, designed for medium power linear and switching applications

Power Transistor?

Transistors are three-terminal semiconductor electronic devices that can be used as switches or amplifiers. They can be of NPN or PNP polarity, and many different types are available with different power and switching speed ratings. If a transistor designed to these concepts can handle more than 1 A of collector current, it is generally considered to be a power transistor. Such transistors must have low output resistance to deliver large load currents, and good junction insulation to resist high voltages. They must also dissipate heat very quickly to avoid overheating.

BD179 Pinout

BD179 Pin Configuration

Pin NoPin Name
1Base
2Collector
3Emitter

BD179 Key Features

  • DC Current Gain – hFE = 40 (Min) @ IC = 0.15 Ad
  • DC Current Gain-
    • : hFE= 40-250(Min)@ IC= 0.15A
  • Collector-Emitter Sustaining Voltage –
    • : VCEO(SUS)= 80V(Min)
  • Type Designator: BD179
  • Material of Transistor: Si
  • Polarity: NPN

BD179 Specification

Ic (mA)Vce (max)Vcb hfe@IcFT
3808040-2501503

BD179 Equivalent/Alternate:

  • BD115, BD130, BD131, BD132, BD135, BD180

Application

  • General Purpose Switching
  • Power Linear And Switching

You can download this datasheet for BD179 NPN Power Transistor from the link given below: