TIP122 NPN Power TransistorSKU 13004

Transistors & IC

TIP122 NPN Power Transistor

₹14

01 — About

What it does

The TIP122 NPN Power Transistor is a Darlington pair transistor capable of switching higher current loads up to 5A. It is ideal for driving motors, solenoids, relays, and other power-hungry DC loads from microcontroller outputs.

Key features

  • NPN Darlington pair
  • High current capability (5A max)
  • High gain (hFE: 1000+)
  • TO-220 package for heatsink mounting
  • 100V VCEO rating
  • Built-in base-emitter resistors
  • Logic-level drivable from 5V MCU

Good to know

  • Heatsink REQUIRED for currents above 1A
  • High VCE(sat) means significant heat at high current
  • Consider MOSFET for better efficiency in switching applications
  • Built-in snubber diodes not included – add for inductive loads
  • TO-220 tab is connected to collector – insulate if needed

02 — Datasheet

Specifications

07
Type
NPN Darlington
Max VCEO
100V
Max IC
5A
Power Dissipation
65W (with heatsink)
hFE (gain)
1000 minimum
Package
TO-220
VCE(sat)
~2V at 3A