TIP146 PNP Darlington Power Transistor TO-220
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Prices updated: 14 Oct 2026
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About this product
The TIP146 is a PNP Darlington power transistor in a TO-220 package, designed as the complement of the TIP141 for power driving and switching. The Darlington structure gives high current gain, so small base currents can switch loads of several amps. Mount it on a heatsink for higher power use.
Specifications
- Transistor type
- PNP Darlington
- Package
- TO-220
- Complement of
- TIP141 (NPN Darlington)
- Max collector-emitter voltage (Vceo)
- 100 V
- Max collector current (Ic)
- 10 A
- Max power dissipation (Ptot)
- 125 W
Frequently asked questions
What is the TIP146 pin order in the TO-220 package?
The TIP series in TO-220 is usually Base, Collector, Emitter when the front face is toward you and the leads point down. Confirm this on the datasheet, since the TO-220 tab is connected to the collector.
Does the TIP146 need a flyback diode for inductive loads?
Yes, when switching inductive loads such as motors, relays or solenoids, add a flyback diode across the load to protect the transistor from voltage spikes. Also use a heatsink and a suitable base drive for reliable switching.
