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PNP metal-can power transistor

MJ2955 Basic Circuit

Build a basic MJ2955 circuit with labeled pins, component values and connection guidance.

MJ2955 in a circuit

A modest resistor load with explicit buffered base drive.

MJ2955 PNP load switch with correctly named terminals.
12 V supply; 100 Ω ≥3 W load; 330 Ω base drive; 10 kΩ base-emitter return.

Connect it, step by step

Follow the component values and pin connections

Drive the base

Pull base below emitter through the resistor. The driver must return to +12 V to turn off.

Control current

Conventional current enters emitter and leaves collector.

Respect heat and voltage

Check safe operating area, drive current and cooling together; a current rating is not a guaranteed operating point.

Component view