C4140 Transistor Datasheet – 400V, 18A, NPN – Sanken

Part Number: C4140, 2SC4140

Function:  400V, 18A, NPN Transistor

Package: MT-100(TO3P) Type

Manufacturer: Sanken, SavantIC


C4140 Transistor sanken


C4140 is 400V, 18A, Silicon NPN Triple Diffused Planar Transistor.

This is a type of bipolar junction transistor (BJT) made from silicon, a semiconductor material. This transistor is designed for amplifying or switching electronic signals in various electronic circuits.

NPN Configuration:

1. Emitter (N): The heavily doped N-type layer, which is the source of charge carriers (electrons) in the transistor.

2. Base (P): The thin P-type layer, which controls the flow of charge carriers between the emitter and collector.

3. Collector (N): The N-type layer, which collects the charge carriers that pass through the base-emitter junction.


1. High Voltage

2. High Speed Switching Transistor


c4140 pinout datasheet

Absolute Maximum Ratings

1. Collector-base voltage : Vcbo = 500 V

2. Collector-emitter voltage : Vceo = 400 V

3. Emitter-base voltage : Vebo = 10 V

4. Collector current : Ic = 18 A

5. Collector power dissipation : Pc = 130 W


1. Switching Regulator and General Purpose


C4140 Transistor Datasheet PDF


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