C3421 Datasheet PDF – 120V, 1A, NPN Transistor – Toshiba

Part Number: C3421, 2SC3421

Function: 120V, 1A, NPN Transistor

Package: TO-126 Type

Manufacturer: Toshiba

C3421 transistor


The C3421 is 120V, 1A, Silicon NPN Epitaxial Type Transistor ( PCT Process ).

The NPN transistor is used to amplify or switch electronic signals and is widely used in many electronic circuits. It works by controlling the current flow between the collector and emitter terminals through the base terminal.

When a small current is applied to the base, it controls a much larger current between the collector and emitter, making the NPN transistor an effective amplifier or switch.


1. Complementary to 2SA1358

2. Suitable for Driver of 60 to 80 Watts Audio Amplifer

3. High Breakdown Voltage



C3421 datasheet pinout


Maxmimum Ratings ( Ta = 25°C )

1. Collector-Base Voltage: Vcbo = 120V

2. Collector-Emitter Voltage: Vceo = 120V

3. Emitter-Base Voltage: Vebo = 5V

4. Collector Current: Ic = 1A

5. Base Current : Ib = 100mA



1. Audio Frequency Power Amplifier


C3421 Datasheet PDF


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