C1971 Transistor – 17V, 2A, NPN, Equivalent, 2SC1971 ( PDF )

Part Number: C1971, 2SC1971

Function: 17V, 2A, Silicon NPN Transistor

Package: TO-220 Type

Manufacturer: Mitsubishi Electric Semiconductor


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C1971 image


The C1971 is a silicon NPN epitaxial planar type transistor designed for RF power amplifers on VHF band mobile radio applications.

A Silicon NPN Epitaxial Planar Transistor 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.

Silicon NPN Epitaxial Planar Transistors are fundamental components in electronic circuits, playing a crucial role in amplification, signal processing, and digital logic. They are widely used in a vast array of electronic devices, including radios, amplifiers, computer processors, and many other applications where signal control and amplification are essential.


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Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 35 V

2. Collector to Emitter Voltage: Vceo = 17 V

3. Emitter to Base Voltage: Vebo = 4 V

4. Collector Current: Ic = 2 A

5. Collector Dissipation : Pc = 1.5 W

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -55 ~ +150°C


1. 4 to 5 watts ouput power amplifiers in VHF band applications.

C1971 PDF Datasheet