C3953 PDF Datasheet – 120V, NPN Transistor – 2SC3953

This post explains for the transistor.

The Full Part Number is C3953, 2SC3953.

The function of this semiconductor is 120V, NPN Transistor.

The package is TO-126ML type

The manufacturers of this product is Sanyo Semicon Device.

See the preview image and the PDF file for more information.


Preview images :

C3953 pinout datasheet


The C3953 is 120V, 200mA, NPN Epitaxial Planar Silicon Transistor.

An NPN Epitaxial Planar Silicon Transistor is a specific type of transistor that belongs to the NPN configuration and is fabricated using an epitaxial planar process with silicon as the semiconductor material.

This transistor is commonly used in electronic circuits for various applications such as amplification, switching, and signal processing.


1. High fT : fT=400MHz.
2. High breakdown voltage : VCEO=120Vmin.
3. Small reverse transfer capacitance and excellent HF response : Cre=1.7pF/NPN, 2.2pF/PNP.
4. Complementary PNP and NPN types.
5. Adoption of FBET process.
6. Micaless type : TO-126 plastic package

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 120 V
2. Collector to Emitter Voltage: Vceo = 120 V
3. Emitter to Base Voltage: Vebo = 3 V
4. Collector Current: Ic = 200 mA
5. Collector Dissipation: Pc = 1.3 W
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -55 ~ +150°C


1. High-definition CRT display video output, wide-band  amplifier.

C3953 pdf transistor

Frequently used NPN transistors

C3953 PDF Datasheet


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