A1275 PDF Datasheet – 2SA1275, 160V, 1A, PNP Transistor

This post explains for the PNP transistor.

The Part Number is A1275, 2SA1275.

The package is TO-92MOD Type.

The function of this semiconductor is -160V, -1A, PNP Transistor.

Manufacturer: KEC


A1275 datasheet transistor


A1275 is 160V, 1A, PNP Transistor. A PNP transistor is one of the semiconductor components used in electrical engineering and electronic circuit design, belonging to the Bipolar Junction Transistor (BJT) family. The PNP transistor consists of three layers of semiconductor material: P-type, N-type, and P-type, each with different charges. The name PNP transistor stands for “Positive-Negative-Positive,” reflecting the characteristics of these three semiconductor layers.

PNP Configuration:

1. Emitter: The emitter is the first layer and is made of P-type semiconductor material. The emitter serves as the primary source of current.

2. Base: The base is the second layer and is made of N-type semiconductor material. The base controls the current between the emitter and collector.

3. Collector: The collector is the third layer and is made of P-type semiconductor material. The collector collects the current, which flows from the emitter through the base.



1. High Voltage: Vceo = -160 V

2. Large Continous Collector Current Capability.

3. Recommeded for Vert. Deflection Output & Sound Output Applications for Line Operated TV.

4. Complementary to 2SC3228

A1275 pdf pinout

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = – 160V

2. Collector to Emitter Voltage: Vceo = – 160V

3. Emitter to Base Voltage: Vebo = – 6V

4. Collector Current: Ic = – 1A

5. Total Dissipation : Pc = 900 mW

6. Junction Temperature: Tj = 150°C

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



1. Color TV Vert. Deflection Output.

2. Color TV Class B Sound Ouput

A1275 PDF Datasheet