BC147 PDF Datasheet – 45V, 200mA, NPN Transistor

This post explains for the transistor.

The Part Number is BC147, BC148, BC149.

The function of this semiconductor is NPN Transistor.

Manufacturer: Siemens, ETC, Mullard


BC147 datasheet


BC147 is 45V, 200mA, NPN Transistor. A NPN transistor is a type of bipolar junction transistor (BJT) that consists of two n-type semiconductor materials separated by a single p-type material.

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.

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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BC147 image

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 50 V

2. Collector to Emitter Voltage: Vceo = 45 V

3. Emitter to Base Voltage: Vebo = 6 V

4. Collector Current: Ic = 200 mA

5. Total Dissipation : Ptot = 300 mW

6. Junction Temperature: Tj = 125°C

7. Storage Temperature: Tsg = -55 ~ +125°C

BC147 PDF Datasheet

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