This post explains for the transistor.
The Full Part Number is 2SC3421, C3421.
The function of this semiconductor is 120V, 1A, NPN Transistor.
The manufacturers of this product is Toshiba Semiconductor.
See the preview image and the PDF file for more information.
Preview images :
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Description
The C3421 is 120V, 1A, Silicon NPN Epitaxial 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.
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.
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.
Features
• Complementary to 2SA1358
• Suitable for driver of 60 to 80 watts audio amplifier
• High breakdown voltage
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Absolute Maximum Ratings
1. Collector-base voltage : VCBO = 120 V
2. Collector-emitter voltage : VCEO = 120 V
3. Emitter-base voltage : VEBO = 5 V
4. Collector current : IC = 1 A
5. Base current : IB = 100 mA
Applications:
1. Audio Frequency Power Amplifier
C3421 PDF Datasheet
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