This post explains for the transistor.
The Part Number is A1943, 2SA1943.
The Package is TO-3P Type
The function of this semiconductor is 230V, PNP Transistor.
Manufacturer: Toshiba
Description
The A1943 is Silicon PNP Triple Diffused Transistor.
A silicon PNP triple-diffused transistor with a voltage rating of -230V and a current rating of -15A refers to a specific type of bipolar junction transistor (BJT) designed for high-voltage and high-current applications. Let’s break down the specifications:
1. PNP Type: The transistor is a PNP (Positive-Negative-Positive) transistor, which means it has three layers of semiconductor material: a lightly doped N-region sandwiched between two heavily doped P-regions. In a PNP transistor, current flows from the emitter (E) to the base (B) and then to the collector (C) when a small current is applied to the base.
2. Voltage Rating: The transistor has a maximum voltage rating of 230 volts (V). This means it can handle a maximum voltage of 230V in its operating conditions without the risk of damage.
3. Current Rating: The transistor has a maximum current rating of 15 amperes (A). This specifies the maximum continuous current that can flow through the transistor without exceeding its current handling capacity.
Features:
• High collector voltage: VCEO = −230 V (min)
• Complementary to 2SC5200
• Recommended for 100-W high-fidelity audio frequency amplifier output stage.
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage: Vcbo = – 230 V
2. Collector to Emitter Voltage: Vceo = – 230 V
3. Emitter to Base Voltage: Vebo = – 5 V
4. Collector Current: Ic = – 15 A
5. Collector Power Dissipation : Pc = 150 W
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -55 ~ +150°C
Applications:
1. Power Amplifier
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A1943 PDF Datasheet
