2sc5200 and 2sa1943 transistor amplifier circuit diagram

Electronics Help Care May 7, 2026 Amplifier Diagram

This is a 2sc5200 and 2sa1943 transistor amplifier circuit diagram. Here, 8 transistors are used. 4 pairs of transistors, one pair of transistors can make 150 watts. A 4-pair transistor can make 4X150=600 watts. This circuit can make 600 watts. The maximum current is 15A. Safe continuous current is around 6A to 10A per transistor. We know voltage X amperes = watts. If we use 60 volts and 10 amperes. Then we can get 60X10=600watts. The battery is 50 volts and 10 amperes in this circuit.

Here, 2SC5200 and 2SA1943 transistors are used. We can also use another transistor. 2sc5200 is a positive transistor, and 2sa1943 is a negative transistor.

Basic Specification for 2sc5200

Transistor Type is NPN Power Transistor
Transistor Collector-Emitter Voltage (Vceo): 230V
Transistor Collector-Base Voltage (Vcbo): 230V
Transistor Emitter-Base Voltage (Vebo): 5V
Transistor Collector Current (Ic): 15A
The Power Dissipation (Pc): 150W
The transistor Gain (hFE): 55 – 160
Transition Frequency is (fT): ~30 MHz.

Basic Specification for 2sa1943

Transistor Type is PNP Power Transistor
Transistor Collector-Emitter Voltage (Vceo): 230V
Transistor Collector-Base Voltage (Vcbo): 230V
Transistor Emitter-Base Voltage (Vebo): 5V
Transistor Collector Current (Ic): 15A
The Power Dissipation (Pc): 150W
The transistor Gain (hFE): 55 – 160
Transition Frequency is (fT): ~30 MHz.

This is an audio equalizer circuit diagram for an amplifier. Every amplifier needs this type of circuit board. Here, we get 4 volumes for the main volume. one for the bass volume. one for the mid-range. another one for the treble volume. It’s a mono circuit diagram board. A stereo needs a dual circuit board.