amplifier circuit diagram using transistor

This is an amplifier circuit diagram using transistors. Here, 2sc5200 and 2sa1943 transistors are used. These transistors can make an output of a maximum of 180 watts. The pair of 2SC5200 transistors and 2SA1943 transistors are very popular power transistors used in audio amplifiers. 

1 Pair (2SC5200 + 2SA1943) transistoes can make 

Using ±35V supply → about 80W – 100W RMS (8Ω). Using ±45V supply → about 120W – 150W RMS (8Ω). Using ±50V supply → up to 150W – 180W RMS (8Ω). 

A very important Factor is:

• Heatsink size (so important 🔥)
• Transformer & power supply quality must be of the best quality. 
• Driver circuit (e.g., proper biasing and all components are of quality)
• Speaker impedance (4Ω vs 8Ω)
• A cooling fan is recommended for the heatsink and transformer. 

The 2SC5200 transistor is an NPN bipolar junction 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. 

The 2SA1943 transistor is a PNP bipolar junction transistor.

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  Amplifier circuit diagram using transistors 2SC5200 and 2SA1943. It’s so easy amplifier circuit diagram. here no need for dual voltage. This circuit runs with only negative and positive voltages. We can use a 12-volt battery to run this circuit. For this, we can also use this circuit in a car. We can also use another transistor. like TIP31 and TIP21. any type of PNP and NPN transistors. 

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