2SC4793 (NPN) and 2SA1837 (PNP) complementary transistors designed for audio power amplifier driver and voltage amplification stage (VAS) applications. These high-voltage transistors provide low distortion and high-frequency performance, making them suitable for high-fidelity amplifier circuits. They are commonly used as a complementary driver pair for balanced and stable amplifier operation.
Electrical Characteristics:
Collector-emitter voltage: ±230 V
Collector current: up to 1 A
Power dissipation: up to 20 W
DC current gain (hFE): 100 to 320
High transition frequency: ~100 MHz (2SC4793), ~70 MHz (2SA1837)
Package:
TO-220 style through-hole package
Construction:
Silicon epitaxial transistor design
Complementary matched pair
High voltage and high frequency capability
Configuration Notes:
Designed for audio amplifier driver and VAS stages
Provides stable, low distortion amplification
Complementary operation ensures symmetrical performance
Intended Use:
Audio power amplifier driver stage
Voltage amplification stage (VAS)
Hi-Fi amplifier circuits
DIY and professional audio applications
