2SC5200 + 2SA1943 Complementary Power Transistor Pair The 2SC5200 (NPN) and 2SA1943 (PNP) are a high-performance complementary pair of power transistors designed for use in high-fidelity audio amplifiers, inverters, and power supply circuits. 📦 Features: High output current: Up to 15A continuous High voltage rating: 230V (collector-emitter) Excellent gain linearity and low distortion Complementary matched pair for push-pull Class AB amplifier designs Manufactured by reputable brands (Toshiba, etc.)