2SA1943, PNP Power Transistor, TO-264 Package

The 2SA1943 is a high-performance PNP epitaxial transistor from ON Semiconductor, widely used in audio and power amplifier applications. It is especially designed to deliver high output current, high voltage, and linear amplification with minimal distortion. Often paired with its NPN complement 2SC5200, it forms the backbone of many high-end audio systems. Its rugged construction and TO-264 package ensure stable operation even under heavy load conditions.

Key Features:

• High Current Capability: Can handle collector currents up to -17A.
• High Voltage Rating: Collector-emitter voltage of up to -250V.
• Excellent Linearity: Designed for high-fidelity audio with low total harmonic distortion (THD).
• Complement to 2SC5200: Ideal for use in complementary audio amplifier designs.
• High Power Dissipation: Capable of dissipating up to 150W with appropriate heatsinking.
• TO-264 Package: Sturdy high-power package for superior heat dissipation and reliability.

Additional Specifications:

• Mounting Style: Through Hole
• Maximum DC Collector Current (Ic): -17A
• Collector-Emitter Voltage (VCEO) Max: -250V
• Collector-Base Voltage (VCBO): -250V
• Emitter-Base Voltage (VEBO): -5V
• Power Dissipation: 150W
• Operating Temprature: -50+150°C