ONSEMI 2SA1943 PNP Silicon Power Transistor, TO-264 Package

The ONSEMI 2SA1943OTU is a high-performance PNP epitaxial silicon power transistor, engineered for demanding audio and industrial applications. It delivers excellent gain linearity, which is crucial for achieving low total harmonic distortion (THD) in high-fidelity sound amplification. With its robust construction in a TO-264 package, this component is designed for high current capability and significant power dissipation, ensuring reliable operation under strenuous conditions.

This transistor is characterised by high voltage and high frequency performance, making it an ideal complement to the 2SC5200 and FJL4315 transistors in complementary output stages. Its specifications make it a cornerstone in professional-grade audio amplifiers and robust industrial control systems where power and precision are paramount.

Key Features & Specifications

• Transistor Polarity: PNP
• Maximum Collector-Emitter Voltage (Vce): 250V
• Continuous Collector Current (Ic): 17A
• Power Dissipation: 150W
• Package / Case Style: TO-264 (Through-Hole Mounting)
• Number of Pins: 3
• Transition Frequency: 30MHz
• Minimum DC Current Gain (hFE): 80
• Maximum Operating Temperature: 150°C
• Construction: Epitaxial Silicon

Please note that market demand for this high-performance component can impact lead times, which may fluctuate.