The 2SA1402 is a PNP Epitaxial Planar Silicon Transistor manufactured by SANYO Semiconductor. It is designed for use in audio frequency power amplifier applications and high-speed switching circuits.

Applications

• Audio Power Amplifiers
• High-Speed Switching Circuits
• Driver Stages for Audio Amplifiers
• Voltage Amplifiers
• Current Amplifiers

Features

• Transistor Type: PNP
• Package Type: TO-220AB
• Collector-Emitter Voltage (Vceo): -160V
• Collector Current (Ic): -1.5A
• Power Dissipation (Pc): 20W
• DC Current Gain (hFE): 70 to 240 (at Ic = -0.5A, Vce = -5V)
• Transition Frequency (fT): 50 MHz

Benefits

• High Voltage: Vceo of -160V allows for use in high-voltage circuits.
• Moderate Current: Ic of -1.5A is suitable for moderate power applications.
• Good Gain: hFE range of 70-240 provides adequate amplification.
• Reliable Performance: SANYO is known for producing reliable transistors.
• Easy to Mount: TO-220 package is easy to heatsink for thermal management.

Additional Details

The 2SA1402 transistor is housed in a TO-220AB package, which allows for easy mounting and heatsinking to manage thermal dissipation. Its high collector-emitter voltage rating makes it suitable for applications involving higher voltages. The DC current gain ensures sufficient amplification for audio amplifier and switching applications. It's a common choice for designers needing a reliable PNP transistor for power amplification.