A23 2SA1358 PNP Power Transistor - 120V 1A High-Definition Audio Transistor

The 2SA1358 (marked A1358) is a high-performance PNP epitaxial silicon transistor designed primarily for high-definition audio power amplification and video output stages. Housed in the TO-220F (Full Pack) insulated package, this transistor offers excellent heat dissipation while being electrically isolated, eliminating the need for separate insulation mounting hardware.

This transistor is highly valued for its high collector-emitter voltage ($120\text{V}$) and exceptional linearity. It is frequently used as a driver stage or in the power output section of high-fidelity audio equipment. For balanced performance, it is the perfect complementary pair to the 2SC3421 NPN transistor.

Key Features & Specifications

• Type: PNP Silicon Transistor.

• Collector-Emitter Voltage ($V_{CEO}$): -120V.

• Collector Current ($I_C$): -1A (Continuous).

• Collector Power Dissipation ($P_C$): 10W (with heat sink).

• Package: TO-220F (Fully Insulated).

• DC Current Gain ($h_{FE}$): 80 to 240 (Y-grade).

• Transition Frequency ($f_T$): 120MHz (Typical).

• Complementary Part: 2SC3421.

Applications

• Audio Amplifiers: Ideal for driver stages and low-to-medium power output stages.

• Video Output: High-voltage switching in CRT and high-definition display drivers.

• Voltage Regulation: Used in series regulator circuits for stable power delivery.

• General Purpose Switching: Reliable performance in industrial control circuits.

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