onsemi

MJL1302A

MJL1302A Description

The MJL1302A from onsemi is a high-power PNP bipolar junction transistor (BJT) designed for demanding switching and amplification applications. With a collector-emitter breakdown voltage (V_CEO) of 260V and a maximum collector current (I_C) of 15A, it delivers robust performance in high-voltage circuits. The transistor features a low collector-emitter saturation voltage (V_CE(sat)) of 3V @ 1A, 10A, ensuring efficient power handling with minimal losses. Its DC current gain (h_FE) of 75 @ 5A, 5V provides stable amplification characteristics, making it suitable for linear and switching applications. Packaged in a TO-264 (TO-3P) through-hole format, the MJL1302A is optimized for heat dissipation, supporting a maximum power dissipation of 200W.

MJL1302A Features

• High Voltage & Current Handling: 260V V_CEO and 15A I_C for robust power applications.
• Low Saturation Voltage: 3V @ 10A ensures efficient switching with reduced power loss.
• High Power Dissipation: 200W rating enables reliable operation in high-stress environments.
• Stable Gain Characteristics: h_FE of 75 @ 5A, 5V for consistent amplification.
• Through-Hole TO-264 Package: Optimized for thermal management and mechanical durability.
• Low Leakage Current: Collector cutoff current (I_CBO) of just 50µA, enhancing efficiency.
• REACH & ECCN Compliance: REACH unaffected and EAR99 classification for global usability.

MJL1302A Applications

The MJL1302A excels in high-power switching and amplification circuits, including:

• Audio Amplifiers: High-fidelity output stages in Class AB/B designs due to low distortion and high current capability.
• Power Supplies: Switching regulators and inverters requiring high-voltage PNP transistors.
• Motor Control: Driver stages in industrial motor controllers and servo amplifiers.
• Industrial Equipment: Relays, solenoids, and inductive load switching with robust thermal performance.
• Obsolete Replacement: Suitable for legacy systems requiring high-reliability PNP transistors.

Conclusion of MJL1302A

The MJL1302A is a high-performance PNP transistor offering exceptional voltage/current ratings, low saturation losses, and reliable thermal characteristics. While marked as obsolete, it remains a viable choice for high-power designs where durability and efficiency are critical. Its TO-264 package ensures compatibility with heat sinks, making it ideal for audio, power conversion, and industrial control systems. Engineers seeking a proven, high-power PNP solution will find the MJL1302A a dependable option despite its discontinued status.