onsemi

MJL21193

MJL21193 Description

The MJL21193 from onsemi is a high-power PNP bipolar junction transistor (BJT) designed for demanding switching and amplification applications. With a collector-emitter voltage (V_CE) rating of 250V and a maximum collector current (I_C) of 16A, this transistor is engineered to handle substantial power loads, making it suitable for industrial and high-voltage circuits. Its 4MHz transition frequency ensures efficient performance in medium-speed switching applications. Packaged in a TO-264 (TO-3P variant) through-hole mount, the MJL21193 offers robust thermal and electrical characteristics, supporting a maximum power dissipation of 200W.

MJL21193 Features

• High Voltage & Current Handling: 250V V_CE and 16A I_C make it ideal for power regulation and motor control.
• Low Saturation Voltage: 4V @ 3.2A base current (I_B) and 16A I_C, reducing power loss in switching applications.
• High DC Current Gain (h_FE): Minimum 25 @ 8A, 5V, ensuring reliable amplification.
• Thermally Efficient: TO-264 package enhances heat dissipation for sustained high-power operation.
• Compliance & Reliability: REACH unaffected, EAR99 (export-friendly), and MSL 1 (unlimited shelf life).

MJL21193 Applications

• Power Supplies: High-efficiency linear and switching regulators.
• Audio Amplifiers: Robust output stages in high-fidelity audio systems.
• Motor Drives: Control circuits for industrial motors and actuators.
• Inverters & Converters: High-voltage DC-AC or DC-DC conversion.
• Industrial Automation: Reliable switching in PLCs and heavy machinery.

Conclusion of MJL21193

The MJL21193 stands out as a high-performance PNP transistor for power electronics, combining high voltage tolerance, low saturation loss, and thermal resilience. While obsolete, its proven reliability in audio, industrial, and power systems makes it a preferred choice for legacy designs or replacements. Engineers value its balance of gain, speed, and power handling, though modern alternatives may offer improved efficiency in newer designs. For high-power, through-hole applications, the MJL21193 remains a robust solution.