onsemi

MJE5731G

MJE5731G Description

The MJE5731G from onsemi is a high-voltage PNP bipolar junction transistor (BJT) designed for robust performance in demanding electronic circuits. With a collector-emitter breakdown voltage (V_CE) of 350V and a maximum collector current (I_C) of 1A, this transistor is engineered for applications requiring efficient power handling and reliable switching. Packaged in a TO-220 through-hole mount, the MJE5731G offers excellent thermal dissipation, supporting a maximum power rating of 40W. Its low collector cutoff current (1mA max) and DC current gain (h_FE) of 30 @ 300mA, 10V ensure stable amplification and switching characteristics.

MJE5731G Features

• High Voltage Capability: 350V V_CE rating for high-voltage circuit designs.
• High Current Handling: 1A continuous collector current for power applications.
• Low Saturation Voltage: 1V max @ 200mA base current and 1A collector current, reducing power losses.
• Robust Thermal Performance: TO-220 package with 40W power dissipation for reliable operation.
• Wide h_FE Range: Ensures consistent gain across operating conditions.
• RoHS3 & REACH Compliant: Environmentally friendly and suitable for global markets.
• 10MHz Transition Frequency: Suitable for moderate-speed switching applications.

MJE5731G Applications

The MJE5731G is ideal for:

• Power Supply Circuits: High-voltage regulation and switching in offline power supplies.
• Motor Control: Driver stages in PNP-based motor control systems.
• Audio Amplifiers: Output stages in high-voltage audio amplifiers.
• Industrial Switching: Relay drivers, solenoid controls, and inductive load switching.
• Lighting Systems: Ballast and LED driver circuits requiring high-voltage PNP transistors.

Conclusion of MJE5731G

The MJE5731G stands out as a high-voltage PNP transistor with a balanced combination of power handling, low saturation loss, and thermal efficiency. Its TO-220 package ensures easy integration into through-hole designs, while its RoHS3 compliance makes it suitable for modern eco-conscious applications. Whether used in power supplies, motor drives, or industrial controls, the MJE5731G delivers reliable performance in high-voltage environments, making it a preferred choice for engineers seeking durability and efficiency.