onsemi Tariff Inquiry

MJF31CG

MJF31CG Description

The MJF31CG from onsemi is a high-performance NPN bipolar junction transistor (BJT) designed for robust switching and amplification applications. Housed in a TO-220FP package, it offers a collector-emitter voltage (Vce) rating of 100V and a maximum collector current (Ic) of 3A, making it suitable for medium-power circuits. With a transition frequency of 3MHz, it balances speed and efficiency, while its low Vce saturation voltage (1.2V @ 375mA, 3A) ensures minimal power loss during operation. Compliant with ROHS3 and REACH standards, this transistor is ideal for environmentally conscious designs.

MJF31CG Features

• High Voltage & Current Handling: Supports 100V Vce and 3A Ic, enabling use in power regulation and motor control.
• Low Saturation Voltage: 1.2V @ 3A reduces heat dissipation, improving efficiency.
• Fast Switching: 3MHz transition frequency for responsive performance in switching applications.
• Robust Gain: DC current gain (hFE) of 10 @ 3A, 4V ensures stable amplification.
• Durable Packaging: TO-220FP provides mechanical strength and thermal performance for through-hole mounting.
• Compliance: ROHS3, REACH Unaffected, and EAR99 certified for global usability.

MJF31CG Applications

The MJF31CG excels in:

• Power Supplies: Linear regulators and DC-DC converters due to its high voltage tolerance.
• Motor Drivers: Efficient control of brushed DC motors in industrial and automotive systems.
• Audio Amplifiers: Medium-power audio stages with its balanced gain and low distortion.
• Switching Circuits: Reliable performance in relay drivers and inductive load switches.
• Automotive Electronics: Suitable for ignition systems and LED drivers, leveraging its rugged design.

Conclusion of MJF31CG

The MJF31CG stands out as a versatile, high-reliability NPN transistor for demanding applications. Its combination of high voltage, current capability, and low saturation loss makes it superior to generic BJTs in efficiency-critical designs. The TO-220FP package ensures durability, while compliance with environmental standards broadens its adoption. Whether for industrial power systems, automotive controls, or consumer electronics, the MJF31CG delivers consistent performance and longevity.