MJ15003G

The MJ15003G is a high-performance NPN power transistor manufactured by ON Semiconductor, designed for use in a variety of applications, including audio amplifiers, power supplies, and motor control circuits. This transistor is part of the MJ150xx series, which is known for its robustness and reliability in demanding environments.

Key Features:

1. Type: NPN Power Transistor

2. Package: The MJ15003G is typically housed in a TO-3 metal can package, which provides excellent thermal performance and allows for efficient heat dissipation. This package design is favored in high-power applications due to its durability and ability to handle high currents.

3. Voltage Rating: The transistor has a maximum collector-emitter voltage (Vce) rating of 140V, making it suitable for high-voltage applications.

4. Current Rating: It can handle a continuous collector current (Ic) of up to 15A, which allows it to drive significant loads without overheating.

5. Power Dissipation: The MJ15003G has a maximum power dissipation rating of 250W, which is critical for applications that require high power handling capabilities.

6. Gain Characteristics: The transistor features a high DC current gain (hFE) range, typically between 20 to 70 at a collector current of 4A, which ensures efficient amplification of signals.

7. Switching Speed: While primarily designed for linear applications, the MJ15003G can also be used in switching applications, although it is not as fast as some modern MOSFETs.

8. Thermal Stability: The device is designed with thermal stability in mind, featuring a low thermal resistance junction-to-case (RθJC) rating, which helps maintain performance under varying thermal conditions.

9. Applications: Common applications include audio power amplifiers, power supply circuits, and various industrial applications where high current and voltage handling is required.

10. Complementary Pair: The MJ15003G is often used in conjunction with its complementary PNP counterpart, the MJ15004G, allowing for push-pull amplifier configurations.

Electrical Characteristics:

• Collector-Emitter Breakdown Voltage (V(BR)CEO): 140V
• Emitter-Base Breakdown Voltage (V(BR)EBO): 5V
• Collector Current (Ic): 15A
• Power Dissipation (Pd): 250W
• DC Current Gain (hFE): 20 to 70 (at Ic = 4A)

Conclusion:

The MJ15003G from ON Semiconductor is a versatile and reliable power transistor that excels in high-power applications. Its robust construction, high voltage and current ratings, and excellent thermal performance make it a popular choice among engineers and designers in the electronics industry. Whether used in audio amplification or industrial control systems, the MJ15003G provides the performance and durability needed for demanding applications.