Description

Transistor B825 PNP 7A 60V

The Transistor B825 is a durable and high-performance PNP transistor engineered for medium-to-high power applications that demand strong current handling, fast switching, and thermal stability. With its 7A collector current and 60V collector-emitter voltage, the Transistor B825 is ideal for use in audio power amplifiers, voltage regulators, and general-purpose switching circuits. Its high efficiency and robust construction make it suitable for industrial, commercial, and educational electronics applications alike.


Key Features

  • Type: PNP Silicon Power Transistor

  • Collector Current (Ic): 7A continuous

  • Collector-Emitter Voltage (Vce): 60V

  • Collector-Base Voltage (Vcb): 70V

  • Emitter-Base Voltage (Veb): 5V

  • DC Current Gain (hFE): 40 – 160 (typical, depending on current and voltage)

  • Transition Frequency (fT): 4 MHz typical

  • Package Type: TO-3 or TO-218 for superior heat dissipation


Advantages

  • High collector current capacity up to 7A, suitable for medium and high-power circuits.

  • Excellent thermal stability ensures reliable operation under varying temperature conditions.

  • Low collector-emitter saturation voltage, improving switching efficiency and reducing power loss.

  • Designed for audio power amplification, offering high linearity and low distortion output.

  • Compatible as a complementary pair with NPN transistors like BD201 or BD241 for push-pull amplifier designs.


Applications

  • Audio Power Amplifiers: Provides clean, distortion-free sound output with high current capability.

  • Switching Power Supplies: Works effectively in medium-voltage power control applications.

  • Motor Driver Circuits: Suitable for driving DC motors and relay systems requiring moderate current.

  • Inverter and UPS Circuits: Ensures stable performance under continuous high-load conditions.

  • Voltage Regulation Systems: Delivers precise voltage control in regulated power circuits.


Electrical Characteristics (Typical Values at 25°C)

Parameter Symbol Test Condition Value
Collector-Emitter Voltage Vceo Ic = 0 60V
Collector Current Ic Continuous 7A
DC Current Gain hFE Vce = 4V, Ic = 4A 40–160
Transition Frequency fT Vce = 10V, Ic = 1A 4 MHz
Collector Dissipation Pc Tc = 25°C 60W
Junction Temperature Tj 150°C max

Datasheet Summary

  • Model: B825

  • Polarity: PNP

  • Collector-Emitter Voltage (Vce): 60V

  • Collector Current (Ic): 7A

  • Power Dissipation: 60W

  • Transition Frequency: 4 MHz

  • Package Type: TO-3 or TO-218

  • Complementary Transistor: BD201 (NPN)

  • Operating Temperature: -55°C to +150°C


Conclusion

The Transistor B825 is a highly dependable PNP transistor built for demanding power control and amplification needs. Its combination of high current output, moderate voltage capacity, and excellent gain characteristics makes it perfect for professional-grade audio amplifiers, motor controllers, and regulated power supplies. Offering consistent performance, low distortion, and long-term stability, the Transistor B825 PNP 7A 60V is an essential component for engineers, repair specialists, and electronics enthusiasts seeking quality and reliability in their designs.

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