Description

Transistor BU2508DF NPN 8A 700V


Description:Transistor BU2508DF NPN 8A 700V

BU2508DF Transistor is a high-voltage NPN bipolar junction power transistor designed for demanding applications that require high current handling, fast switching, and superior reliability. The BU2508DF Transistor is widely used in power supplies, horizontal deflection circuits of CRT displays, industrial switching systems, and high-voltage inverters.

With a maximum collector current of 8A and a collector-emitter voltage rating of 700V, the BU2508DF Transistor offers excellent switching performance and high efficiency in power control systems. Engineered using advanced high-voltage planar technology, it features low saturation voltage, high gain, and minimal energy loss, ensuring optimal performance in continuous or pulsed operations.

The BU2508DF Transistor is encapsulated in a robust TO-3P or ISOWATT218 package, designed to provide excellent thermal conductivity and mechanical strength, allowing for stable operation under high electrical and thermal stress.


Key Features:

  • High-Voltage NPN Power Transistor: Supports up to 700V collector-emitter voltage.

  • High Collector Current: Handles up to 8A continuous current.

  • Low Saturation Voltage (Vce(sat)): Reduces power loss and heat generation.

  • High DC Current Gain (hFE): Provides reliable amplification and control.

  • Fast Switching Performance: Suitable for high-frequency and power circuits.

  • Excellent Thermal Stability: Designed for long-term operation under heavy loads.

  • Robust Power Package: Ensures efficient heat dissipation and extended lifespan.


Applications:

  • Horizontal deflection circuits in CRT monitors and TVs

  • High-voltage switching regulators

  • Industrial power supply circuits

  • Inverter and converter systems

  • Motor control and automation equipment

  • Lighting and display drivers

  • General-purpose high-voltage switching


Electrical Characteristics (Typical Values):

Parameter Symbol Value Unit
Collector-Emitter Voltage Vceo 700 V
Collector Current Ic 8 A
Power Dissipation Ptot 125 W
DC Current Gain hFE 15–75
Saturation Voltage Vce(sat) 1.5 V
Transition Frequency fT 8 MHz
Operating Temperature Tj -65 to +150 °C

Advantages:

  • Handles high voltage and current with exceptional reliability.

  • Provides low power loss and high efficiency in demanding circuits.

  • Fast response time ideal for switching and amplifier applications.

  • Thermally durable with excellent mechanical integrity.

  • Ensures stable operation under heavy electrical and environmental stress.


Summary:

The BU2508DF Transistor is a powerful and efficient NPN high-voltage transistor engineered for industrial and consumer electronics requiring high-speed switching and reliable performance. With its 8A current capability and 700V voltage tolerance, it provides excellent energy efficiency, low heat dissipation, and robust thermal management. Ideal for CRT horizontal deflection, inverters, and power control systems, the BU2508DF Transistor guarantees long-term durability and consistent performance even under extreme conditions. Whether used in industrial, automotive, or energy systems, this transistor delivers unmatched reliability and efficiency for high-power electronic designs.

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