BD710 Pinout, Equivalent, Applications, Datasheet

The BD710 is a silicon PNP power transistor designed for high-current and medium-voltage switching and amplification. With a collector-emitter voltage of 80 V and collector current of 12 A, it delivers excellent performance in power amplifiers, inverters, and DC motor drivers. Packaged in a TO-220 case, it provides superior thermal stability and serves as the complementary pair of the BD709 NPN transistor with the same BD710 pinout.

bd710 datasheet pinout — BD710 Transistor Datasheet and Specs

Introduction to BD710 PNP Transistor

The BD710 transistor pinout and electrical characteristics make it a robust and efficient device for use in various power control and audio amplifier circuits. This PNP silicon transistor is built to handle substantial load currents while maintaining stable operation under medium voltages.

With its high current gain, low saturation voltage, and wide thermal tolerance, the BD710 offers dependable performance in audio power stages, switching regulators, and motor control systems. It belongs to the BD700 transistor series, featuring matched complementary NPN and PNP devices (BD707–BD710).

This transistor is particularly suited for applications where symmetrical signal operation is needed — such as push-pull amplifier configurations — where the BD710 works alongside its NPN counterpart, BD709.

BD710 PNP Transistor

bd710 transistor pin configuration diagram pinout — BD710 Transistor Front View

Pinout of BD710

bd710 transistor pin configuration pinout diagram — BD710 Transistor Pin Configuration Pinout Diagram

Understanding the BD710 Pinout Configuration

The BD710 transistor pinout follows the standard TO-220 structure, ensuring compatibility and ease of mounting in most circuit designs.

Pin Configuration of BD710 Pinout

Pin#	Pin Name	Pin Description
1	Base	Controls transistor conduction
2	Collector	Connects to load current input
3	Emitter	Output current path terminal

BD710 Pin Configuration

Pin Orientation:
When viewing the transistor’s flat front face with leads pointing downward, the pin sequence is Base → Collector → Emitter from left to right.

Key Features of BD710 Transistor

PNP silicon power transistor
High DC current gain (hFE)
Low collector-emitter saturation voltage
TO-220 package for excellent heat dissipation
Complementary to BD709 NPN transistor
Ideal for amplifier and power switching circuits

BD710 Transistor Datasheet and Specifications

Collector-Emitter Voltage (VCEO): 80 V
Collector-Base Voltage (VCBO): 80 V
Emitter-Base Voltage (VEBO): 5 V
Collector Current (IC): 12 A
Power Dissipation (PC): 75 W (at Tc = 25 °C)
DC Current Gain (hFE): 40 (min at IC = 0.5 A)
Collector-Emitter Saturation Voltage (VCEsat): 1.0 V (max at IC = 4 A)
Transition Frequency (fT): 3 MHz (typical)
Junction Temperature (Tj): 150 °C (max)
Thermal Resistance (RθJC): 1.67 °C/W

These values highlight the BD710’s reliability for medium-voltage power switching and audio amplifier output stages.

Working Principle of BD710 Transistor

The BD710 functions as a current-controlled device, where a small base current allows a larger current to flow from emitter to collector. In a PNP transistor, conduction occurs when the base is driven negatively relative to the emitter.

In amplifier circuits, the BD710 handles the negative half of the waveform, working in tandem with an NPN transistor such as BD709 to achieve full-cycle amplification. This symmetrical action makes it ideal for push-pull amplifier designs, motor control units, and regulated power supplies.

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Typical Applications of BD710

Audio power amplifier output stages
Power supply and voltage regulator circuits
Inverter and converter systems
DC motor drivers and controllers
Relay and solenoid drivers
Switching regulators and control modules
Industrial automation and signal amplification

NPN Complementary Transistor

The BD709 is the NPN complementary transistor to the BD710.
Together, they form an ideal push-pull pair, providing balanced signal operation and improved efficiency in high-power amplifier circuits.

When used in combination, BD710 manages the negative signal swing, while BD709 handles the positive side, ensuring consistent and distortion-free output.

Equivalent Transistors and Alternatives

When selecting replacements, ensure voltage, current, and gain parameters are within similar ranges. Always verify pinout compatibility before substitution.

Comparison BD710 vs BD709 Complementary Transistors

The BD710 (PNP) and BD709 (NPN) are complementary devices designed to work together in balanced circuits.

BD709 conducts current from collector to emitter (NPN action).
BD710 conducts current from emitter to collector (PNP action).

Both share identical ratings — 80 V, 12 A, and 75 W — making them a perfect pair for push-pull audio amplifiers, inverters, and DC motor drivers.

This complementarity results in excellent linearity, reduced crossover distortion, and efficient power output.

Frequently Asked Questions (FAQ)

What is the BD710 transistor used for?

It’s used in amplifiers, switching regulators, motor drivers, and power supply circuits requiring up to 12 A and 80 V handling.

What type of transistor is BD710?

The BD710 is a PNP silicon power transistor.

What is the BD710 pin configuration?

Pin 1 = Base, Pin 2 = Collector, Pin 3 = Emitter.

What is the complementary transistor for BD710?

The BD709 NPN transistor.

Can I use BD708 instead of BD710?

Yes, BD708 can be used as an alternative in compatible circuits, as it has similar ratings.

Conclusion

The BD710 PNP transistor is a reliable, high-performance device designed for medium-voltage and high-current applications. Its strong gain, 80 V / 12 A power capability, and TO-220 package make it an excellent choice for power amplifiers, DC motor controllers, and voltage regulation systems.

When paired with its complementary BD709 NPN transistor, it delivers efficient and distortion-free amplification, making it ideal for push-pull circuits and audio output stages.
The BD710 transistor pinout structure and specifications ensure easy integration and long-term dependability in both industrial and electronic projects.

Datasheet & Pinout of BD710 NPN Transistor

Click the following Button to download the datasheet of BD710 Transistor :

Download Datasheet

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