BD176 PNP Transistor Pinout Datasheet

Introduction

The BD176 is a PNP silicon power transistor designed primarily for audio power amplifiers, linear drivers, and medium-power switching circuits. It belongs to the well-known BD175–BD180 transistor series, which offers matched NPN and PNP complementary pairs for push-pull configurations. The BD176 delivers excellent linearity and stable performance under varying thermal conditions, making it ideal for both industrial and consumer-grade amplifier circuits.

This transistor is housed in a TO-225 (or TO-126) package, providing efficient heat dissipation and ease of mounting on heat sinks. Its typical collector current of 2A and collector-emitter voltage of 60V allow it to handle moderate loads efficiently. The BD176 transistor is frequently used in audio driver stages, output amplification, and signal regulation circuits, where low distortion and high reliability are crucial.

BD176 PNP Transistor

In power amplifier circuits, the BD176 works as the PNP complement of the BD175 (NPN) transistor. Together, they form a balanced output stage capable of providing symmetrical waveform amplification. Its good gain bandwidth product, thermal stability, and low saturation voltage make it a popular choice among designers for class AB amplifiers and regulated power supply drivers.

Pinout of BD176

Key Features

• Complementary to the BD175 NPN transistor.
• High collector current capacity up to 2 amperes.
• Suitable for medium power amplification and switching applications.
• Reliable performance with good thermal stability.
• Low saturation voltage for efficient conduction.
• Ideal for push-pull audio output stages.
• Durable TO-225 package for easy heat sinking.

Specifications/Characteristics

• Transistor Type: PNP Silicon.
• Collector-Emitter Voltage (Vceo): -45V.
• Collector-Base Voltage (Vcbo): -45V.
• Emitter-Base Voltage (Vebo): -5V.
• Collector Current (Ic): -3A continuous.
• Power Dissipation (Ptot): 12.5W (with heatsink).
• DC Current Gain (hFE): 40 to 160 (depending on Ic).
• Transition Frequency (fT): 3 MHz typical.
• Operating Temperature Range: -55°C to +150°C.
• Package Type: TO-225 / TO-126.

Pin Configuration

More Circuit Layouts

Key Applications of BD176 PNP Transistor

• Audio amplifier driver and output stages.
• Low and medium power switching circuits.
• Linear voltage regulator circuits.
• Power control and feedback circuits.
• Complementary pair design with BD175 for push-pull configurations.
• Signal amplification in consumer audio systems.

NPN Complimentary Transistor

• The NPN complementary transistor of BD176 is the BD175.
  They are designed to work together in class B and class AB audio amplifiers, ensuring symmetrical signal handling across both waveform halves.

Equivalent Transistors of BD176 PNP Transistor

• BD178 (higher voltage PNP version)
• BD180 (high voltage, high gain PNP version)
• BD438
• BD440
• 2N2905
• 2SA940

(Pin configuration of some transistors mentioned here may different from BD176).

Datasheet of BD176 PNP Transistor

Click the following Button below to download the datasheet of BD176 Transistor :

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