Category: Bi-polar Transistor (BJT)

Introduction The BD204 is a PNP silicon power transistor designed for medium-power amplification and switching applications, commonly used in audio amplifier output stages, regulator circuits, and complementary push-pull designs. Its high breakdown voltage and robust power handling make it suitable for circuits requiring the negative side of the waveform to be driven. According to the […]

Introduction The BD203 is an NPN silicon power transistor designed for medium-power amplification and switching applications. It’s commonly used in audio amplifier outputs, hi-fi circuits, and power driver stages. The device is built to handle relatively high currents and voltages for its class, making it suitable for kind of circuits where reliable power gain is […]

Introduction The BD202 is a PNP silicon power transistor used in medium-power amplifier and switching applications, especially suited for audio output stages and regulator circuits where negative-side control is needed. It is part of the BD20x/BD20x series, designed to complement NPN transistors in push-pull amplifier configurations. According to the datasheet, BD202 is intended as the […]

Introduction The BD201 is a high-power NPN silicon transistor designed primarily for audio amplifier output stages, power switching, and linear amplifier applications. It is widely recognized for its excellent thermal stability, robust performance, and reliable operation under high-voltage and high-current conditions. With its durable TO-202 or TO-220 package, the BD201 is well-suited for applications that […]

Introduction The BD180 is a PNP silicon power transistor widely used in audio amplifier output stages, power regulation, and switching applications. It belongs to the BD17x family, which includes BD176 and BD178, and is designed for medium to high-power amplification. With its robust structure and high voltage tolerance, the BD180 ensures stable performance in demanding […]

Introduction The BD178 is a PNP silicon power transistor commonly used in audio amplifier circuits, switching regulators, and power control applications. It is part of the BD17x transistor family, known for their excellent linearity, durability, and medium-power handling capability. The BD178 is designed to provide high performance in low-frequency and audio-frequency amplifier stages, where stability […]

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 […]

Introduction The BD179 is a silicon NPN power transistor designed for medium power switching and audio amplifier applications. It delivers a high collector current and wide voltage handling capability, making it ideal for audio output stages, driver circuits, voltage regulators, and signal amplification. With a robust structure and consistent electrical performance, it is widely used […]

Introduction The BD177 is a silicon NPN power transistor specifically designed for medium power linear and switching applications. It is widely used in audio amplifiers, driver circuits, voltage regulators, and control systems where high current and voltage handling capabilities are required. The transistor offers high reliability, excellent linear amplification, and low saturation voltage, making it […]