Tag: BC Series Transistors

Introduction The BC372 is a silicon NPN bipolar junction transistor (BJT) designed for low to medium power switching and signal amplification applications. It is widely used in audio amplifiers, driver circuits, and general-purpose low-frequency amplifiers due to its excellent linear gain characteristics and stable operation. The transistor delivers high performance in both analog and digital […]

Introduction The BC369 is a PNP silicon bipolar junction transistor (BJT) designed primarily for low-noise, high-gain small-signal amplification. It is widely used in audio frequency amplifiers, low-level preamplifiers, and signal processing circuits where minimal distortion and clean signal performance are essential. The transistor provides stable operation over a wide temperature range and ensures excellent linearity, […]

Introduction The BC368 is a low-noise NPN silicon bipolar junction transistor (BJT) specifically designed for low-level signal amplification and audio frequency applications. It is widely used in high-fidelity audio preamplifiers, low-frequency amplifiers, and signal conditioning circuits where signal integrity and noise performance are critical. With its high gain and stable electrical characteristics, the BC368 provides […]

Introduction The BC308 is a PNP bipolar junction transistor (BJT) primarily designed for low-frequency audio amplification and general-purpose applications. It is well known for its low noise characteristics and stable DC gain, making it an ideal choice for audio preamplifiers, tone control circuits, and small signal processing. With a maximum collector current of –100mA and […]

Introduction The BC307 is a PNP bipolar junction transistor (BJT) widely used in low-noise audio preamplifier and general-purpose amplification circuits. It is designed for low-frequency applications and provides excellent linearity, low distortion, and high gain, making it suitable for use in audio stages, tone controls, and signal amplification systems. With a maximum collector current of […]

Introduction The BC559 is a general-purpose PNP bipolar junction transistor (BJT) designed primarily for low-noise audio amplification and signal processing applications. It is widely used in audio preamplifiers, driver circuits, and low-level signal stages, where minimal distortion and clean amplification are essential. The transistor operates with a collector-emitter voltage (VCEO) of –30V and a maximum […]

Introduction The BC639 is a high-voltage NPN bipolar junction transistor (BJT) designed for audio frequency amplification, signal processing, and medium-power switching applications. It is part of the BC63x transistor series, which includes BC635 and BC637, known for their stable performance and reliability in linear amplification circuits. With a collector-emitter voltage (VCEO) of up to 80V […]

Introduction The BC637 is a general-purpose NPN bipolar junction transistor (BJT), widely used in medium-power amplification and switching applications. It belongs to the BC63x transistor family, which includes BC635 and BC639, designed primarily for audio frequency amplifier stages and signal driver circuits. With a collector current capacity of up to 1A and a collector-emitter voltage […]

Introduction The BC635 is a general-purpose NPN bipolar junction transistor (BJT) commonly used in low to medium-power amplification and switching applications. It belongs to the BC63x family of transistors, designed for audio frequency and driver stages. The BC635 offers a moderate collector current handling capacity and high voltage tolerance, making it suitable for amplifiers, signal […]