Tag: BC639 Transistor

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 […]