The BC547B is an NPN general-purpose small signal transistor, widely used in switching and amplification applications across industrial, commercial, and consumer electronics. It is part of the long-established BC54x transistor family, originally developed and manufactured by Philips and later continued under BC Components.
The gain group B offers a medium DC current gain, making the BC547B a reliable and versatile choice for signal amplification, driver stages, and general switching tasks. Thanks to its robust electrical characteristics and long production history, this transistor is frequently encountered in industrial control boards, measurement equipment, power supplies, and legacy European electronics.
The devices offered are through-hole TO-92 transistors, well suited for professional repairs, maintenance, and replacement of obsolete components.
