BC550 (NPN epitaxial silicon transistor)

PNP Complementary BC560

Replacement and Equivalent:

BC546, 2N2222, 2N3904, BC547, C945, PN100, BC337, 2SC1815, 2SC3198 (Pin configuration of the replacement transistor shown here may be different from the BC550, therefore it is recommended to check pinout of the transistor you are using as a substitute to BC550.)

BC550 Transistor Explained / Description:

BC550 is another general purpose BJT transistor of BC547 series. The transistors in this series are widely used for general purpose applications in commercial appliances and also in educational and hobby electronic projects. BC550 can be used for both switching and amplification purposes in electronic circuits. When used as a switch it can handle load upto 100mA. The maximum collector dissipation is 500mW and the max DC current gain value is 800 therefore it can also be used as a signal amplifier or preamplifier. It is manufactured in different hFE values which can be determined by the last alphabet used after the transistor number if the last alphabet is “A” the hFE value will be 110 to 220, if “B” the hFE value will be 200 to 450 and if “C” then the hFE value will be 420 to 800.