Which is a general purpose PNP transistor that can be used as a switch or amplifier in electronic circuits. This transistor is widely used PNP bipolar junction transistor manufactured in small TO-92 package. BC557 Transistor Explained / Description: They have essentially similar specifications and can generally be substituted for one another (within the PNP and NPN groups of three each). The BC547-9 series and BC557-9 series are functionally identical to the common BC107-9 series.Īll have a maximum power dissipation of 500mW. Transistor bc 557,is a general purpose PNP transistor and Is the most used PNP bipolar junction used as an amplifier or switch in circuits. Relays, Motors, Motor drivers, Pumps & Valves. Connectors/Header pins/Stackable pins/Jumper wires.
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