BC557

•Max Storage & Operating temperature Should be: -65 to +150 Centigrade

Features / Technical Specifications:

•Max Storage & Operating temperature Should be: -65 to +150 Centigrade

NPN Complementary of BC557 is BC547

Alternative transistors for BC557 are 2N3906 , 2N4403 , BC556 , BC327 output pins of some equivalents are different please see pinout details of the equivalent transistor before replacing in the circuit.

BC557 Transistor Explained / Description:

BC557 is a widely used PNP bipolar junction transistor manufactured in small TO-92 package. It is a general purpose PNP transistor that can be used as a switch or amplifier in electronic circuits. Its HFE ratings are 125 to 800 which makes it an ideal transistor to use as a small signal amplifier in electronic circuits for example for audio signal amplification or other, the HFE ratings of BC557 can be determined by the last letter after its number for example BC557A HFE ratings are 110-220, BC557B HFE ratings are 200-450 and BC557C HFE ratings are 420-800. The max collector dissipation is 500 milliwatt which is also an another good point to use it in amplification stages. Moreover it will also perform well when used it as a switch for load under 100mA. The transistor has also good collector to emitter (VCE) value that is -45V, therefore you can easily use it in circuits using 40 to 45 volts DC.

Beside these uses BC557 is also a good general purpose PNP transistor to use in your hobby electronics projects therefore it is a must to have transistor in your electronics LAB.

Where We Can Use it & How to Use:

As mentioned above BC557 is a general purpose…