BC557 is a PNP transistor hence the collector and emitter will be closed (Forward biased) when the base pin is held at ground and will be opened (Reverse biased) when a signal is provided to base pin.FEATURES:
Low current (max. 100 mA)
Low voltage (max. 65 V).
APPLICATIONS:
General pur..
The terms NPN and PNP refer to the two main types of bipolar junction transistors (BJTs). The TO-92 package is a common type of through-hole package used for small signal BJTs. When you mention "NPN PNP transistor TO-92," it indicates that you are looking for NPN and PNP transistors in the TO-92 pac..
The terms NPN and PNP refer to the two main types of bipolar junction transistors (BJTs). The TO-92 package is a common type of through-hole package used for small signal BJTs. When you mention "NPN PNP transistor TO-92," it indicates that you are looking for NPN and PNP transistors in the TO-92 pac..