TNY278PN IC

BC547 is a general purpose BJT NPN transistor mostly used in electronics hobbyists and educational electronics projects. Besides these uses it can also be used in commercial circuits. It comes in TO-92 packaging and the maximum output current this transistor can handle is 100mA. The transistor is having very good DC current gain and low noise capabilities due to which it is ideal to use in signal amplification stages. The typical saturation voltage is only 90 millivolts which is also a good sign to use it as a switch.

BC327 is a general purpose PNP BJP transistor that can be used for switching and amplification purposes in electronic circuits. The transistor features 800mA collector current hence it can be used to drive variety of loads in an electronic application. The max collector-emitter voltage is -45V therefore it can easily handle load voltage under 45V. Apart from that transistor also features 625mW collector dissipation and DC current gain of maximum 630 therefore it can also be used as an audio amplifier or for any type of signal amplification.