Electromagnetic Buzzer – 5V – PCB Mount

2N2222 is NPN BJT?normally used in low power amplifiers and also for switching application. 2n2222 is used as a?small signal transistor?and used as a general purpose transistor and is very popular. ?This is in TO-92 package form.

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.