The transistor is a 3 terminal & 2 junction semiconductor device which is used for switching or amplifying purposes.

Features of BC639 NPN Audio General Purpose Transistor:

• Collector-Emitter Volt (Vceo): 80V.
• Collector Current (Ic): 0.5A.
• hfe: 40 @ 160mA.
• Power Dissipation (Ptot): 625mW.
• Current-Gain-Bandwidth (ftotal): 200MHz.
• Type: NPN.

Applications of BC639 NPN Audio General Purpose Transistor:

• It is used in switching device.
• It is used in amplifying device.
• It is used in DIY kits.
• It is used in Electronic projects.