Npn Transistor Schaltbild. An npn n egative p ositive n egative type and a pnp. Ordering information ordering number pin assignment package packing lead free halogen free 1 2 3 pn2222al ab3 r pn2222ag ab3 r sot 89 b c e tape reel pn2222al.
The center section is called the base. In both types the first crystal is called the emitter. Unisonic technologies co ltd pn2222a npn silicon transistor npn general purpose amplifier features this device is for use as a medium power amplifier and switch requiring collector currents up to 500ma.
Npn transistor is one of the bipolar junction transistor bjt types.
Reverse bias is needed in the collector junction of an npn transistor figure 3. This is known as forward bias. A bias voltage must exist between emitter and base of an npn transistor figure 2. Onsemi alldatasheet datasheet datasheet search site for electronic.