The 2N2646 is a Unijunction Transistor (UJT), commonly used in oscillators, timing circuits, and triggering applications. It has a single PN junction and is mainly used as a switch in electronic circuits.
Features of 2N2646 UJT:
- Low trigger voltage (~0.6V to 1.8V)
- Negative resistance characteristic
- Low power consumption
- Fast switching speed
- Stable operation in oscillators and pulse circuits
- TO-18 metal can package