Programmable Unijunction

Programmable unijunction transistors (PUTs) are a relative of Silicon Controlled Rectifier (SCR) devices, having a characteristic behavior somewhat like a unidirectional DIAC with a user-configurable threshold voltage. While useful for creating low frequency oscillator and timing functions, SCR triggering applications, and others, alternative techniques for addressing such needs have gained greater favor.

Part Number Manufacturer Description Quantity Price Option
2N4871 Central Semiconductor Corp THROUGH-HOLE TRANSISTOR-SMALL SI 0 $0.00
2N5431 Central Semiconductor Corp THROUGH-HOLE UJT 0 $0.00
2N4949 Central Semiconductor Corp THROUGH-HOLE UJT 0 $0.00
2N4948 Central Semiconductor Corp THROUGH-HOLE UJT 0 $0.00
2N4853 Central Semiconductor Corp THROUGH-HOLE UJT 0 $0.00
2N4852 Central Semiconductor Corp THROUGH-HOLE UJT 0 $0.00
2N4851 Central Semiconductor Corp THROUGH-HOLE UJT 0 $0.00
2N2647 Central Semiconductor Corp THROUGH-HOLE UJT 0 $0.00
CMPP6028R TR Central Semiconductor Corp PROGRAMMABLE UJT SOT-23 0 $0.00
CMPP6027R TR Central Semiconductor Corp PROGRAMMABLE UJT SOT-23 0 $0.00