Programmable Unijunction Transistor
Silicon Programmable Unijunction Transistors

. . . designed to enable the engineer to “program” unijunction characteristics such as RBB, η, IV, and IP by merely selecting two resistor values. Application includes thyristor-trigger, oscillator, pulse and timing circuits. These devices may also be used in special thyristor applications due to the availability of an anode gate. Supplied in an inexpensive TO-92 plastic package for high-volume requirements, this package is readily adaptable for use in automatic insertion equipment.

• Programmable — RBB, η, IV and IP.
• Low On-State Voltage — 1.5 Volts Maximum @ IF = 50 mA
• Low Gate to Anode Leakage Current — 10 nA Maximum
• High Peak Output Voltage — 11 Volts Typical
• Low Offset Voltage — 0.35 Volt Typical (RG = 10 k ohms)