This Programmable Unijunction Transistor is packaged in TO-18 package, which has a power rating of 250mW. This is a High Reliability (-HR) device with Sn/Pb lead finish, screened per MIL-PRF-19500. Contact for -HR flow.
Programmable Unijunction Transistors are used in timers, high gain phase control circuits and relaxation oscillators.