This Zener Diode is packaged in DO-41, which has a power dissipation of 3W.
6/17/2021 11:53:34 AM
This BJT is packaged in TO-3 package.
This Triac is packaged in TO-92 package, which has a maximum on-state current RMS of 0.6A.
This Silicon Controlled Rectifier is packaged in TO-39 package, which has an average on-state current of 0.95 A.