This BJT is packaged in TO-3 package.
6/17/2021 11:53:34 AM
This Triac is packaged in TO-39 package, which has a maximum on-state current RMS of 4A.
This BJT is packaged in TO-66 package.
This Silicon Controlled Rectifier is packaged in TO-48 package, which has an average on-state current of 16 A.