Radio Shack 276-1020 Silicon Controlled Rectifier specifications of the rear of the component package.

Here is a copy of the original data sheet that came with the Radio Shack 276-1020 silicon controlled rectifier and the specifications from the back of the product package. This SCR has been discontinued for many years but if you find a circuit schematic that uses one or a 276-1020 that needs to be replaced you can use the information on this page as a reference to choose a substitute part.

The 276-1020 cross references in the NTE database to the NTE5465 and the NTE part was available from several major electronics parts suppliers when I checked in April of 2013.

SCR 276-1020 specifications data sheet.
SCR 276-1020 data sheet with circuit ideas.