TransZorb® bidirectional TVS — 1500 W peak pulse, 40.2 V standoff
The 1.5KE47CA-E3/54: The 40.2 V standoff means the diode does not conduct appreciably below that rail voltage, so it sits across a 36 V or 40 V supply bus without leakage affecting normal operation — the 44.7 V minimum breakdown gives margin before the avalanche region.
Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE47CA-/54 is a through-hole part — the leads are crimped or soldered into plated through-holes on the PCB, and the body sits above the board for convection cooling. The axial form factor is common in power-supply input stages and industrial control boards where a single TVS clamps a bulk rail; the lead spacing matches standard 0.4-inch hole patterns.
The tape-and-reel packaging (/54 suffix) suits automated insertion for volume builds.
