Bidirectional TVS for 171V rails — 1500W pulse rating
The 1.5KE200CA-E3/51: The 274V maximum clamp voltage at 5.5A peak pulse current means the protected circuit sees no more than 274V across the TVS during a surge — a critical number for selecting downstream components with adequate voltage rating.
Package and board integration
Housed in a DO-201AA / DO-27 axial leaded package, this through-hole part mounts directly into a PCB or terminal block. The 1.5KE package code is the same for the entire series; the axial leads fit standard 0.100-inch pitch holes.
Last Buy — sourcing reality for the BOM line
Vishay has marked the 1.5KE200CA-/51 as Last Buy. This means the manufacturer is no longer accepting new orders beyond a defined window; remaining stock is finite and moving through independent distribution. For a production line that depends on this specific TVS, the procurement decision is time-sensitive.