Obsolete — sourcing reality for the 1.5SMC250AHE3_A/I
Vishay lists this part as obsolete. That means the manufacturer has stopped production with no last-time-buy window still open — the only available units are from surplus or broker inventory. A functional replacement would need to match the 214 V standoff, 1500 W rating, and DO-214AB footprint, but a board-level requalification is likely. Sourced through independent distribution channels — availability and pricing confirmed at RFQ against specific date-code and quantity requirements.
DO-214AB SMC — package and board integration
Tape and Reel packaging suits automated pick-and-place assembly. The unidirectional channel means the cathode band on the package body must align with the positive rail side on the board — reverse insertion blocks the clamping action.