Lifecycle reality — obsolete, no direct successor on record
The 1.5KE68CAHE3/51: For a BOM line that requires this exact AEC-Q101 grade and 1500W pulse rating, sourcing runs through independent surplus and broker channels. Availability is lot-specific and confirmed at RFQ time; no pin-compatible drop-in replacement from Vishay is documented.
Package and board-fit — axial DO-201AA considerations
Housed in a DO-201AA (DO-27) axial leaded package, the 1.5KE68CAHE3/51 mounts through-hole — the lead bend radius and hole diameter on the PCB must match the axial body length to avoid stress on the glass passivation junction. The operating temperature range spans -55°C to 175°C, covering the full automotive under-hood and engine-bay thermal profile without derating the 1500W pulse capability.