Clamping performance and peak pulse capability
The 1N6276AHE3_A/D: The 15.2 V minimum breakdown voltage marks where the Zener conduction begins; up to the 13.6 V typical reverse standoff the diode holds off the rail with negligible leakage.
Automotive temperature grade and TransZorb construction
The -55°C to +175°C junction temperature range gives wide margin against the thermal runaway risk that plagues crowded automotive boards; the TransZorb construction provides bidirectional peak transient protection within that envelope.
Package and sourcing posture
The DO-201AA axial package (1.5KE supplier device package designation) is the standard TVS footprint for through-hole automotive boards — the lead pitch and mounting hole pattern are consistent across the Vishay 1.5KE series, which matters when swapping in a second source if one ever becomes available.