What this TVS protects and how it clamps
The 1.5KE24CAHE3/51 is a 1500W bidirectional TransZorb® TVS diode in the DO-201AA / DO-27 axial-lead package, qualified to AEC-Q101 for automotive use. The axial DO-27 body is through-hole mount — a rework-friendly package that survives hot-air removal without pad damage, and the cathode band (for unidirectional variants) is clearly marked; on this bidirectional part the band is absent, so orientation is non-polarised.
Sourcing an obsolete automotive-grade TVS
For a BOM that already passed qualification with this exact order code, the obsolete status forces a last-time-buy or a re-spin to a current Vishay TVS in the same package footprint.
Where to get pricing and availability
Pricing and current availability for the 1.5KE24CAHE3/51 are confirmed at quote time against an RFQ. As an obsolete part, stock is lot-specific and held by independent distributors — no blanket stock claim applies.