Obsolete 1500W bidirectional TVS for automotive bus clamping
The 1.5KE82CAHE3/51: It clamps transients at 113 V maximum when the surge current hits 13.3 A, and the reverse standoff voltage is 70.1 V — this is the DC bus voltage it protects without conducting. The DO-201AA axial-lead package (also known as DO-27) is through-hole mounted, suited for point-of-entry protection on power inputs where board space is not the constraint.
Sourcing an obsolete AEC-Q101 TVS
The AEC-Q101 qualification means the device has passed automotive-grade reliability testing (temperature cycling, ESD, humidity, and high-temperature reverse bias). If the application is a non-automotive design, a commercial-grade TransZorb with the same electrical ratings may be available at lower cost — but the AEC-Q101 data package is the differentiator for designs that require PPAP traceability.