Clamping and breakdown parametrics
The 1.5KE7.5CAHA0G: The 11.3V clamp is the voltage the downstream circuitry sees during the surge — stay below that for the protected rail's absolute maximum rating. The single bidirectional channel protects both positive and negative transients with one device, saving board space compared to using two unidirectional TVS diodes back-to-back.
Housed in a DO-201AA axial package (also known as DO-27), the 1.5KE7.5CAHA0G is a through-hole device that mounts into a standard 0.100-inch pitch hole pattern. The axial leads allow for either vertical or horizontal mounting on the PCB, which helps with thermal management — the lead frame conducts heat into the copper pour. Supplied in tape-and-box format, it is compatible with automatic insertion equipment for medium-volume assembly. The base product number is 1.5KE7.5, so the suffix HA0G denotes the AEC-Q101 qualified variant with the bidirectional polarity.