Surge protection for 15 V rails
The 1.5KE18CA: That is enough margin to protect a 15 V rail from inductive kickback or lightning-induced transients in industrial and general-purpose equipment.
Housed in a DO-201AA (DO-27) axial leaded package, the 1.5KE18CA is a through-hole part suited for wave-solder or hand-solder assembly. The DO-201 body handles the thermal pulse of a 1500 W surge without derating at 25 °C ambient. The wide range means the clamping behaviour stays consistent across the full temperature envelope.