1500 W peak pulse, 7.78 V standoff — Zener TVS in DO-201
The 1.5KE9.1A-B: The 1500 W rating means this diode can absorb a single transient of that energy without failing — useful for clamping surges on 5 V or 12 V rails where the steady-state line voltage sits below the standoff threshold. The 113.4 A peak current figure is the current the diode conducts at the clamping voltage; the actual surge current the circuit sees is limited by the source impedance.
Through-hole axial package and temperature range
Housed in a DO-201AA / DO-27 axial leaded package (supplier device package DO-201), the 1.5KE9.1A-B mounts through hole and is supplied in bulk.
Active production — sourcing posture
For BOM placement, the 1.5KE9.1A-B is a standard catalog item.