Device identity and key parametrics
The 1.5KE11C: The single bidirectional channel means a single device clamps both polarities, simplifying board layout for AC or bipolar signal lines.
Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE11C mounts through-hole. The DO-201 body is the standard footprint for the 1.5 kW power level in this series, with lead spacing and diameter matching common PCB layouts for through-hole TVS diodes. The wide temperature margin means derating for high-temperature operation is minimal within the rated power envelope.
Littelfuse lists the 1.5KE11C as obsolete. For existing BOM lines that require this exact order code, we source through independent distribution channels.