1500W axial TVS — obsolete but still spec'd in legacy BOMs
The 1.5KE13-B: Its 11.1V reverse standoff voltage and 19.11V clamping point make it a fit for protecting 12V DC rails in industrial control, telecom, and power-supply circuits where the nominal bus sits at 12V and needs clamping at roughly 19V before the downstream silicon sees damage. Packaged in a DO-201AA (DO-27) axial leaded body, it mounts through-hole and handles 83.5A peak pulse current at the clamping voltage.
Obsolete — sourcing through independent channels
Littelfuse lists the 1.5KE13-B as obsolete. No official successor order code is recorded in the lifecycle data. For existing BOM lines that still call out this part number, availability is limited to surplus and broker inventory sourced through independent distribution. Each lot is verified for authenticity and traceability before shipment.