8.55 V standoff, DO-201 axial — what the ratings mean for the BOM
The 1.5KE10-B: The 15.23 V clamping voltage at 104.8 A limits the voltage spike across the protected load during a high-energy surge — the 1500 W peak pulse rating tells you the device can absorb that energy without failing short. Housed in a DO-201AA (DO-27) axial-lead through-hole package, it handles the thermal dissipation of a 1500 W pulse without the junction exceeding the -55°C to 175°C operating range.
Sourcing an obsolete TVS — what to expect
Because Littelfuse has discontinued the 1.5KE10-B, new-stock sourcing runs through independent surplus and broker channels — quantities are lot-specific, and availability is confirmed only at RFQ time. No pin-compatible direct replacement is listed; a BOM review should verify the standoff voltage and clamping requirements before substituting any alternative TVS diode.