Obsolete — sourcing through independent channels
The 1.5SMC10 is classified as Obsolete by Littelfuse Inc. This part is available through independent distribution channels.
The 8.55 V reverse standoff voltage means the device does not conduct at normal rail voltage up to that level; above it, breakdown begins at 9 V minimum.
Housed in a DO-214AB (SMC) surface-mount package, also designated as SMCJ. The standard SMC footprint is shared across the 1.5SMC series, so a single PCB land pattern serves the full power range. Operating temperature range is -55°C to +150°C (junction). This covers industrial, automotive under-hood, and military/aerospace environments where the ambient temperature may exceed 125°C.