TVS Zener in a hermetic MELF – what the ratings buy you
The 25.7V minimum breakdown voltage and 20.6V reverse standoff define the clamping threshold for a 24V nominal rail; the 37.4V maximum clamp voltage at Ipp tells you the peak voltage the downstream circuitry must survive. Housed in a C, SQ-MELF package — a hermetic ceramic body with metallized end caps — this is the package class you see in MIL-spec and high-reliability programs where plastic-packaged TVS diodes risk delamination or moisture ingress.
Thermal and environment – where this diode survives
No power line protection — this part is for signal or low-voltage DC rail clamping, not AC mains.
Sourcing posture – active production, no immediate EOL
— not tape-and-reel, so plan for manual or tray-fed pick-and-place handling.