Isolation barrier and working voltage fit
The transistor output is rated for 70V maximum collector-emitter voltage and 50mA continuous output current, which covers 24V logic-level interfaces and low-side switching loads common in factory automation.
CTR spread and drive margin
Current transfer ratio spans 50% minimum to 600% maximum at If=5mA — a 12:1 spread that forces the designer to verify the output side can pull the load current at the lowest CTR across temperature.
Rated from –55°C to 110°C, the FOD817300W exceeds the commercial 0–70°C and industrial –40–85°C ranges, making it a candidate for outdoor telecom cabinets, engine-bay electronics, and cold-chain logistics controllers where the ambient swing is wide. The 4-DIP through-hole package with 10.16mm lead spacing provides inherent creepage distance that supports the 5000Vrms isolation claim without external conformal coating.
ROHS3 compliant per; no special MSL handling required for the through-hole package.