Isolation barrier and signal transfer
The CNY1713SD: Switching speed is moderate: typical rise time is 1µs and fall time 2µs, with turn-on at 2µs and turn-off at 3µs. This suits applications like PLC digital input isolation, relay drivers, or AC mains zero-crossing detection where sub-microsecond edges are not required.
Output ratings and temperature range
The phototransistor can handle up to 70V collector-emitter voltage and 50mA continuous output current, with a maximum Vce saturation of 300mV at rated drive — low enough to keep power dissipation in the package under 150mW in typical 5V or 12V circuits. Operating temperature spans -55°C to 100°C, covering industrial control cabinets and outdoor telecom enclosures. The 6-SMD Gull Wing package is suitable for reflow soldering; the Tape & Reel format supports automated pick-and-place assembly.
Lifecycle reality: obsolete, sourced to order
onsemi has marked the CNY1713SD as Obsolete. Sourcing is through independent and surplus distribution channels — quantities are lot-specific and confirmed at RFQ. For a BOM line that already uses this part, the 5300Vrms isolation and 40-80% CTR band are the critical fit parameters. A replacement candidate would need to match the 6-SMD footprint and the same CTR range to avoid re-spinning the board.