5300Vrms isolation and CTR range
The onsemi CNY17F13S is a single-channel phototransistor optocoupler in a 6-SMD Gull Wing package. Its 5300Vrms isolation voltage provides a reinforced insulation barrier for separating high-voltage and low-voltage domains in power supplies, motor drives, and industrial interface circuits. Current transfer ratio spans 40% minimum to 80% maximum at a forward current of 10mA — this band defines the LED drive current needed to guarantee a logic-level output at the transistor collector. The 70V output rating and 50mA continuous output current handle typical PLC digital input and relay drive loads.
Switching speed and thermal envelope
Turn-on time is 2µs typical, turn-off 3µs typical, with rise and fall times of 1µs and 2µs respectively. These figures suit 10-100 kHz switching applications such as gate-drive feedback or isolated serial communication where the propagation delay fits within the timing budget. Operating temperature range of -55°C to 100°C covers industrial enclosures and equipment near motors or power stages. The 300mV maximum Vce saturation at the output keeps power dissipation low when the transistor is switched on.
onsemi has marked the CNY17F13S as Obsolete. No official successor or pin-compatible replacement is listed on the manufacturer's records. New designs should migrate to an active phototransistor optocoupler with equivalent 5300Vrms isolation and CTR range in the same 6-SMD footprint. No stock-holding claim is made — each order is sourced per the customer's quantity requirement.