The onsemi CNY17F3300 is a single-channel optoisolator with a DC input and transistor output, housed in a 6-DIP (0.300", 7.62mm) through-hole package supplied in tube form. Its 5300Vrms isolation rating suits it for galvanic separation in industrial control and power supply feedback loops where high-voltage isolation is required. The current transfer ratio (CTR) is specified at 100% minimum and 200% maximum at a forward current of 10mA, ensuring consistent signal transfer across the isolation barrier within that range.
Switching speed and output drive
Typical rise and fall times are 1µs and 2µs respectively, with turn-on and turn-off times of 2µs and 3µs — adequate for low-frequency digital or analog signal isolation up to a few hundred kilohertz. The output transistor can handle up to 70V collector-emitter voltage and 50mA continuous current, with a saturation voltage of 300mV maximum at rated drive. Forward voltage is typically 1.35V, and the maximum DC forward current is 100mA, giving a clear drive budget for the LED side.
Temperature range and operating environment
Rated for -55°C to 100°C operating temperature, this optoisolator covers industrial and automotive-grade ambient conditions without derating.
The CNY17F3300 is marked as Obsolete by onsemi. For new designs, consider a current-production optoisolator with similar 6-DIP footprint and 5300Vrms isolation.