CNY17F-4XG

Overview

The CNY17F-4XG is a single-channel, through-hole optocoupler manufactured by Isocom Components 2004 LTD. It features an infrared LED coupled to an NPN silicon phototransistor in a 6-pin DIP package. Key electrical parameters include a maximum forward voltage of 1.65V and a maximum input current of 60 mA. The device offers a high current transfer ratio ranging from 160% to 320%. It provides robust isolation with a rated voltage of 5.3 kVrms and a peak withstand voltage of 7500 V. Typical switching characteristics include a rise time of 4.6 µs and a fall time of 15 µs.

Feature Summary

• Provides galvanic isolation between input and output circuits using an infrared LED and NPN phototransistor pair.
• Features a non-base lead configuration for simplified circuit integration and reduced component count.
• Delivers high current transfer efficiency suitable for driving logic inputs or relay coils directly.
• Ensures safety compliance with high dielectric strength insulation capabilities.

Applications

• Signal isolation in microcontroller interfacing circuits
• Switching applications for low-power loads such as LEDs or relays
• Noise immunity enhancement in industrial control systems
• Power supply feedback loops for voltage regulation

Procurement Notes

Verify the specific suffix 'XG' against official Isocom documentation to confirm pinout and packaging details. Ensure compatibility with existing PCB footprints for 6-pin DIP configurations. Cross-reference datasheet specifications for thermal management requirements during operation. Confirm regulatory compliance status for intended market regions before finalizing procurement decisions.

Selection Notes

Select this component when high current transfer ratio is required for efficient signal transmission. Consider the 5.3 kVrms isolation rating for applications involving significant potential differences. Evaluate the 60 mA maximum input current limit against drive circuit capabilities. Compare switching speeds if high-frequency response is critical for the specific application design.

Part Context

This part belongs to the CNY17 series of transistor-output optocouplers. It shares functional similarities with other variants like CNY17-1 and CNY17-4 but differs in current transfer ratio specifications. The 'F' designation often indicates specific insulation or packaging enhancements compared to standard versions. It serves as a general-purpose isolator for digital and analog signal transmission.

Replacement Considerations

CNY17F-4XG is noted as a close substitute for CNY17F-4 due to matching current transfer ratios (160%-320%) and identical package pitch. Verify pin compatibility and electrical limits before substituting with other CNY17 family members.