CNY17F2SM

Overview

The CNY17F2SM is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output without a base connection, housed in a surface-mount PDIP-6 Gull Wing package. The device provides an isolation voltage of 4170 Vrms and supports a maximum collector-emitter voltage of 70 V. Key electrical parameters include a forward current of 60 mA, a forward voltage of 1.65 V, and a collector current rating of 50 mA. The current transfer ratio ranges from 63% to 125%, with typical rise and fall times of 6 µs and 24 µs, respectively.

Feature Summary

• Provides galvanic isolation between input and output circuits using an internal LED and phototransistor.
• Features an NPN phototransistor output configured without a base terminal for simplified circuit integration.
• Designed for surface-mount assembly within a compact six-pin gull-wing package.

Applications

• Signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic gates
• Power supply feedback loops

Procurement Notes

Verify the manufacturer part number against official onsemi documentation to ensure authenticity. Confirm that the specific suffix matches the required packaging configuration. Check RoHS compliance status through the manufacturer's material declaration. Validate the component date code and lot traceability upon receipt. Ensure storage conditions adhere to moisture sensitivity level requirements before soldering.

Selection Notes

Select this component when a surface-mount solution is required for single-channel signal isolation. Consider the 4170 Vrms isolation rating for safety-critical applications. Evaluate the current transfer ratio range to ensure adequate signal transmission at the intended operating current. Verify that the 60 mA forward current limit aligns with the driving source capabilities. Assess the thermal performance based on the specified power dissipation and operating temperature range.

Part Context

This component belongs to the CNY17F series of transistor output optocouplers. It shares functional similarities with other variants in the family, such as the CNY17F1SM and CNY17F3SM, differing primarily in current transfer ratio specifications. The series is designed for general-purpose isolation tasks where space constraints necessitate surface-mount technology.

Replacement Considerations

Direct pin-to-pin replacements within the same series include CNY17F1SM and CNY17F3SM, provided their respective current transfer ratios meet the application requirements. Cross-manufacturer equivalents may require verification of pinout compatibility and electrical parameter alignment.