CNY17F2SVM

Overview

The CNY17F2SVM is a single-channel optoisolator featuring an NPN phototransistor output, manufactured by onsemi (formerly Fairchild Semiconductor). It provides high isolation voltage of 7500 Vrms and operates within a temperature range of -40°C to +100°C. The device utilizes a 6-SMD surface-mount package with鸥翼 (gull-wing) leads. Key electrical specifications include a maximum collector-emitter voltage of 70V, a peak forward current of 60mA, and a typical current transfer ratio of 125% at 10mA input. Switching characteristics include a rise time of 6µs and a fall time of 24µs.

Feature Summary

• Integrates a Gallium Arsenide infrared emitting diode coupled with an NPN phototransistor for signal transmission.
• Provides robust electrical isolation between input and output circuits via a dedicated dielectric barrier.
• Designed for surface-mount assembly using a compact 6-SMD gull-wing footprint.

Applications

• General-purpose digital signal isolation in industrial control systems
• Microcontroller interface circuits requiring galvanic separation
• Power supply feedback loops for noise immunity

Procurement Notes

Verify the manufacturer designation as onsemi, reflecting the acquisition of Fairchild Semiconductor's assets. Confirm the specific suffix 'SVM' corresponds to the 6-SMD gull-wing package variant rather than standard DIP configurations. Ensure compliance with RoHS3 directives if required by the target application environment. Cross-reference datasheet revisions to confirm parameter consistency, particularly regarding isolation voltage ratings and thermal characteristics.

Selection Notes

Select this component when surface-mount technology is required for single-channel transistor-output isolation. Compare switching speeds against other CNY17 variants if faster response times are critical, noting the 6µs rise time. Evaluate the 7500 Vrms isolation rating against system safety requirements. Consider the 60mA forward current limit when designing drive circuits for the internal LED.

Part Context

This part belongs to the CNY17 family of phototransistor optocouplers, which typically feature a GaAs IRED paired with an NPN phototransistor. The 'F2' designation generally indicates a specific Current Transfer Ratio (CTR) bin, while 'SVM' denotes the surface-mount package style. This series is widely used for basic isolation tasks where moderate speed and high reliability are needed.

Replacement Considerations

Direct pin-compatible replacements may include other CNY17F2 variants in different packages, such as CNY17F2M or CNY17F2W, provided the package type matches the PCB layout. Verify that substitute components meet the same 7500 Vrms isolation and 70V collector-emitter voltage specifications.