CNY171SM

Transistor, Photovoltaic Output Optoisolators Overview

The CNY171SM is a single-channel optocoupler featuring an AlGaAs infrared LED coupled to a high breakdown voltage NPN phototransistor. It utilizes a 6-SMD surface-mount package with a grounded base configuration. The device provides an isolation voltage of 4170 Vrms and supports a collector-emitter voltage (BVCEO) of 70 V. Key electrical characteristics include a minimum current transfer ratio of 20% at 5 mA forward current, a maximum collector cutoff current of 10 nA, and a transition frequency of 80 kHz.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High breakdown voltage phototransistor output for robust signal integrity
• Grounded base configuration enhances switching speed and stability
• Surface-mount packaging facilitates automated assembly processes

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Microcontroller interface isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'SM' against the manufacturer's latest datasheet to confirm package type and tape-and-reel specifications. Ensure compliance with RoHS directives and check for any recent revision changes that may affect pinout or thermal characteristics before finalizing procurement orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and compact surface-mount form factors are required. The grounded base design offers improved switching performance compared to standard configurations. Evaluate the current transfer ratio requirements against the driving circuit capabilities to ensure adequate noise margin in the target application environment.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the CNY171 series of transistor-output optocouplers. It shares functional similarities with through-hole variants but is optimized for surface-mount technology. The series is designed for general-purpose isolation applications where space constraints and manufacturing efficiency are prioritized over manual assembly flexibility.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct replacements include CNY171VM and CNY17F1SM from onsemi. Verify pin compatibility and electrical parameters such as BVCEO and CTR before substitution.