Fairchild CNY174M Data Handbook
Summary
These advanced phototransistor optocouplers provide reliable electrical signal isolation using an IRED and NPN phototransistor structure. The manual provides comprehensive technical data, including absolute maximum ratings, transfer characteristics (CTR), and detailed isolation specifications for optimal integration. Ideal for engineers designing power supply regulators, sensitive digital logic inputs, microprocessor interfaces, and robust industrial control systems requiring mains-level safety and reliable performance.
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 11 |
| File Size | 254.77 KB |
| Published | July 10, 2026 |
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Frequently Asked Questions
What are the operating temperature limits for these optocouplers?
The recommended operating temperature (OPR T) range is -40 to +100 °C.
How is unit variation minimized when selecting a model?
Choosing devices with closely matched current transfer ratio (CTR) minimizes unit-to-unit variation.
What are the maximum ratings for prolonged storage and operation?
Maximum ratings show storage up to +150 °C, but operating temperature should not exceed +100 °C.