CNY65AYST

Overview

The CNY65AYST is a single-channel phototransistor output optocoupler from Vishay, designed for surface-mount applications. It integrates an infrared LED and a phototransistor within a compact 4-SMD package. The device provides high isolation voltage of 8200Vrms, ensuring robust electrical separation between input and output circuits. Key electrical parameters include a collector-emitter saturation voltage of 300mV at 1mA/10mA, a forward current rating of 75mA, and a load voltage capacity of 32V. The component operates across a temperature range of -55°C to +85°C, with typical rise and fall times of 2.4µs and 2.7µs respectively.

Feature Summary

• High isolation voltage capability of 8200Vrms for enhanced safety compliance
• Compact 4-SMD surface-mount package design for automated assembly
• Fast switching performance with low propagation delay characteristics

Applications

• General-purpose signal isolation in industrial control systems
• Interface circuits for microprocessors and logic devices
• Power supply feedback loops requiring galvanic isolation

Procurement Notes

Verify the specific suffix 'A' and 'YST' against the official Vishay datasheet to confirm the exact current transfer ratio range and package variant. Ensure that the selected component matches the required isolation voltage ratings for the target application safety standards. Cross-reference the manufacturer part number with authorized distributors to guarantee authenticity and traceability of the semiconductor components.

Selection Notes

Select this component when a surface-mount solution is required for single-channel isolation with high voltage withstand capabilities. Consider the 8200Vrms isolation rating for applications demanding strict safety compliance. Evaluate the 50-150% current transfer ratio range to ensure adequate signal transmission efficiency for the specific circuit requirements and operating temperature conditions.

Part Context

This component belongs to the CNY65 series of transistor output optocouplers manufactured by Vishay Semiconductor Opto Division. The series is known for providing reliable optical isolation in various electronic applications. The CNY65AYST specifically represents the surface-mount version of this family, offering similar electrical characteristics to through-hole variants but optimized for modern PCB assembly techniques.

Replacement Considerations

Consult the official Vishay datasheet for confirmed substitute part numbers within the CNY6x series or equivalent products from other manufacturers that meet identical electrical specifications.