CNY64AGRST

Overview

The CNY64AGRST is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output with a maximum collector-emitter voltage of 32 V and a maximum collector current of 50 mA. The device provides a high isolation voltage of 8200 Vrms. The current transfer ratio ranges from 100% to 300% at a forward current of 5 mA. Electrical characteristics include a maximum forward current of 75 mA, a typical forward voltage of 1.32 V, and a maximum collector-emitter saturation voltage of 300 mV. Switching times are specified as 2.4 µs for rise time and 2.7 µs for fall time. The component operates within a temperature range of -55°C to +85°C and is housed in a 4-SMD鸥翼 (gull-wing) package.

Feature Summary

• High insulation voltage rating of 8200 Vrms for robust signal isolation
• NPN phototransistor output configuration supporting up to 50 mA load current
• Surface-mount 4-SMD gull-wing package design for automated assembly

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission across isolated ground planes
• Power supply feedback loop isolation circuits

Procurement Notes

Verify the specific suffix 'AGRST' corresponds to the 4-SMD gull-wing package variant rather than through-hole DIP configurations found in other CNY64 series parts. Confirm RoHS compliance status and moisture sensitivity level requirements for your manufacturing process. Ensure the supplier documentation explicitly references the Vishay Semiconductor Opto Division datasheet for accurate electrical parameters. Cross-reference the part number against recent Product Change Notices to verify any potential pinout or material updates.

Selection Notes

Select this component when high isolation voltage is critical alongside surface-mount space constraints. The CNY64AGRST offers a balance of moderate switching speed and high current transfer ratio suitable for general-purpose digital isolation. Compare against CNY65AGRST if higher current transfer ratio consistency is required, noting that both share similar packaging but may differ in specific optical characteristics. Ensure the input LED forward voltage drop aligns with your driving circuit capabilities.

Part Context

This component belongs to the CNY6x series of transistor output optocouplers from Vishay. The series is characterized by very high isolation voltages and standard NPN phototransistor outputs. The CNY64AGRST specifically denotes the surface-mount version, distinguishing it from the through-hole CNY64 DIP-4 variant. This family is widely used in applications demanding reliable electrical isolation between low-voltage control circuits and higher-voltage power stages.

Replacement Considerations

The CNY65AGRST is a confirmed substitute within the same series, offering similar packaging and isolation voltage but potentially different current transfer ratio specifications. Verify pin compatibility and electrical parameter margins before substitution. Other generic transistor output optocouplers may require redesign of biasing networks due to differences in current transfer ratio and switching speeds.