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CNY651AYST
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Product Detailed Parameters
- Description：4PIN,100-300% HIGH ISOLATION DIS
- Series：*
- Mfr：Vishay Semiconductor Opto Division
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：8200Vrms
- Current Transfer Ratio (Min)：50% @ 5mA
- Current Transfer Ratio (Max)：150% @ 5mA
- Turn On / Turn Off Time (Typ)：5µs, 3µs
- Rise / Fall Time (Typ)：2.4µs, 2.7µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：32V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.32V
- Current - DC Forward (If) (Max)：75 mA
- Vce Saturation (Max)：300mV
- Operating Temperature：-40°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
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Overview
The CNY651AYST is a surface-mount transistor output optocoupler from Vishay. It features an infrared-emitting diode optically coupled to a phototransistor in a 4-SMD Gull Wing package. The device provides high isolation voltage of 8200Vrms and supports one channel. Key electrical parameters include a maximum collector current of 50 mA, forward voltage of 1.32 V, and current transfer ratio ranging from 50% to 150%. Operating temperature range is -40°C to 110°C.
Feature Summary
- High isolation voltage capability for safety-critical applications
- Surface mount design for automated assembly processes
- Optical coupling between infrared diode and phototransistor
Applications
- Industrial control systems requiring galvanic isolation
- Power supply feedback loops
- Signal isolation in communication interfaces
Procurement Notes
Verify component authenticity through authorized distributors. Confirm datasheet revision status matches application requirements. Check moisture sensitivity level handling procedures during storage. Validate RoHS compliance documentation for regulatory adherence. Ensure ordering suffix corresponds to correct packaging configuration.
Selection Notes
Consider thermal management requirements within the specified operating temperature range. Evaluate current transfer ratio variations across production batches. Assess isolation voltage margins relative to system transient conditions. Verify package dimensions against PCB layout constraints. Compare switching characteristics with circuit timing requirements.
Part Context
This component belongs to the CNY651 series of high isolation optocouplers. The series includes both through-hole and surface mount variants. Vishay Semiconductor Opto Division manufactures these devices for industrial applications. The SMD version offers space-saving advantages over traditional DIP packages.
Replacement Considerations
CNY65AYST serves as a similar surface mount alternative within the same product family. Both share comparable isolation ratings and package types. Verify pin compatibility before substitution. Confirm electrical parameter alignment with original design specifications.
