CNY75CSM

Overview

The CNY75CSM is a single-channel optocoupler manufactured by Isocom Components 2004 LTD. It features a phototransistor output with an integrated base for enhanced switching performance and noise immunity. The device provides electrical isolation of 5300Vrms between input and output circuits. It utilizes a surface-mount 6-SMD, Gull Wing package configuration. The component supports DC input operation with a maximum forward voltage of 1.65V and a maximum input current of 60mA. Typical rise and fall times are specified at 2µs and 11µs respectively, ensuring reliable signal transmission in isolated applications.

Feature Summary

• Integrated phototransistor base terminal improves switching speed and reduces susceptibility to electromagnetic interference.
• High isolation voltage rating ensures robust separation between low-voltage control circuits and high-voltage loads.
• Surface-mount packaging facilitates automated assembly and compact printed circuit board design.

Applications

• Signal isolation in industrial automation control systems
• Interface circuits for microcontrollers driving relay or motor loads
• Noise suppression in power supply feedback loops

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm pinout compatibility and package dimensions. Ensure that the selected variant meets the required isolation voltage standards for the target application environment. Cross-reference ordering codes with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status if restricted substance regulations apply to the final product assembly.

Selection Notes

Select this component when high-speed switching and noise immunity are critical requirements due to the base-driven phototransistor architecture. Compare the 5300Vrms isolation rating against system safety standards to ensure adequate margin. Evaluate the surface-mount footprint constraints against available PCB real estate. Consider thermal management requirements based on the maximum forward current specifications during continuous operation.

Part Context

This part belongs to the CNY75 series of optocouplers designed for general-purpose isolation tasks. It serves as a surface-mount alternative to through-hole variants like the CNY17 series, offering similar functional characteristics in a compact form factor. The integration of the base connection distinguishes it from standard phototransistor outputs, providing faster response times suitable for digital communication interfaces.

Replacement Considerations

Publicly confirmed substitute part numbers for CNY75CSM are not available in the provided source material. Verify pin compatibility and electrical parameters before considering generic equivalents.