CNY75ASM

Overview

The CNY75ASM is a surface-mount optocoupler manufactured by Isocom Components. It features a single channel with an infrared LED input and an NPN phototransistor output equipped with a base terminal. The device utilizes a 6-pin PDIP SMD package for PCB integration. Key electrical specifications include a maximum forward voltage of 1.65V, a maximum input current of 60 mA, and an isolation voltage rating of 5300 Vrms. Typical switching characteristics consist of a rise time of 2µs and a fall time of 11µs.

Feature Summary

• Integrates an infrared emitting diode with an NPN phototransistor output featuring a dedicated base terminal for enhanced control capabilities.
• Provides high-voltage electrical isolation between input and output circuits to ensure signal integrity in noisy environments.
• Designed for surface-mount technology (SMD) installation within a compact 6-pin DIP-style footprint.

Applications

• Signal isolation in microprocessor-based control systems
• Switching power supply feedback loops
• Solid-state relay driver circuits

Procurement Notes

Verify the specific suffix 'ASM' against official manufacturer documentation to confirm the exact pinout configuration and tape-and-reel packaging specifications. Ensure compatibility with standard surface-mount reflow soldering profiles. Cross-reference the component marking code on received units with the official datasheet to authenticate the source and prevent counterfeit substitution.

Selection Notes

Select this component when a phototransistor output with a base terminal is required for improved switching speed or linearity compared to standard configurations. The SMD package facilitates automated assembly processes. Evaluate the 5300 Vrms isolation rating against system safety requirements. Confirm that the 60 mA maximum input current aligns with the driving circuit's output capabilities.

Part Context

This component belongs to the CNY75 series of optocouplers produced by Isocom Components. The series is characterized by the inclusion of a base terminal on the output transistor, distinguishing it from basic phototransistor isolators. The ASM designation indicates the surface-mount variant of the traditional through-hole CNY75 device, maintaining functional equivalence while adapting to modern PCB manufacturing techniques.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference data. Verify pin-for-pin compatibility with generic CNY75-4 equivalents if sourcing from alternative distributors, ensuring the base terminal functionality is preserved.