SFH609-4SMT&R

Overview

The SFH609-4SMT&R is a surface-mount AC input-transistor output optocoupler manufactured by Isocom Components. It features a single channel with six pins in a DIP-style SMD package. The device provides high isolation voltage of 5300 Vrms and supports a maximum forward current of 50 mA. Typical switching characteristics include a rise time of 4 µs and a fall time of 3 µs. The minimum current transfer ratio is specified at 160%, ensuring reliable signal transmission across the isolation barrier for digital applications.

Feature Summary

• AC input configuration compatible with direct mains sensing
• High isolation voltage rating for safety-critical circuits
• Fast switching response suitable for data communication

Applications

• Solid-state relay drivers
• Mains power monitoring systems
• Microprocessor interface circuits

Procurement Notes

Verify the specific suffix and tape-and-reel packaging designation against official Isocom documentation to ensure compatibility with automated assembly processes. Confirm that the component meets all relevant regulatory standards required for your target market, as specifications may vary by production batch or regional compliance requirements.

Selection Notes

Select this component when an AC-input optocoupler with high-speed digital output is required. Ensure the circuit design accommodates the specified forward current limits and isolation voltage ratings. Compare performance metrics such as current transfer ratio and switching times against system requirements to verify suitability for the intended application environment.

Part Context

This part belongs to the SFH609 series of AC-input optocouplers from Isocom Components. These devices are designed to replace legacy components in industrial and consumer electronics. The series offers robust electrical isolation and fast response times, making them suitable for modern power management and control applications requiring galvanic separation.

Replacement Considerations

Cross-reference with equivalent models from other manufacturers if supply constraints exist. Verify pinout compatibility and electrical parameter overlaps before substitution. Consult official datasheets to confirm mechanical dimensions and thermal characteristics match the existing PCB layout.