SFH617A-4SMT&R

Overview

The SFH617A-4SMT&R is a surface-mount optocoupler manufactured by Isocom Components 2004 LTD. It features a single channel with an NPN phototransistor output housed in a 4-pin SMPDIP package. Key electrical parameters include a maximum forward voltage of 1.5V, a typical rise time of 4µs, and a typical fall time of 3µs. The device supports a maximum input current of 50 mA and provides an isolation voltage of 5.3 kVrms. Current transfer ratios range from a minimum of 160% to a maximum of 500%.

Feature Summary

• Surface-mount configuration for automated assembly
• High isolation voltage rating
• Fast switching response times
• Wide current transfer ratio range

Applications

• General-purpose signal isolation
• Digital communication interfaces
• Microcontroller input/output isolation

Procurement Notes

Verify the specific suffix 'SMT&R' confirms the surface-mount tape-and-reel packaging format. Ensure the supplier source matches Isocom Components 2004 LTD specifications. Cross-reference pinout compatibility with existing PCB footprints before procurement.

Selection Notes

Select this component when surface-mount technology is required for space-constrained designs. The high CTR range accommodates varying drive conditions. Verify thermal management requirements align with the package's power dissipation capabilities during operation.

Part Context

This part belongs to the SFH617A series of transistor-output optocouplers. It serves as a surface-mount variant of through-hole equivalents like the SFH617A-4. The series is designed for general-purpose isolation applications requiring reliable signal transmission between isolated circuits.

Replacement Considerations

SFH617A-4 is a verified through-hole equivalent. VO617A-4X016 is listed as a recommended alternative.