SFH600-3SM

Overview

The SFH600-3SM is a single-channel optocoupler manufactured by Isocom Components 2004 LTD. It features an NPN phototransistor output with a base connection, housed in a surface-mount 6-pin DIP package. The device provides a minimum isolation voltage of 7500Vpk and supports a maximum forward input current of 60 mA. Key electrical parameters include a typical forward voltage of 1.2V, a minimum current transfer ratio of 160%, and a typical fall time of 15µs. It operates within a temperature range of -55°C to 100°C.

Feature Summary

• Integrates an infrared emitting diode with an NPN phototransistor for signal transmission
• Provides high-voltage electrical isolation between input and output circuits
• Designed for surface-mount assembly using a compact 6-pin DIP form factor

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission across isolated ground planes
• Power supply feedback loops

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm pinout configuration and insulation class. Ensure the selected variant matches the required isolation voltage rating for the target application safety standards. Cross-reference the datasheet to confirm the presence of the base terminal on the phototransistor, as this affects circuit design and sensitivity. Confirm compliance with relevant environmental directives before procurement.

Selection Notes

Select this component when a surface-mount solution with high isolation voltage is required. The inclusion of a base terminal allows for improved switching speed and sensitivity compared to standard phototransistor outputs. Consider the 7500Vpk rating for applications demanding robust barrier protection. Evaluate the 160% minimum CTR to ensure adequate drive capability for downstream logic or analog circuits without excessive input current.

Part Context

This device belongs to the SFH600 series of optocouplers from Isocom Components 2004 LTD. The series offers various isolation ratings and packaging options. The SFH600-3SM specifically denotes the surface-mount version with 7500Vpk isolation and NPN transistor output. It serves as a discrete isolation component for digital and analog signal interfacing in electronic assemblies.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.