SFH617A-1X

Overview

The SFH617A-1X is a single-channel optocoupler manufactured by Isocom Components 2004 LTD. It features an infrared LED input and an NPN silicon phototransistor output housed in a 4-pin DIP package. Key electrical parameters include a maximum collector-emitter voltage of 70V, a typical rise time of 4µs, and a typical fall time of 3µs. The device provides an isolation voltage of 4470Vrms and supports a maximum forward current of 60mA with a maximum current transfer ratio of 80%.

Feature Summary

• Provides electrical isolation between input and output circuits using an infrared LED and NPN phototransistor configuration.
• Offers high isolation voltage capability for safe signal transmission across potential differences.
• Features fast switching characteristics with specified typical rise and fall times for digital applications.

Applications

• Signal isolation in microprocessor systems
• Solid-state relay driver circuits
• Logic level translation between different voltage domains

Procurement Notes

Verify the specific suffix designation to ensure compatibility with required packaging formats, such as tube or tape-and-reel configurations. Confirm that the manufacturer designation matches Isocom Components 2004 LTD specifications. Cross-reference datasheet parameters against application requirements to validate performance margins. Ensure compliance with relevant safety standards for the intended isolation voltage class.

Selection Notes

Select this component when a single-channel transistor output isolator is required with moderate speed capabilities. Consider the 70V collector-emitter voltage rating for low-voltage logic interfacing. Evaluate the 4470Vrms isolation rating against system safety requirements. Compare current transfer ratio specifications to ensure adequate drive capability for downstream loads.

Part Context

This part belongs to the SFH617A series of transistor output optocouplers. It is functionally similar to other industry-standard single-channel isolators but is specifically identified under the Isocom Components 2004 LTD branding. The device serves as a fundamental building block for galvanic isolation in electronic circuits requiring signal transmission without direct electrical connection.

Replacement Considerations

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