SFH617G-1X

Overview

The SFH617G-1X is a single-channel optically coupled isolator manufactured by Isocom Components. It integrates an infrared light-emitting diode with an NPN silicon phototransistor in a space-efficient 4-DIP package. The device supports through-hole mounting and DC input operation. Key electrical specifications include a maximum forward voltage of 1.65V, a maximum input current of 60mA, and a typical rise time of 2µs. It offers an isolation voltage of 5300Vrms (7500V peak) and a typical fall time of 11µs.

Feature Summary

• Integrates an infrared LED with an NPN silicon phototransistor for signal isolation
• Provides high insulation capability with 5300Vrms isolation voltage rating
• Designed for low input current applications to enhance efficiency
• Utilizes a standard 4-pin dual in-line package for reliable through-hole integration

Applications

• General-purpose signal isolation in electronic circuits
• Interface between microcontrollers and high-voltage systems
• Industrial control system signal transmission
• Power supply feedback loop isolation

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to ensure correct pinout and performance characteristics. Confirm that the procurement channel provides genuine components from Isocom Components or authorized distributors. Cross-reference the part number with the latest datasheet to validate compliance with required safety standards such as UL1577 or IEC 60065 if applicable to your design.

Selection Notes

Select this component when a single-channel isolation solution with moderate speed and high voltage tolerance is required. Consider the 4-DIP package constraints for PCB layout and verify that the input current requirements align with the source circuit capabilities. Ensure the operating temperature range meets the environmental conditions of the intended application.

Part Context

The SFH617G series represents a family of optocouplers designed for efficient space utilization and reliable optical coupling. This specific model belongs to the SFH617G line, which emphasizes low input current operation while maintaining robust isolation performance. It serves as a fundamental building block for creating electrically isolated communication paths in various electronic assemblies.

Replacement Considerations

Direct substitutes may include other single-channel transistor output optocouplers with similar DIP-4 packaging and comparable isolation ratings. Verify pin compatibility and electrical parameters before substitution. Consult official replacement lists from Isocom Components for validated alternative part numbers.