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The SFH617A-1SM is a single-channel transistor output optocoupler manufactured by Isocom Components. It features a surface-mount plastic package with four pins, designed for electrical isolation in electronic circuits. The device integrates an infrared light-emitting diode input with an NPN silicon phototransistor output. Official documentation specifies a high isolation voltage rating of 5300V and a typical RMS isolation voltage of 4470Vrms. These parameters ensure reliable signal transmission while maintaining safety barriers between isolated sections.
Verify the specific manufacturer designation, as Isocom Components may be associated with ISOCOM COMPONENTS 2004 LTD or other entities in distribution channels. Confirm that the part number suffix indicates the correct surface-mount configuration and pin count. Ensure the datasheet matches the required isolation voltage ratings before procurement to avoid compatibility issues with system design specifications.
Select this component when a surface-mount transistor output optocoupler is required for single-channel isolation. Consider the 5300V isolation rating for safety-critical applications. Verify that the forward voltage characteristics align with the driving circuit requirements. Ensure the physical footprint of the four-pin SMD package fits the available PCB space constraints.
This component belongs to the SFH617A series of optocouplers. Variants within this family include DIP packages such as the SFH617A-1-SM and reel-packaged versions like the SFH617A-1XSMT&R. The series generally consists of infrared LEDs coupled with NPN silicon phototransistors, offering various packaging options to suit different assembly needs.
Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing with similar transistor output optocouplers requires independent verification of pinout, isolation voltage, and package dimensions.