SI86S621FE-AS4

Digital Isolators Overview

The SI86S621FE-AS4 is a digital isolator from the Si86S6x series by Skyworks Solutions, Inc. It features two unidirectional channels with capacitive coupling isolation technology. The device supports an insulation voltage of 6000 Vrms and operates within a supply voltage range of 2.25 V to 5.5 V. It provides a data rate of 150 Mb/s and has a typical propagation delay of 13.5 ns. Designed for automotive applications, it functions between -40°C and 125°C. The component is housed in an SOIC-8 package.

Digital Isolators Feature Summary

• Automotive-grade qualification for reliable operation in harsh environments
• High common-mode transient immunity via capacitive coupling architecture
• Unidirectional signal transmission for isolated control interfaces

Digital Isolators Applications

• Automotive powertrain control modules
• On-board charging systems
• Battery management systems

Digital Isolators Procurement Notes

Verify the AS4 suffix indicates automotive grade compliance against specific project requirements. Confirm the SOIC-8 package dimensions match the PCB footprint. Ensure the manufacturer source is authorized to guarantee part authenticity and traceability. Check for RoHS compliance documentation if required by regional regulations.

Digital Isolators Selection Notes

Select this component when automotive reliability and high isolation voltage are critical. The unidirectional configuration suits simple control signal isolation. Compare propagation delay and CMTI specifications against system timing constraints. Ensure the operating temperature range covers the intended environmental conditions.

Digital Isolators Part Context

This part belongs to the Si86S6x family of digital isolators. It shares the core capacitive isolation technology with other variants in the series but is specifically tailored for automotive standards. The FE suffix typically denotes specific packaging or testing configurations within the product line.

Digital Isolators Replacement Considerations

SI86S621HE-AS4 is an alternative automotive version within the same series. Verify pinout compatibility and electrical parameter equivalence before substitution.