SI8621ET-AS2

Digital Isolators Overview

The SI8621ET-AS2 is a dual-channel unidirectional digital isolator from the Si862x series, manufactured by Skyworks Solutions Inc. It utilizes capacitive coupling technology to provide electrical isolation with a rated insulation voltage of 5000 Vrms and supports a high data rate of 150 Mb/s. The device operates within a supply voltage range of 2.5 V to 5.5 V and features a typical propagation delay of 8 ns. Designed for robust performance, it offers a common-mode transient immunity of 60 kV/µs. The component is housed in a 16-pin SOIC-Wide package and is qualified under AEC-Q100 standards for automotive applications.

Digital Isolators Feature Summary

• Provides galvanic isolation between circuits using reliable capacitive coupling technology
• Supports high-speed data transmission up to 150 Mbps for efficient signal integrity
• Features high common-mode transient immunity to maintain operation in noisy environments
• Qualified for automotive use according to AEC-Q100 reliability standards

Digital Isolators Applications

• Automotive electronic control units requiring isolated communication interfaces
• Industrial automation systems needing robust signal isolation
• Power conversion equipment utilizing high-voltage isolation requirements

Digital Isolators Procurement Notes

Verify the specific suffix AS2 to confirm the tape-and-reel packaging configuration, as other suffixes may indicate tube packaging. Ensure the order matches the exact part number to guarantee the correct channel count and isolation voltage ratings. Cross-reference the manufacturer's latest datasheet for any recent product change notifications or pinout updates before finalizing procurement specifications.

Digital Isolators Selection Notes

Select this component when a dual-channel unidirectional isolator with 5 kVrms insulation is required. It is suitable for designs demanding high common-mode transient immunity and automotive qualification. Compare against similar parts in the Si862x family if different channel configurations or lower isolation voltages are sufficient for the specific application constraints.

Digital Isolators Part Context

This device belongs to the Si862x family of digital isolators, which are designed to replace traditional magnetic couplers. The family offers various channel counts and isolation levels. The SI8621ET-AS2 specifically provides two channels in a wide SOIC package, balancing performance with board space efficiency for modern electronic designs.

Digital Isolators Replacement Considerations

Check for direct substitutes within the Si862x series that match the 16-pin SOIC-Wide footprint. Verify that alternative parts maintain the same 5000 Vrms insulation rating and 150 Mbps data speed. Ensure any replacement also holds AEC-Q100 qualification if used in automotive contexts.