SI8661BC-AS1R

Digital Isolators Overview

The SI8661BC-AS1R is a Skyworks Solutions digital isolator featuring six channels with unidirectional signal transmission. It utilizes capacitive coupling technology to provide an insulation voltage of 3750 Vrms. The device supports data rates up to 150 Mb/s and operates within a supply voltage range of 2.375 V to 5.5 V. Key electrical characteristics include a propagation delay of 8 ns, maximum rise and fall times of 4 ns, and a pulse width distortion of 0.2 ns. It functions reliably across a temperature range of -40°C to +125°C and is housed in a SOIC-NB-16 package.

Digital Isolators Feature Summary

• Six-channel unidirectional digital isolation using capacitive coupling
• High-speed data transmission capability at 150 Mb/s
• Automotive-grade reliability with extended temperature operation
• Integrated internal power regulation for simplified design

Digital Isolators Applications

• Automotive battery management systems
• Motor control interfaces
• Industrial communication gateways
• Inverter drive circuits

Digital Isolators Procurement Notes

Verify the specific suffix 'AS1R' against official Skyworks documentation to confirm reel packaging and orientation markings. Ensure compatibility with AEC-Q100 automotive qualification requirements if applicable to the target application. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before procurement.

Digital Isolators Selection Notes

Select this component when high channel density and low power consumption are required in space-constrained designs. The unidirectional configuration suits applications where signal flow is strictly one-way. Consider the 3750 Vrms isolation rating for safety-critical boundaries. Evaluate the 150 Mb/s speed against system timing constraints to ensure adequate performance margins.

Digital Isolators Part Context

This part belongs to the Si866x family of ultra-low power digital isolators from Skyworks Solutions. It complements other variants like the SI8661BC-AS1 by offering reel packaging options suitable for automated surface-mount assembly processes. The series is designed to replace optocouplers in modern electronic systems while providing superior performance and reliability.

Digital Isolators Replacement Considerations

Direct substitutes include the SI8661BC-AS1 for tube-packaged equivalents or the SI8661BD-AS for higher isolation ratings. Verify pinout compatibility and thermal characteristics when transitioning between different packaging styles within the same functional family.