SI8410AD-D-IS Digital Isolator Equivalent & Substitute Parts

Part Overview

The SI8410AD-D-IS is a general purpose digital isolator manufactured by Skyworks Solutions Inc., featuring 5000Vrms isolation voltage, 1 channel unidirectional configuration, and 1Mbps data rate in a 16-SOIC package. This component is currently in active product status with 1012 units in stock. Alternative models become necessary when design requirements demand higher data rates, improved common mode transient immunity, enhanced temperature operating ranges, or different packaging configurations while maintaining core isolation functionality.

Substiute Parts

SI8410AD-D-IS

Skyworks Solutions Inc.In Stock: 1077SI8410AD-D-IS Datasheet

Current PartRFQ

ISO721D

Texas InstrumentsIn Stock: 5413ISO721D Datasheet

SimilarRFQ

ISO7810DW

Texas InstrumentsIn Stock: 1294ISO7810DW Datasheet

SimilarRFQ

ISO7810FDW

Texas InstrumentsIn Stock: 1304ISO7810FDW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SI8410AD-D-IS is determined by the following critical parameters: isolation voltage rating, number of channels, channel configuration (unidirectional), package type, and supply voltage compatibility. The substitute parts listed maintain the same isolation technology (capacitive coupling), general purpose classification, and unidirectional 1-channel architecture. However, substitutes may differ in data rate performance, common mode transient immunity, propagation delay characteristics, and operating temperature ranges. Selection of a substitute part requires verification that the application's maximum data rate requirement does not exceed the substitute's rated capability, and that the package footprint is compatible with the PCB design.

Parameter Comparison

Engineering Selection Recommendations

ISO7810FDW and ISO7810DW from Texas Instruments represent the most direct functional equivalents to the SI8410AD-D-IS, maintaining identical 16-SOIC package geometry and offering superior performance specifications including higher isolation voltage (5700Vrms vs 5000Vrms), enhanced common mode transient immunity (100kV/µs vs 20kV/µs), and extended data rate capability (100Mbps vs 1Mbps). Both ISO7810 variants are ROHS3 compliant and REACH unaffected, with ISO7810FDW available in tube packaging matching the original part's format. ISO7810DW is supplied in bulk packaging. Both maintain active product status with adequate inventory availability.

ISO721D from Texas Instruments offers an alternative for applications where package size reduction is acceptable. This 8-SOIC variant provides higher data rate performance (100Mbps) and superior common mode transient immunity (25kV/µs) but features reduced isolation voltage (2500Vrms) and a smaller footprint. ISO721D carries last time buy status, indicating limited future availability.

For applications requiring continued supply of the original Skyworks part, the SI8410AD-D-IS maintains active status with 1012 units currently in stock.

Frequently Asked Questions (FAQ)

Q: Can ISO721D replace SI8410AD-D-IS in all applications? A: ISO721D is not a direct replacement due to package incompatibility (8-SOIC vs 16-SOIC) and reduced isolation voltage rating (2500Vrms vs 5000Vrms). Substitution is only valid if the application's PCB layout accommodates the smaller 8-SOIC footprint and the isolation voltage requirement does not exceed 2500Vrms.

Q: What are the key differences between ISO7810FDW and ISO7810DW? A: ISO7810FDW and ISO7810DW are functionally identical in electrical specifications. The primary difference is packaging format: ISO7810FDW is supplied in tube packaging, while ISO7810DW is supplied in bulk. Both use the same 16-SOIC case and are pin-compatible with SI8410AD-D-IS.

Q: Is the SI8410AD-D-IS suitable for high-speed applications? A: The SI8410AD-D-IS is rated for 1Mbps data rate, making it suitable for low to moderate speed applications. For applications requiring 100Mbps or higher data rates, ISO7810FDW or ISO7810DW are recommended alternatives.

Q: What is the impact of supply voltage range differences? A: SI8410AD-D-IS operates from 2.7V to 5.5V, while ISO7810 variants operate from 2.25V to 5.5V. ISO7810 parts offer extended low-voltage operation capability. For applications operating above 2.25V, both part families are compatible.

Q: Why is ISO721D marked as Last Time Buy? A: Last Time Buy status indicates Texas Instruments has discontinued this product line. Existing inventory may be available, but future procurement cannot be guaranteed. For new designs, ISO7810FDW or ISO7810DW are recommended as long-term alternatives.

Q: Are all substitute parts RoHS compliant? A: ISO7810FDW and ISO7810DW are ROHS3 compliant. SI8410AD-D-IS compliance status is not specified in the provided data. ISO721D is ROHS3 compliant.