SI8430AB-C-IS1 Equivalent & Substitute Parts

Part Overview

The SI8430AB-C-IS1 is a general purpose digital isolator manufactured by Skyworks Solutions Inc. It provides 2500Vrms isolation across 3 channels with a data rate of 1Mbps and capacitive coupling technology. This component is classified as "Not For New Designs," making identification of equivalent substitute parts essential for ongoing production support and legacy system maintenance.

Substiute Parts

SI8430AB-C-IS1

Skyworks Solutions Inc.In Stock: 859SI8430AB-C-IS1 Datasheet

Current PartRFQ

SI8430AB-D-IS1

Skyworks Solutions Inc.In Stock: 1829SI8430AB-D-IS1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SI8430AB-C-IS1 is determined by strict equivalence across the following critical parameters:

• Isolation voltage rating: 2500Vrms
• Channel configuration: 3 channels, unidirectional
• Data rate: 1Mbps
• Common mode transient immunity: 25kV/µs (Typ)
• Supply voltage range: 2.7V ~ 5.5V
• Operating temperature range: -40°C ~ 125°C
• Package type: 16-SOIC (0.154", 3.90mm Width)
• Technology: Capacitive coupling
• Mounting type: Surface mount

The SI8430AB-D-IS1 meets all these parameters and is classified as a parametric equivalent. Both parts share identical electrical specifications and mechanical compatibility, differing only in manufacturing lot designation and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the SI8430AB-C-IS1 and SI8430AB-D-IS1 are classified as "Not For New Designs" and are suitable only for legacy system support and production continuity. The SI8430AB-D-IS1 carries explicit RoHS3 compliance and REACH unaffected status, providing additional regulatory documentation for applications requiring environmental compliance verification. Selection between these parts should be based on inventory availability and regulatory documentation requirements for the end application.

Frequently Asked Questions (FAQ)

Q: Can SI8430AB-D-IS1 be used as a direct replacement for SI8430AB-C-IS1?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, timing characteristics, supply voltage ranges, operating temperature ranges, and 16-SOIC package dimensions. Pin-to-pin compatibility is complete.

Q: What is the difference between SI8430AB-C-IS1 and SI8430AB-D-IS1?

A: The parts are electrically and mechanically identical. The difference lies in manufacturing lot designation (C versus D suffix) and compliance certifications. SI8430AB-D-IS1 explicitly documents RoHS3 compliance and REACH unaffected status.

Q: Are there any package or pinout differences?

A: No. Both parts use the 16-SOIC (0.154", 3.90mm Width) package with identical pinout and mechanical dimensions.

Q: Why is this part marked "Not For New Designs"?

A: This designation indicates the product line is mature and no longer recommended for new design implementations. Substitutes should be evaluated from current product families for new applications.

Q: What are the critical parameters for substitution?

A: Substitution requires matching isolation voltage (2500Vrms), channel count (3), data rate (1Mbps), CMTI (25kV/µs Typ), supply voltage range (2.7V ~ 5.5V), operating temperature range (-40°C ~ 125°C), and package type (16-SOIC).