SI2418-A-FTR Equivalent & Substitute Parts

Part Overview

The SI2418-A-FTR is an ISOmodem® V.32 interface IC manufactured by Skyworks Solutions Inc., designed for fax system-side applications in a 24-TSSOP surface mount package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing system support and new designs. The SI2418-A-FTR remains available in inventory (911 pcs), but obsolete status requires engineers to evaluate active alternatives for long-term component sourcing and supply chain continuity.

Substiute Parts

SI2418-A-FTR

Skyworks Solutions Inc.In Stock: 981SI2418-A-FTR Datasheet

Current PartRFQ

SI2417-C-FT

Skyworks Solutions Inc.In Stock: 934SI2417-C-FT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SI2418-A-FTR is determined by the following critical parameters:

• Data Format Compatibility: Both parts must support V.32 modem protocol
• Package Compatibility: Both parts must use 24-TSSOP surface mount package with identical physical dimensions (0.173", 4.40mm Width)
• Functional Category: Both parts must operate as Interface ISOmodem® components
• Moisture Sensitivity: MSL rating of 3 (168 Hours) must be maintained
• Supply Voltage: The substitute part operates at 3.3V, which differs from the main part but remains within the same functional class

The SI2417-C-FT qualifies as a direct substitute based on matching data format, identical package specification, equivalent MSL rating, and identical HTSUS classification. The primary distinction is product status: SI2417-C-FT is active, whereas SI2418-A-FTR is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The SI2417-C-FT is the qualified substitute for SI2418-A-FTR based on the following engineering criteria:

Functional Equivalence: Both components implement V.32 modem protocol within the ISOmodem® series and share identical 24-TSSOP package specifications, ensuring direct pin-for-pin and footprint compatibility.

Product Status Advantage: SI2417-C-FT maintains active product status with Skyworks Solutions Inc., providing assured long-term availability and continued manufacturer support. The SI2418-A-FTR obsolete classification limits future sourcing options.

Compliance Alignment: Both parts carry identical HTSUS classification (8542.39.0001) and equivalent MSL ratings, maintaining regulatory and environmental handling requirements.

Supply Chain Continuity: SI2417-C-FT inventory (834 pcs) supports immediate component availability for new designs and system replacements.

Frequently Asked Questions (FAQ)

Q: Can SI2417-C-FT be used as a direct replacement for SI2418-A-FTR in existing designs?

A: Yes. Both components share identical package geometry (24-TSSOP), pin count, and V.32 data format specification. PCB footprints and electrical interfaces are compatible. The primary difference is supply voltage specification (3.3V for SI2417-C-FT versus unspecified for SI2418-A-FTR) and active versus obsolete product status.

Q: What is the significance of the obsolete status for SI2418-A-FTR?

A: Obsolete status indicates that Skyworks Solutions Inc. no longer manufactures this component. While current inventory exists (911 pcs), future availability cannot be assured. SI2417-C-FT, with active status, provides guaranteed long-term sourcing for new production and system maintenance.

Q: Are the MSL ratings equivalent between these parts?

A: Yes. Both SI2418-A-FTR and SI2417-C-FT carry MSL 3 (168 Hours) classification, requiring identical moisture control and handling procedures during storage, transport, and assembly.

Q: Does packaging format affect substitution compatibility?

A: Packaging format (Tube for SI2417-C-FT versus unspecified for SI2418-A-FTR) affects logistics and handling but does not impact electrical or mechanical compatibility. Both parts are surface mount components in identical 24-TSSOP packages.

Q: What export control classifications apply to these parts?

A: SI2418-A-FTR carries ECCN 5A991B2, while SI2417-C-FT carries ECCN EAR99. Both share identical HTSUS code 8542.39.0001. Verify current export control requirements for your specific application and destination.