SI2415-C-FSR Equivalent & Substitute Parts

Part Overview

The SI2415-C-FSR is a 2.4k modem interface IC manufactured by Skyworks Solutions Inc., designed for system-side DAA (Data Access Arrangement) applications. It supports multiple modem standards including V.21, V.22, V.23, V.29, V.32, Bell 103, and Bell 212A protocols. The device is packaged in a 16-SOIC surface mount configuration with a supply voltage range of 3V to 3.6V.

This part carries a "Not For New Designs" status, indicating it has been superseded in the manufacturer's product roadmap. Identifying equivalent substitute parts is necessary for ongoing maintenance, legacy system support, and component procurement continuity.

Substiute Parts

SI2415-C-FSR

Skyworks Solutions Inc.In Stock: 2612SI2415-C-FSR Datasheet

Current PartRFQ

SI2415-D-FSR

Skyworks Solutions Inc.In Stock: 1175SI2415-D-FSR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SI2415-C-FSR is determined by strict alignment across the following critical parameters:

• Modem Protocol Support: All substitute parts must support the complete set of data formats (V.21, V.22, V.23, V.29, V.32, Bell 103, Bell 212A)
• Baud Rate Capability: 2.4k baud rate support is mandatory
• Supply Voltage Range: 3V to 3.6V operating range must be maintained
• Package Configuration: 16-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm Width)
• Moisture Sensitivity: MSL 3 classification must be preserved
• Base Product Family: Parts must belong to the SI2415 base product number family

The SI2415-D-FSR meets all substitution criteria as a direct equivalent within the ISOmodem® series from the same manufacturer.

Parameter Comparison

Engineering Selection Recommendations

The SI2415-D-FSR is a direct functional equivalent to the SI2415-C-FSR. Both parts share identical electrical specifications, protocol support, package configuration, and moisture sensitivity classification. The primary distinction is product lifecycle status: the SI2415-C-FSR is designated "Not For New Designs," while the SI2415-D-FSR maintains "Active" status from the manufacturer.

For applications requiring component replacement or procurement of the SI2415-C-FSR, the SI2415-D-FSR provides full compatibility without design modification. The active product status of the SI2415-D-FSR ensures ongoing manufacturer support, availability, and compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can the SI2415-D-FSR be used as a direct replacement for the SI2415-C-FSR?

A: Yes. Both parts are members of the SI2415 base product family within the ISOmodem® series. They share identical electrical parameters, protocol support (V.21, V.22, V.23, V.29, V.32, Bell 103, Bell 212A), baud rate capability (2.4k), supply voltage range (3V to 3.6V), and 16-SOIC package configuration. No circuit design changes are required.

Q: Are there any physical differences between these parts?

A: No. Both the SI2415-C-FSR and SI2415-D-FSR use the same 16-SOIC package with 0.154" width and 3.90mm dimensions. Pin configuration, lead spacing, and mounting requirements are identical.

Q: What is the significance of the "Not For New Designs" status?

A: This designation indicates the SI2415-C-FSR has been superseded in the manufacturer's product roadmap. The SI2415-D-FSR, with "Active" status, represents the current supported variant. For legacy system maintenance, the SI2415-C-FSR remains functionally valid; however, new designs should utilize the SI2415-D-FSR.

Q: Are moisture sensitivity requirements the same?

A: Yes. Both parts carry MSL 3 classification with a 168-hour moisture absorption limit. Identical storage, handling, and reflow procedures apply to both variants.

Q: What compliance certifications apply to these parts?

A: Both parts share identical ECCN (5A991B2) and HTSUS (8542.39.0001) classifications, ensuring equivalent regulatory and trade compliance status.