CAF28871 Equivalent & Substitute Parts Reference

Part Overview

The CAF28871 is an RF antenna manufactured by TE Connectivity Laird, designated as an MMCX duck coaxial antenna within the WCP series. This component is classified as obsolete, indicating discontinuation from the manufacturer. Due to its obsolete status, identification of functionally equivalent substitute parts is necessary for ongoing system support, maintenance, and new design implementations requiring comparable RF antenna performance characteristics.

Substiute Parts

CAF28871

TE Connectivity LairdIn Stock: 1220CAF28871 Datasheet

Current PartRFQ

S151FL-5-RMM-2450S

Nearson Inc.In Stock: 1105S151FL-5-RMM-2450S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete CAF28871 is based on the following critical parameters that define functional equivalence:

Primary Substitution Criteria:

• Connector Type: MMCX termination is the controlling mechanical interface requirement
• Frequency Band: RF antenna operation within compatible frequency ranges
• Product Status: Active manufacturing status ensures long-term availability
• Compliance Standards: RoHS compliance and export classification alignment

The substitute part S151FL-5-RMM-2450S meets these criteria through MMCX connector compatibility and active product status. This substitute operates within the UHF frequency band (2GHz ~ 3GHz) with specific operation at 2.4GHz ~ 2.5GHz, providing defined RF performance parameters absent from the original part specification.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement:

The CAF28871 is classified as obsolete. The substitute part S151FL-5-RMM-2450S is manufactured by Nearson Inc. and maintains active product status, ensuring continued availability and supply chain reliability.

Compliance Considerations:

The substitute part S151FL-5-RMM-2450S carries RoHS Compliant certification, meeting environmental and regulatory requirements for modern applications. The ECCN classification changes from 5A991G to EAR99, which may affect export documentation requirements depending on destination jurisdiction.

Connector Compatibility:

Both parts utilize MMCX termination, ensuring mechanical and electrical interface compatibility at the connector level.

Frequency Band Alignment:

The substitute part operates within defined frequency parameters (2.4GHz ~ 2.5GHz), whereas the original part specification does not include frequency data. Applications requiring operation within this frequency band can utilize the substitute with documented RF performance characteristics (5dBi gain, VSWR 2).

Frequently Asked Questions (FAQ)

Q: Can S151FL-5-RMM-2450S directly replace CAF28871 in all applications?

A: Direct replacement is possible only when the application operates within the 2.4GHz ~ 2.5GHz frequency band. The original CAF28871 specification does not document frequency range, antenna type, or RF performance parameters. System-level validation is required to confirm frequency band compatibility.

Q: What is the primary mechanical compatibility factor?

A: Both parts utilize MMCX connectors, providing mechanical and electrical interface compatibility. The substitute features a whip/tilt antenna form factor with maximum height of 7.618" (193.50mm), which differs from the original duck coaxial design. Physical space constraints must be evaluated.

Q: Are there compliance differences between the original and substitute?

A: Yes. The substitute part is RoHS Compliant, whereas the original part specification does not document RoHS status. The ECCN classification differs (5A991G vs. EAR99), which may impact export licensing requirements. The HTSUS commodity codes also differ (8529.10.9100 vs. 8517.71.0000), affecting tariff classification.

Q: What is the inventory status for both parts?

A: CAF28871 has 1114 pieces in stock as new original inventory. S151FL-5-RMM-2450S has 1013 pieces in stock. Both are available for immediate procurement.

Q: How do the RF performance specifications compare?

A: The substitute part provides documented RF performance: 5dBi gain and VSWR of 2. The original part does not include these specifications in the provided data. Applications with specific RF performance requirements must validate that the substitute's documented characteristics meet system requirements.

Q: What packaging format is available for the substitute?

A: The substitute part S151FL-5-RMM-2450S is supplied in bulk packaging, whereas the original part packaging format is not specified.