MAF94412 Equivalent & Substitute Parts Reference

Part Overview

The MAF94412 is a 2.442GHz WLAN chip RF antenna manufactured by TE Connectivity Laird, designed for surface mount applications in the 2.4GHz to 2.484GHz frequency band. This component operates within the UHF frequency group and is classified as a single-band chip antenna with a VSWR of 2.3. The product is currently obsolete, making identification of functionally equivalent substitute components essential for legacy system support, design updates, and procurement continuity.

Substiute Parts

MAF94412

TE Connectivity LairdIn Stock: 882MAF94412 Datasheet

Current PartRFQ

S131CL-6-PX-2450S

Nearson Inc.In Stock: 1298S131CL-6-PX-2450S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAF94412 is determined by alignment across the following critical parameters:

Frequency Compatibility: The substitute must operate within or encompass the 2.4GHz to 2.484GHz band to maintain RF performance in WLAN applications.

Frequency Group: Both parts must operate within the UHF (2GHz ~ 3GHz) classification.

Number of Bands: Single-band operation is required to match the original specification.

VSWR Performance: The substitute VSWR must be equal to or better than 2.3 to ensure impedance matching and signal efficiency.

Termination Type: The substitute must provide compatible termination for circuit integration. The MAF94412 uses solder termination; substitutes may employ alternative termination methods (such as connector-based termination) provided the electrical interface is compatible with the application circuit.

Mounting Approach: While the MAF94412 uses surface mount solder attachment, substitutes may employ connector mount or other mechanical attachment methods if the RF performance and frequency characteristics align.

The S131CL-6-PX-2450S meets these substitution criteria through overlapping frequency range (2.4GHz ~ 2.5GHz), single-band operation, superior VSWR (2.0), and UHF frequency group classification.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Product Replacement: The MAF94412 is classified as obsolete. The S131CL-6-PX-2450S is an active product from Nearson Inc., ensuring ongoing availability and supply chain continuity.

Compliance Considerations: The S131CL-6-PX-2450S carries RoHS Compliant certification, meeting modern environmental and regulatory standards. The substitute also carries ECCN EAR99 classification, which differs from the MAF94412's ECCN 5A991G; compliance verification with applicable export control regulations is required before substitution.

RF Performance: The S131CL-6-PX-2450S demonstrates improved VSWR (2.0 versus 2.3), indicating superior impedance matching. Both parts operate within the UHF frequency group and support single-band WLAN operation across the 2.4GHz band.

Physical and Mechanical Differences: The substitute employs connector-based termination (U.FL/IPEX MHF1) rather than direct solder attachment, and uses a whip/tilt antenna form factor with significantly greater height (87mm versus 4mm). These differences require circuit board redesign and mechanical integration assessment.

Inventory Status: The S131CL-6-PX-2450S has 1253 units in stock, providing immediate procurement availability compared to the obsolete MAF94412.

Frequently Asked Questions (FAQ)

Q: Can the S131CL-6-PX-2450S directly replace the MAF94412 without circuit modification?

A: No. The S131CL-6-PX-2450S uses connector-based termination (U.FL/IPEX MHF1) while the MAF94412 uses solder termination. Circuit board redesign is required to accommodate the connector interface. Additionally, the substitute's whip/tilt form factor and 87mm height differ significantly from the MAF94412's 4mm chip antenna profile, requiring mechanical integration changes.

Q: Are both parts suitable for WLAN applications?

A: Yes. Both the MAF94412 and S131CL-6-PX-2450S are specified for WLAN applications and operate within the 2.4GHz frequency band required for WiFi standards.

Q: What is the significance of the VSWR difference between the two parts?

A: The S131CL-6-PX-2450S has a VSWR of 2.0 compared to the MAF94412's VSWR of 2.3. Lower VSWR indicates better impedance matching and more efficient RF energy transfer. The substitute provides improved RF performance in this parameter.

Q: Does the frequency range difference affect compatibility?

A: The MAF94412 operates from 2.4GHz to 2.484GHz, while the S131CL-6-PX-2450S operates from 2.4GHz to 2.5GHz. The substitute's range encompasses the original part's range, ensuring coverage of the required WLAN band. The extended upper frequency limit (2.5GHz) provides additional bandwidth margin.

Q: What are the compliance implications of substitution?

A: The S131CL-6-PX-2450S is RoHS Compliant, meeting modern environmental standards. However, the ECCN classification differs (EAR99 versus 5A991G). Export control compliance must be verified for your specific application and jurisdiction before proceeding with substitution.

Q: Is the 2dBi gain specification of the S131CL-6-PX-2450S a significant advantage?

A: The S131CL-6-PX-2450S provides 2dBi gain, while the MAF94412 gain is not specified. Gain specification indicates directional radiation characteristics. The substitute's specified gain may provide performance benefits in specific antenna orientation scenarios, though this depends on application-specific deployment requirements.

Q: What packaging differences exist between these parts?

A: The MAF94412 is supplied in standard packaging (not specified in detail), while the S131CL-6-PX-2450S is supplied in Bulk packaging. Inventory availability is 861 units for the obsolete MAF94412 and 1253 units for the active S131CL-6-PX-2450S.