TE Connectivity Laird MAF94422 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Laird MAF94422 is a dual-band PCB trace RF antenna designed for 802.11ba wireless applications. This antenna operates across 2.4GHz and 5.3625GHz frequency bands with RP-SMA surface mount termination. The MAF94422 is classified as an obsolete product, necessitating identification of equivalent substitute components for ongoing design requirements and system maintenance.

Substiute Parts

MAF94422

TE Connectivity LairdIn Stock: 1255MAF94422 Datasheet

Current PartRFQ

R2T2458LW-RSMA

TE Connectivity LairdIn Stock: 810R2T2458LW-RSMA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute components for the MAF94422 are identified based on the following critical parameters that determine functional compatibility:

Frequency Coverage: The substitute must support dual-band operation across 2.4GHz and 5GHz frequency ranges, with center frequencies and bandwidth encompassing the original specification of 2.4GHz ~ 2.5GHz and 4.9GHz ~ 5.825GHz.

Termination Type: The substitute must utilize RP-SMA connector termination to ensure mechanical and electrical compatibility with existing RF interfaces.

Number of Bands: The substitute must support dual-band (2-band) antenna architecture to maintain equivalent wireless standard support.

Frequency Group Classification: The substitute must operate within UHF (2GHz ~ 3GHz) and SHF (f > 4GHz) frequency groups.

Connector Gender and Polarity: RP-SMA Male termination is required for direct interface compatibility.

The TE Connectivity Laird R2T2458LW-RSMA satisfies these substitution criteria while offering enhanced performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The MAF94422 is classified as obsolete. The R2T2458LW-RSMA maintains active product status with TE Connectivity Laird, ensuring continued availability, technical support, and compliance with current manufacturing standards.

Compliance and Certification: Both components share identical ECCN classification (5A991G) and MSL rating (1 - Unlimited), indicating equivalent regulatory and environmental handling requirements. The R2T2458LW-RSMA is RoHS Compliant, meeting current environmental standards.

Frequency Coverage Alignment: The R2T2458LW-RSMA frequency ranges (2.4GHz ~ 2.485GHz, 4.94GHz ~ 5.85GHz) encompass the MAF94422 operating bands, providing full frequency compatibility for 802.11 wireless applications.

Termination Compatibility: Both components utilize RP-SMA termination, ensuring direct connector compatibility with existing RF interfaces and transmission line systems.

Performance Metrics: The R2T2458LW-RSMA exhibits improved VSWR (1.5 versus 2.0), indicating superior impedance matching and reduced signal reflection characteristics.

Frequently Asked Questions (FAQ)

Q: Can the R2T2458LW-RSMA directly replace the MAF94422 in existing designs?

A: Electrical substitution is supported based on frequency coverage, dual-band architecture, and RP-SMA termination compatibility. Physical integration requires evaluation of mounting type differences: the MAF94422 uses surface mount configuration while the R2T2458LW-RSMA employs bracket mount architecture. PCB layout and mechanical enclosure modifications may be necessary.

Q: What are the key differences between these antenna types?

A: The MAF94422 is a PCB trace antenna with minimal height (1.52mm), suitable for space-constrained embedded applications. The R2T2458LW-RSMA is a panel antenna with 67mm height, designed for external mounting with directional gain characteristics (12dBi, 15dBi). Selection depends on application form factor and performance requirements.

Q: Are the frequency ranges fully compatible?

A: Yes. The R2T2458LW-RSMA frequency ranges (2.4GHz ~ 2.485GHz, 4.94GHz ~ 5.85GHz) fully encompass the MAF94422 specification bands (2.4GHz ~ 2.5GHz, 4.9GHz ~ 5.825GHz), providing complete frequency coverage for dual-band wireless standards.

Q: What is the significance of VSWR differences?

A: The R2T2458LW-RSMA VSWR of 1.5 represents superior impedance matching compared to the MAF94422 VSWR of 2.0. Lower VSWR values indicate reduced signal reflection and improved transmission efficiency across the operating frequency bands.

Q: Are regulatory certifications equivalent?

A: Both components share identical ECCN classification (5A991G) and MSL rating (1 - Unlimited). The R2T2458LW-RSMA includes RoHS Compliance certification, meeting current environmental and hazardous substance restrictions.

Q: What connector specifications must be verified?

A: Both components utilize RP-SMA termination. Verify that existing RF interfaces and transmission line systems are configured for RP-SMA Male connectors to ensure proper mating and electrical continuity.