MAF94423 Equivalent & Substitute Parts Reference

Part Overview

The MAF94423 is a 2.442GHz embedded WLAN chip RF antenna manufactured by TE Connectivity Laird, designed for 802.11b/g wireless applications operating in the 2.4GHz ~ 2.484GHz frequency band. This component features a solder surface mount termination and is classified as obsolete. Due to its obsolete product status, identifying functionally equivalent substitute parts is essential for ongoing design support, production continuity, and system maintenance where this antenna is currently deployed.

Substiute Parts

MAF94423

TE Connectivity LairdIn Stock: 1072MAF94423 Datasheet

Current PartRFQ

FXP70.07.0053A

Taoglas LimitedIn Stock: 4962FXP70.07.0053A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAF94423 is determined by the following critical parameters:

Frequency Compatibility: The substitute part must operate within or encompass the 2.4GHz ~ 2.484GHz band to maintain RF performance in 802.11b/g WLAN applications.

RF Standard Support: The substitute must support WiFi (802.11b/g) or broader wireless standards that include WiFi operation.

Frequency Group: Operation within the UHF (2GHz ~ 3GHz) frequency group is required.

Electrical Performance: VSWR and impedance characteristics must be compatible with the original circuit design.

Termination Type: The substitute must provide a compatible RF connector interface (U.FL/IPEX) suitable for the host PCB design.

Mounting and Form Factor: Physical dimensions and mounting method must accommodate the original mechanical constraints.

The FXP70.07.0053A from Taoglas Limited meets these substitution criteria through overlapping frequency range coverage, multi-standard RF support including WiFi, compatible termination options, and active product status ensuring continued availability.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The MAF94423 is classified as obsolete, making the FXP70.07.0053A a necessary alternative for new production and ongoing support. The substitute maintains active product status with Taoglas Limited, ensuring long-term availability and supply chain stability.

Compliance and Certifications: The FXP70.07.0053A is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components. The MAF94423 compliance status for these standards is not specified in the provided data.

Frequency Band Coverage: Both parts operate within the 2.4GHz ISM band required for 802.11b/g WLAN. The FXP70.07.0053A provides slightly tighter frequency range specification (2.4GHz ~ 2.483.5GHz) compared to the MAF94423 (2.4GHz ~ 2.484GHz), with negligible practical difference for WLAN applications.

Electrical Performance: The FXP70.07.0053A demonstrates superior VSWR performance (1.5 versus 2.3), indicating better impedance matching and reduced signal reflection. This represents an improvement over the original part.

Multi-Standard Support: The FXP70.07.0053A supports Bluetooth and Zigbee™ in addition to WiFi, providing design flexibility for applications requiring multiple wireless protocols within the 2.4GHz band.

Frequently Asked Questions (FAQ)

Q: Can the FXP70.07.0053A directly replace the MAF94423 in existing designs?

A: Direct mechanical replacement requires design modification. The MAF94423 uses solder surface mount termination, while the FXP70.07.0053A uses U.FL (UMCC) or IPEX MHF1 connectors with adhesive mounting. PCB layout and connector interface changes are necessary.

Q: What is the impact of different antenna types (Chip versus Flat Patch)?

A: The MAF94423 is a chip antenna with 4.00mm height, while the FXP70.07.0053A is a flat patch antenna with 0.08mm height. The flat patch design offers significantly reduced vertical profile, beneficial for space-constrained applications. Radiation pattern and efficiency characteristics differ between these antenna types and must be evaluated for specific application requirements.

Q: Are the frequency ranges compatible for 802.11b/g operation?

A: Yes. Both parts cover the required 2.4GHz ~ 2.484GHz band for 802.11b/g WLAN. The FXP70.07.0053A frequency range (2.4GHz ~ 2.483.5GHz) encompasses the critical operating band with negligible upper frequency difference.

Q: What does the improved VSWR of 1.5 (FXP70.07.0053A) versus 2.3 (MAF94423) mean?

A: Lower VSWR indicates better impedance matching between the antenna and the RF circuit. The FXP70.07.0053A's VSWR of 1.5 represents superior matching efficiency, resulting in reduced signal reflection and improved RF performance compared to the MAF94423's VSWR of 2.3.

Q: Is the FXP70.07.0053A suitable for applications requiring Bluetooth or Zigbee™ in addition to WiFi?

A: Yes. The FXP70.07.0053A supports 802.15.4, Bluetooth, and WiFi standards, making it suitable for multi-protocol 2.4GHz applications. The MAF94423 is specified for WiFi only.

Q: What are the packaging and inventory considerations?

A: The MAF94423 has 979 pieces in stock (obsolete status). The FXP70.07.0053A has 4885 pieces in stock with active product status, providing superior long-term availability and supply chain reliability.

Q: Are there compliance differences between these parts?

A: The FXP70.07.0053A is explicitly ROHS3 compliant and REACH unaffected. The MAF94423 compliance status for these standards is not specified in available documentation.