SA24-120-9 Equivalent & Substitute Parts Reference

Part Overview

The SA24-120-9 is a 2.4GHz panel RF antenna manufactured by TE Connectivity Laird, designed for Wi-Fi and WiMax applications. This component features an N Type Female connector with bracket mount configuration, delivering 9dBi gain across the 2.4GHz to 2.485GHz frequency band. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new design implementations.

Substiute Parts

SA24-120-9

TE Connectivity LairdIn Stock: 941SA24-120-9 Datasheet

Current PartRFQ

MD24-12

TE Connectivity LairdIn Stock: 1022MD24-12 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SA24-120-9 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Frequency Group: UHF (2GHz ~ 3GHz)
• Center Frequency: 2.4GHz
• Antenna Type: Panel
• Termination: N Type Female
• Mounting Type: Bracket Mount
• RF Family/Standard: WiFi

Secondary Compatibility Criteria:

• VSWR: 1.5 (matching impedance performance)
• Return Loss: -14dB (matching reflection characteristics)
• Power Rating: 100 W (matching power handling)
• RoHS Compliance: Required

The MD24-12 qualifies as a substitute based on alignment across all primary and secondary compatibility criteria. Both components operate within the 2.4GHz band, utilize identical termination and mounting configurations, and maintain equivalent electrical performance specifications.

Parameter Comparison

Engineering Selection Recommendations

For SA24-120-9 Replacement:

The MD24-12 serves as the primary substitute for the obsolete SA24-120-9. Both components are manufactured by TE Connectivity Laird and maintain identical electrical performance across VSWR, return loss, and power handling specifications. Both are RoHS compliant and operate within the 2.4GHz frequency band with N Type Female termination and bracket mount configuration.

Key Differences Requiring Design Consideration:

The MD24-12 provides 12dBi gain compared to the SA24-120-9's 9dBi gain, representing a 3dB increase in directional performance. The MD24-12 physical height is 4.016 inches (102.00mm) versus 2.500 inches (63.50mm) for the SA24-120-9. These dimensional and performance differences must be evaluated against specific application requirements, including available mounting space and desired antenna directivity.

Product Status Advantage:

The MD24-12 maintains active product status with current manufacturing support, ensuring long-term availability and supply chain continuity compared to the obsolete SA24-120-9.

Frequently Asked Questions (FAQ)

Q: Can the MD24-12 directly replace the SA24-120-9 in existing installations?

A: The MD24-12 is electrically compatible with the SA24-120-9 across all core RF parameters including frequency range, termination type, VSWR, return loss, and power rating. However, the increased physical height (102.00mm versus 63.50mm) requires verification of available mounting space. The 3dB gain increase may alter system performance characteristics and should be evaluated for the specific application.

Q: What are the primary compatibility criteria for SA24-120-9 substitution?

A: Substitute components must operate within the 2.4GHz frequency band, utilize N Type Female termination, employ bracket mount configuration, maintain 1.5 VSWR and -14dB return loss, support 100W power handling, and comply with RoHS requirements.

Q: Why is the SA24-120-9 classified as obsolete?

A: The SA24-120-9 has reached end-of-life status in the manufacturer's product portfolio. The MD24-12 represents the active equivalent offering from TE Connectivity Laird for 2.4GHz panel antenna applications.

Q: How do the gain differences between SA24-120-9 and MD24-12 affect system performance?

A: The MD24-12's 12dBi gain versus the SA24-120-9's 9dBi gain represents increased directional concentration of radiated power. This 3dB difference impacts antenna radiation patterns and coverage characteristics. System-level performance evaluation is required to determine suitability for specific deployment scenarios.

Q: Are both components RoHS compliant?

A: Yes, both the SA24-120-9 and MD24-12 are RoHS compliant, meeting environmental and regulatory requirements for electronic component manufacturing and deployment.