RN-SMA-RA RF Antenna Equivalent & Substitute Parts

Part Overview

The RN-SMA-RA is a 2.4GHz whip, right-angle RF antenna manufactured by Microchip Technology with an SMA male connector mount. This component operates across the 2.2GHz to 2.7GHz frequency range with -1.2dBi gain and is designed for UHF applications. The product is currently obsolete, making identification of suitable substitute components necessary for ongoing system support and new design implementations.

Substiute Parts

RN-SMA-RA

Microchip TechnologyIn Stock: 910RN-SMA-RA Datasheet

Current PartRFQ

RN-SMA-4

Microchip TechnologyIn Stock: 2438RN-SMA-4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN-SMA-RA is determined by the following critical parameters:

• Frequency compatibility: Center frequency of 2.4GHz with overlapping operational bandwidth
• Connector type: SMA Male termination for direct mechanical and electrical compatibility
• Mounting interface: Connector mount configuration
• Electrical performance: VSWR and gain characteristics within acceptable operating parameters
• Compliance standards: ROHS3 compliance and REACH unaffected status

The RN-SMA-4 qualifies as a substitute based on matching frequency band (2.4GHz center), identical SMA male termination, connector mount configuration, and equivalent VSWR performance. Both components maintain ROHS3 compliance and REACH unaffected status.

Parameter Comparison

Engineering Selection Recommendations

The RN-SMA-4 is an active product from Microchip Technology and serves as the primary substitute for the obsolete RN-SMA-RA. Both components maintain identical ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The RN-SMA-4 operates within a narrower frequency range (2.39GHz ~ 2.51GHz) compared to the RN-SMA-RA (2.2GHz ~ 2.7GHz), with equivalent VSWR performance at 1.9. Physical form factor differs: the RN-SMA-RA features a right-angle configuration at 2.106" height, while the RN-SMA-4 employs a tilt configuration at 4.660" height. Gain characteristics differ, with the RN-SMA-4 providing 2.2dBi versus the RN-SMA-RA at -1.2dBi. Component selection should account for mechanical space constraints and gain requirements specific to the application.

Frequently Asked Questions (FAQ)

Q: Can the RN-SMA-4 directly replace the RN-SMA-RA in existing designs?

A: Direct mechanical replacement is possible due to identical SMA male connectors and connector mount configuration. However, physical dimensions differ significantly: the RN-SMA-RA measures 2.106" in height with right-angle orientation, while the RN-SMA-4 measures 4.660" in height with tilt orientation. Enclosure and mounting space must accommodate the larger form factor. Electrical performance also differs, with gain values of -1.2dBi and 2.2dBi respectively.

Q: What are the frequency compatibility considerations?

A: The RN-SMA-RA operates across 2.2GHz to 2.7GHz, while the RN-SMA-4 operates across 2.39GHz to 2.51GHz. Both center at 2.4GHz. Applications requiring operation below 2.39GHz or above 2.51GHz may not be suitable for the RN-SMA-4 substitute.

Q: Are compliance certifications equivalent between these components?

A: Both the RN-SMA-RA and RN-SMA-4 maintain ROHS3 compliance and REACH unaffected status, ensuring equivalent regulatory standing for applications requiring these certifications.

Q: What packaging differences exist?

A: The RN-SMA-RA is supplied in standard packaging, while the RN-SMA-4 is supplied in bag packaging. This distinction affects handling and storage procedures but does not impact electrical or mechanical performance.