Amphenol RF 031-2374-RFX TNC Connector Jack Equivalent & Substitute Parts

Part Overview

The Amphenol RF 031-2374-RFX is a TNC connector jack with female socket configuration, rated for 50 ohms impedance and designed for free hanging (in-line) solder termination. This component operates across a frequency range up to 11 GHz and is suitable for applications utilizing RG-58 series cables and compatible cable types. The part carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's active product line. Identifying equivalent substitute parts is necessary for ongoing maintenance, repair, and legacy system support where this connector type remains in service.

Substiute Parts

031-2374-RFX

Amphenol RFIn Stock: 1040031-2374-RFX Datasheet

Current PartRFQ

122122

Amphenol RFIn Stock: 1581122122 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 031-2374-RFX is determined by strict alignment with the following critical parameters:

• Connector style and type (TNC jack, female socket)
• Impedance rating (50 ohms)
• Mounting configuration (free hanging, in-line)
• Frequency capability (11 GHz maximum)
• Cable group compatibility (RG-58 series and equivalent)
• Fastening mechanism (threaded)
• Electrical ratings (500 V, 500 mating cycles)

The primary distinction between the main part and its substitute relates to contact termination method. The 031-2374-RFX employs solder termination for the center contact, while substitute parts may utilize alternative termination techniques such as crimp. Both termination methods achieve equivalent electrical performance and mechanical reliability when properly applied to compatible cable types within the specified cable group.

Parameter Comparison

Engineering Selection Recommendations

The Amphenol RF 122122 serves as a direct functional substitute for the 031-2374-RFX. Both components maintain identical electrical and mechanical specifications across all critical parameters including impedance, frequency response, voltage rating, and mating cycle performance. The 122122 is currently in active product status, whereas the 031-2374-RFX is designated "Not For New Designs," making the 122122 the preferred selection for new applications and ongoing procurement.

The primary operational difference is the contact termination method: solder versus crimp. This distinction does not affect electrical performance or mechanical compatibility when each termination type is applied according to its respective installation requirements. Both components comply with ROHS3 and REACH regulatory requirements and are suitable for applications operating within the specified temperature range of -65°C to 165°C.

Frequently Asked Questions (FAQ)

Q: Can the 122122 directly replace the 031-2374-RFX in existing assemblies?

A: Yes. Both connectors share identical mechanical form factors, mating interfaces, and electrical characteristics. The primary difference is the contact termination method (solder versus crimp). Substitution is valid provided the installation process accommodates the crimp termination technique of the 122122.

Q: What is the significance of the "Not For New Designs" status on the 031-2374-RFX?

A: This designation indicates the part has been superseded in Amphenol RF's active product portfolio. The 122122 represents the current active equivalent. For new designs and ongoing procurement, the 122122 is the recommended selection.

Q: Are the cable compatibility groups identical between these parts?

A: Yes. Both the 031-2374-RFX and 122122 are compatible with the same cable group: RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907.

Q: What is the difference between solder and crimp termination in this application?

A: Solder termination (031-2374-RFX) requires thermal joining of the center contact to the cable conductor. Crimp termination (122122) uses mechanical compression to establish the connection. Both methods achieve equivalent electrical performance and mechanical reliability when properly executed with compatible cable types.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the 031-2374-RFX and 122122 are ROHS3 compliant and REACH affected, meeting current environmental and hazardous substance regulations.

Q: What packaging differences exist between these parts?

A: The 031-2374-RFX is supplied in bulk packaging, while the 122122 is supplied in bag packaging. This distinction affects inventory management and handling but does not impact component performance or compatibility.