Amphenol RF 031-5679 RP-TNC Coaxial Connector Equivalent & Substitute Parts

Part Overview

The Amphenol RF 031-5679 is an RP-TNC connector plug with female socket configuration, designed for 50 Ohm RF applications. This straight, free-hanging (in-line) connector features crimp termination for both center contact and shield, supporting frequencies up to 11 GHz. The part is actively manufactured and stocked, with ROHS3 compliance and REACH compliance status. Substitute parts are identified when equivalent electrical and mechanical parameters are required for component procurement, inventory management, or supply chain continuity.

Substiute Parts

031-5679

Amphenol RFIn Stock: 1201031-5679 Datasheet

Current PartRFQ

122393RP

Amphenol RFIn Stock: 1134122393RP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 031-5679 are identified based on strict equivalence of the following critical parameters:

Electrical Equivalence Criteria:

• Connector style (RP-TNC)
• Connector type (Plug, Female Socket)
• Impedance (50 Ohms)
• Frequency maximum rating (11 GHz)
• Insertion loss (0.18 dB)
• Voltage rating (500 V)
• Operating temperature range (-65°C to 165°C)

Mechanical Equivalence Criteria:

• Contact termination method (Crimp)
• Shield termination method (Crimp)
• Mounting type (Free Hanging/In-Line)
• Fastening type (Threaded)
• Body material (Brass)
• Body finish (Nickel)
• Center contact plating (Gold)
• Dielectric material (PTFE)

Compliance Equivalence Criteria:

• RoHS3 compliance
• REACH compliance status
• Moisture sensitivity level (MSL 1)

The substitute part 122393RP meets all electrical, mechanical, and compliance requirements for direct substitution. Minor variations in included components (3 pcs vs. 4 pcs) and center contact material (Phosphor Bronze vs. Beryllium Copper) do not affect functional equivalence within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

Both the Amphenol RF 031-5679 and 122393RP are active, production-status components with full ROHS3 and REACH compliance. Selection between these parts is based on availability and supply chain requirements rather than functional differences.

031-5679 Selection Criteria:

• Higher inventory availability (1166 units)
• Beryllium Copper center contact material
• Includes 4-piece component set (connector, contact, ferrule, heat shrink)

122393RP Selection Criteria:

• Alternative inventory source (1095 units)
• Phosphor Bronze center contact material
• Includes 3-piece component set (connector, contact, ferrule)

Both parts deliver identical electrical performance across all specified parameters: 50 Ohm impedance, 11 GHz frequency capability, 0.18 dB insertion loss, 500 V voltage rating, and -65°C to 165°C operating temperature range. Both support 500 mating cycles and feature identical body construction (brass with nickel finish), dielectric material (PTFE), and gold-plated center contacts.

Frequently Asked Questions (FAQ)

Q: Can 122393RP be used as a direct replacement for 031-5679?

A: Yes. Both parts are RP-TNC plug connectors with female sockets, 50 Ohm impedance, crimp termination, and identical electrical specifications. They share the same frequency rating (11 GHz), insertion loss (0.18 dB), voltage rating (500 V), operating temperature range (-65°C to 165°C), and mating cycle rating (500). Both are ROHS3 and REACH compliant.

Q: What is the difference in center contact material between these parts?

A: The 031-5679 uses Beryllium Copper, while the 122393RP uses Phosphor Bronze. Both materials provide equivalent electrical performance within the specified parameters and do not affect functional compatibility in 50 Ohm RF applications.

Q: Do the included component sets differ between these parts?

A: Yes. The 031-5679 includes 4 pieces (connector, contact, ferrule, heat shrink), while the 122393RP includes 3 pieces (connector, contact, ferrule). The heat shrink component is not included with 122393RP. Verify component requirements for your assembly process.

Q: Are both parts suitable for the same cable types?

A: Yes. Both parts are compatible with Belden 9913, 9914, and LMR-400 cable groups as specified in the product documentation.

Q: What is the inventory status for each part?

A: The 031-5679 has 1166 units in stock, while the 122393RP has 1095 units in stock. Both are listed as new original inventory.

Q: Do these parts have the same compliance certifications?

A: Yes. Both parts are ROHS3 compliant, REACH affected, classified as EAR99 for export control, and carry the same HTSUS code (8536.69.4010). Both have MSL rating of 1 (unlimited moisture sensitivity).

Q: What is the maximum frequency rating for these connectors?

A: Both parts support frequencies up to 11 GHz with an insertion loss of 0.18 dB.

Q: Are these parts suitable for high-temperature applications?

A: Yes. Both parts operate across the temperature range of -65°C to 165°C, supporting both cryogenic and elevated-temperature RF applications.