Amphenol RF 031-5705 RP-BNC Connector Equivalent & Substitute Parts

Part Overview

The Amphenol RF 031-5705 is an RP-BNC connector plug with female socket configuration, designed for 50-ohm coaxial cable applications. This component features crimp or solder contact termination and operates across a frequency range up to 4 GHz, making it suitable for RF and microwave signal transmission applications.

The 031-5705 carries a "Not For New Designs" product status, indicating that this part number is no longer recommended for new circuit designs or product development. Organizations currently using this connector in active applications require equivalent alternatives that maintain electrical and mechanical compatibility while offering current product support and availability.

Substiute Parts

031-5705

Amphenol RFIn Stock: 918031-5705 Datasheet

Current PartRFQ

112116RP

Amphenol RFIn Stock: 1091112116RP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 031-5705 is determined by strict alignment across the following critical parameters:

Electrical Compatibility Requirements:

• Connector style must be RP-BNC
• Impedance must be 50 ohms
• Maximum frequency must be 4 GHz or greater
• Voltage rating must be 500 V or greater
• Insertion loss must not exceed 0.2 dB

Mechanical Compatibility Requirements:

• Connector type must be Plug with Female Socket configuration
• Mounting type must be Free Hanging (In-Line)
• Fastening type must be Bayonet Lock
• Cable group compatibility must include RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907

Material and Environmental Requirements:

• Operating temperature range must span -65°C to 165°C
• Body material must be Brass with Nickel finish
• Center contact material must be Phosphor Bronze with Gold plating
• Dielectric material must be Polytetrafluoroethylene (PTFE)
• RoHS3 compliance required

Regulatory and Compliance Requirements:

• REACH Affected status
• ECCN classification EAR99
• HTSUS code 8536.69.4010

The substitute part 112116RP meets all electrical, mechanical, material, and regulatory requirements for direct substitution with the 031-5705.

Parameter Comparison

Engineering Selection Recommendations

The Amphenol RF 112116RP serves as the direct substitute for the 031-5705 in all applications requiring RP-BNC 50-ohm coaxial connectors. Both parts maintain identical electrical performance, mechanical compatibility, and material specifications across all critical parameters.

The primary distinction between these parts is product lifecycle status. The 031-5705 is designated "Not For New Designs," while the 112116RP carries "Active" status. This classification difference reflects current manufacturing support and long-term availability assurance.

From a compliance perspective, both parts satisfy ROHS3, REACH, and export control requirements under ECCN EAR99. Both maintain identical moisture sensitivity levels and regulatory certifications.

The 112116RP differs from the 031-5705 in contact termination options. The 031-5705 supports both crimp and solder termination methods, while the 112116RP supports crimp termination only. Organizations currently employing solder termination methods with the 031-5705 must transition to crimp termination when adopting the 112116RP.

Both connectors include identical package contents with the exception of heat shrink tubing. The 031-5705 includes four pieces (connector, contact, ferrule, heat shrink), while the 112116RP includes three pieces (connector, contact, ferrule). This packaging difference does not affect electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the 112116RP directly replace the 031-5705 in existing designs?

A: The 112116RP is electrically and mechanically compatible with the 031-5705 across all critical parameters including impedance, frequency response, operating temperature, voltage rating, and insertion loss. Direct substitution is supported for applications using crimp termination. Applications currently employing solder termination require process modification to accommodate the 112116RP's crimp-only termination capability.

Q: What is the significance of the "Not For New Designs" status on the 031-5705?

A: This designation indicates that the 031-5705 is no longer recommended for incorporation into new product designs or development projects. The part remains available for existing applications and legacy system support. The 112116RP, carrying "Active" status, is the recommended choice for all new design initiatives.

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

A: Both the 031-5705 and 112116RP support identical cable groups: RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907. Cable compatibility is fully maintained across the substitution.

Q: What is the difference in package contents between these connectors?

A: The 031-5705 includes four pieces per connector: the connector body, contact, ferrule, and heat shrink tubing. The 112116RP includes three pieces per connector: the connector body, contact, and ferrule. The heat shrink tubing is not included with the 112116RP. This packaging difference does not affect connector performance or electrical characteristics.

Q: Are both parts compliant with current environmental and export regulations?

A: Both the 031-5705 and 112116RP are ROHS3 compliant, REACH affected, and classified under ECCN EAR99. Both maintain identical regulatory certifications and export control classifications.

Q: What termination methods are supported by each part?

A: The 031-5705 supports both crimp and solder contact termination methods. The 112116RP supports crimp termination only. Organizations must confirm their termination process compatibility before implementing the 112116RP as a substitute.

Q: Do these connectors maintain the same operating temperature range?

A: Both the 031-5705 and 112116RP operate across the identical temperature range of -65°C to 165°C. Temperature performance is fully maintained across the substitution.

Q: Is the insertion loss specification identical for both parts?

A: Both connectors maintain an insertion loss specification of 0.2 dB, ensuring identical RF performance characteristics in signal transmission applications.