Amphenol RF 031-4327 BNC Connector Jack Equivalent & Substitute Parts

Part Overview

The Amphenol RF 031-4327 is a BNC connector jack with female socket configuration, designed for 50-ohm coaxial cable applications. This component features crimp or solder termination options and operates across a frequency range up to 4 GHz. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs requiring this connector type.

Substiute Parts

031-4327

Amphenol RFIn Stock: 1093031-4327 Datasheet

Current PartRFQ

5225396-1

TE Connectivity AMP ConnectorsIn Stock: 8565225396-1 Datasheet

DirectRFQ

2-331351-1

TE Connectivity Aerospace, Defense and MarineIn Stock: 10262-331351-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 031-4327 are identified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

Primary Matching Parameters:

• Connector style: BNC
• Connector type: Jack, female socket
• Impedance: 50 ohms
• Mounting type: Free hanging (in-line)
• Fastening type: Bayonet lock
• Frequency maximum: 4 GHz or greater
• Voltage rating: 500 V or greater
• Mating cycles: 500 or greater
• Insertion loss: 0.2 dB or less

Secondary Compatibility Parameters:

• Contact termination: Crimp (primary substitute requirement)
• Shield termination: Crimp
• Body material: Brass
• Center contact plating: Gold
• Dielectric material: PTFE
• Cable group compatibility: RG-58 series cables

Substitute parts identified below meet all primary matching parameters and maintain compatibility with the specified cable groups.

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity 5225396-1 (Direct Manufacturer Substitute)

This part satisfies all primary electrical and mechanical parameters required for direct substitution. Both the main part and this substitute are classified as obsolete, indicating similar market lifecycle status. The part maintains RoHS compliance and carries MSL rating 1 (unlimited moisture sensitivity level). The contact termination is crimp-only, eliminating the solder option present in the original part. Operating temperature range is reduced to -55°C ~ 85°C compared to the original -65°C ~ 165°C specification. Cable group compatibility includes RG-58, 58A, 58B, and 58C, providing coverage for standard coaxial cable applications.

TE Connectivity 2-331351-1 (Similar Manufacturer Substitute)

This part meets all primary electrical and mechanical parameters and is classified as discontinued at DiGi Electronics rather than fully obsolete. The part carries ROHS3 compliance, representing a more current regulatory standard than the original RoHS compliance. Operating temperature range matches the 5225396-1 substitute at -55°C ~ 85°C. Cable group compatibility is identical to the 5225396-1 part. MSL rating is listed as not applicable, indicating different moisture sensitivity classification. Both TE Connectivity substitutes provide equivalent electrical performance with identical insertion loss and mating cycle specifications.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 5225396-1 directly replace the Amphenol RF 031-4327 in existing designs?

A: The 5225396-1 meets all primary electrical and mechanical parameters including impedance, frequency response, voltage rating, and mating cycles. The primary difference is contact termination: the substitute offers crimp-only termination, while the original supports both crimp and solder. Applications requiring solder termination require design modification or selection of an alternative part.

Q: What is the significance of the operating temperature range difference between the main part and substitutes?

A: The Amphenol RF 031-4327 operates from -65°C to 165°C, while both TE Connectivity substitutes operate from -55°C to 85°C. Applications requiring operation outside the -55°C to 85°C range cannot use these substitutes without thermal performance verification.

Q: Are the TE Connectivity substitutes compatible with the same cable types as the original part?

A: Both TE Connectivity substitutes support RG-58, 58A, 58B, and 58C cables. The original part additionally lists compatibility with RG-141, Belden 89907, and 7806A cables. Applications using these additional cable types require confirmation of compatibility with the substitute parts.

Q: What is the difference between the two TE Connectivity substitute parts?

A: Both parts meet identical electrical specifications and cable compatibility requirements. The primary differences are product status (5225396-1 is obsolete; 2-331351-1 is discontinued at DiGi Electronics), RoHS certification level (RoHS versus ROHS3), and MSL rating classification (1 unlimited versus not applicable). Selection between these parts depends on regulatory requirements and availability status.

Q: Do the substitute parts include the same accessories as the original?

A: The TE Connectivity substitutes include 3 pieces: 1 connector, 1 contact, and 1 ferrule. The original part specification does not list included accessories. Verify accessory requirements for your application before final part selection.

Q: What compliance certifications apply to these connector parts?

A: The Amphenol RF 031-4327 is RoHS compliant with MSL rating 1 (unlimited). The TE Connectivity 5225396-1 is RoHS compliant with MSL rating 1 (unlimited) and REACH affected. The TE Connectivity 2-331351-1 is ROHS3 compliant with REACH affected status and MSL not applicable. All parts carry ECCN classification EAR99 and HTSUS code 8536.69.4010.