Amphenol RF 031-71035 BNC Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 031-71035 is a BNC connector plug with male pin configuration, designed for 75-ohm coaxial cable applications. This connector features crimp termination for both center contact and shield, operates across a frequency range up to 4 GHz, and is rated for 500 volts with 500 mating cycles. The part is currently classified as "Not For New Designs," making identification of active equivalent and substitute parts essential for ongoing system maintenance and component sourcing.

Substiute Parts

031-71035

Amphenol RFIn Stock: 909031-71035 Datasheet

Current PartRFQ

112975

Amphenol RFIn Stock: 881112975 Datasheet

DirectRFQ

112544

Amphenol RFIn Stock: 1043112544 Datasheet

Parametric EquivalentRFQ

SBC1506A

Winchester InterconnectIn Stock: 898SBC1506A Datasheet

DirectRFQ

SBC82259

Winchester InterconnectIn Stock: 804SBC82259 Datasheet

DirectRFQ

SBC89259

Winchester InterconnectIn Stock: 1176SBC89259 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Amphenol RF 031-71035 is determined by strict adherence to the following critical parameters:

Primary Substitution Criteria:

• Connector Style: BNC
• Connector Type: Plug, Male Pin
• Impedance: 75 Ohms
• Contact Termination: Crimp
• Shield Termination: Crimp
• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Bayonet Lock
• Voltage Rating: 500 V
• Mating Cycles: 500

Secondary Compatibility Parameters:

• Frequency - Max: 4 GHz (minimum requirement)
• Body Material: Brass
• Body Finish: Nickel
• Cable Group compatibility

Substitute parts are grouped into two categories:

Category 1: Direct Amphenol RF Equivalents (112975, 112544) These parts maintain identical electrical and mechanical specifications to the main part. The primary distinction is packaging format (Bulk versus Bag) and product status (Active versus Not For New Designs). Part 112975 is a direct equivalent with identical specifications. Part 112544 is a parametric equivalent with identical performance characteristics but uses Polyoxymethylene (POM) Acetal dielectric material instead of PTFE.

Category 2: Cross-Manufacturer Alternatives (Winchester Interconnect: SBC1506A, SBC82259, SBC89259) These parts satisfy the core electrical and mechanical requirements but operate at reduced maximum frequency (1 GHz versus 4 GHz) and include weatherproof ingress protection. These alternatives are suitable for applications where the lower frequency specification is acceptable and environmental protection is beneficial.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Full Specification Match):

Amphenol RF 112975 is the primary direct equivalent to the 031-71035. Both parts maintain identical electrical specifications, including 4 GHz maximum frequency, PTFE dielectric material, and 0.2 dB insertion loss. The 112975 is classified as Active product status, making it suitable for new procurement. The only distinction is packaging format (Bag versus Bulk). This part is recommended when full specification equivalence and Amphenol RF sourcing are required.

Amphenol RF 112544 is a parametric equivalent offering identical electrical performance with the exception of dielectric material (Polyoxymethylene Acetal instead of PTFE). This part is also classified as Active and maintains all critical performance parameters including 4 GHz frequency capability. Selection of this part is appropriate when dielectric material substitution is acceptable within system design constraints.

For Reduced Frequency Applications:

Winchester Interconnect SBC1506A, SBC82259, and SBC89259 are suitable alternatives when maximum operating frequency can be reduced to 1 GHz. All three parts maintain the core 75-ohm impedance, crimp termination, and 500-volt rating. These parts include weatherproof ingress protection, providing environmental benefits for outdoor or harsh environment applications. Selection from this group is appropriate for legacy system maintenance or applications where 1 GHz frequency specification is sufficient.

Compliance Considerations:

All substitute parts maintain RoHS compliance status. The Amphenol RF parts (112975, 112544) are ROHS3 compliant, matching the original part specification. Winchester Interconnect parts (SBC1506A, SBC82259, SBC89259) are RoHS compliant. All parts carry REACH Affected status and EAR99 ECCN classification, consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can Amphenol RF 112975 be used as a direct replacement for 031-71035?

A: Yes. The 112975 maintains identical electrical and mechanical specifications to the 031-71035, including 75-ohm impedance, 4 GHz maximum frequency, crimp termination, and 500-volt rating. The primary difference is packaging format (Bag versus Bulk) and product status (Active versus Not For New Designs). The 112975 is recommended for new procurement.

Q: What is the difference between Amphenol RF 112975 and 112544?

A: Both parts are parametric equivalents with identical electrical performance. The distinction is dielectric material: 112975 uses Polytetrafluoroethylene (PTFE), while 112544 uses Polyoxymethylene (POM) Acetal. Both support 4 GHz frequency operation and 500-volt rating. Selection depends on system design requirements for dielectric material properties.

Q: Are Winchester Interconnect parts suitable replacements for the 031-71035?

A: Winchester Interconnect parts (SBC1506A, SBC82259, SBC89259) satisfy core electrical requirements including 75-ohm impedance, crimp termination, and 500-volt rating. However, these parts operate at reduced maximum frequency (1 GHz versus 4 GHz). These alternatives are suitable for applications where 1 GHz frequency specification is acceptable and weatherproof ingress protection is beneficial.

Q: What cable groups are compatible with these BNC connectors?

A: The Amphenol RF 031-71035, 112975, and 112544 are compatible with RG-59 Plenum, Belden 1506, 82108, and 9104 cable groups. Winchester Interconnect SBC1506A is compatible with RG-59 Plenum and Belden 1506A. SBC82259 is compatible with Belden 82259. SBC89259 is compatible with Belden 89259. Verify cable group compatibility with specific application requirements.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Bulk versus Bag) does not affect electrical or mechanical performance. The distinction is for inventory and procurement purposes only. Both formats contain identical connector specifications and performance characteristics.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts maintain RoHS compliance. Amphenol RF parts (112975, 112544) are ROHS3 compliant, matching the original 031-71035. Winchester Interconnect parts (SBC1506A, SBC82259, SBC89259) are RoHS compliant. All parts are suitable for applications requiring RoHS compliance.

Q: What is the operating temperature range for these connectors?

A: The Amphenol RF 031-71035 operates from -65°C to 165°C. Operating temperature specifications for substitute parts 112975 and 112544 are not provided in available documentation. Winchester Interconnect parts (SBC1506A, SBC82259, SBC89259) do not specify operating temperature range. Verify temperature requirements with manufacturer documentation for specific applications.

Q: Can these connectors be used interchangeably in existing systems?

A: Mechanical and electrical interchangeability is confirmed for all listed substitute parts within their specified frequency and performance parameters. Physical dimensions, bayonet lock fastening, and crimp termination are consistent across all parts. Verify cable group compatibility and frequency requirements before substitution in operational systems.