Amphenol RF 031-336 BNC Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 031-336 is a BNC connector plug designed for 50-ohm coaxial cable applications. This right-angle crimp connector features a male pin configuration with bayonet lock fastening and operates across a frequency range up to 4 GHz. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identification of equivalent and substitute parts is necessary for applications requiring continued support, legacy system maintenance, or component sourcing when the primary part becomes unavailable.

Substiute Parts

031-336

Amphenol RFIn Stock: 677031-336 Datasheet

Current PartRFQ

031-336-RFX

Amphenol RFIn Stock: 934031-336-RFX Datasheet

DirectRFQ

5225974-5

TE Connectivity AMP ConnectorsIn Stock: 9235225974-5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Amphenol RF 031-336 BNC connector plug is determined by strict alignment of the following core parameters:

Primary Substitution Criteria:

• Connector style (BNC)
• Connector type (Plug, Male Pin)
• Impedance (50 Ohms)
• Mounting type (Free Hanging, Right Angle)
• Contact termination method (Crimp)
• Shield termination method (Crimp)
• Fastening type (Bayonet Lock)
• Maximum frequency (4 GHz minimum)
• Voltage rating (500 V minimum)
• Mating cycles (500 minimum)
• Insertion loss (0.2 dB maximum)

Secondary Compatibility Factors:

• Cable group compatibility
• Operating temperature range
• Body material and finish specifications
• Center contact material and plating
• Dielectric material composition
• Regulatory compliance status (RoHS, REACH)

Two substitute parts meet the primary substitution criteria for the 031-336: the Amphenol RF 031-336-RFX and the TE Connectivity AMP Connectors 5225974-5. Both parts maintain identical electrical specifications, mechanical configuration, and performance characteristics within the defined parameters.

Parameter Comparison

Engineering Selection Recommendations

Amphenol RF 031-336-RFX

The 031-336-RFX is the primary recommended substitute for the 031-336. This part maintains active product status with the manufacturer, ensuring continued availability and support. Both parts are manufactured by Amphenol RF and share identical electrical and mechanical specifications. The 031-336-RFX carries ROHS3 compliance and REACH affected status, matching the regulatory profile of the original part. The primary material difference is the dielectric composition (POM Acetal versus PTFE), which does not affect the core electrical performance within the specified parameters. Operating temperature range, voltage rating, frequency response, and impedance characteristics are identical. This part is suitable for direct substitution in applications currently using the 031-336.

TE Connectivity AMP Connectors 5225974-5

The 5225974-5 meets all primary substitution criteria but carries an "Obsolete" product status designation. This part is no longer actively manufactured or supported by TE Connectivity. While electrical and mechanical specifications align with the 031-336 across all critical parameters, the operating temperature range is narrower (-55°C ~ 85°C versus -65°C ~ 165°C). This temperature limitation may restrict applicability in systems requiring the full thermal operating envelope of the original part. The 5225974-5 is suitable for substitution only in applications where the reduced temperature range does not present a constraint. Cable group compatibility is broader than the 031-336, supporting RG-59, 59A, 59B, 62, 62A, and 62B variants.

Selection Priority

For new component sourcing and ongoing system support, the Amphenol RF 031-336-RFX is the preferred substitute due to active product status and manufacturer support. The TE Connectivity 5225974-5 should be considered only when the 031-336-RFX is unavailable and application thermal requirements fall within the -55°C ~ 85°C operating range.

Frequently Asked Questions (FAQ)

Q: Can the 031-336-RFX be used as a direct replacement for the 031-336?

A: Yes. The 031-336-RFX is a direct substitute for the 031-336. Both parts share identical connector style, impedance, mounting configuration, termination methods, frequency response, voltage rating, and mating cycle specifications. The parts are mechanically and electrically interchangeable within the defined operating parameters.

Q: What is the difference between the dielectric materials used in the 031-336 and 031-336-RFX?

A: The 031-336 uses polytetrafluoroethylene (PTFE) as the dielectric material, while the 031-336-RFX uses polyoxymethylene (POM) acetal. Both materials meet the electrical performance requirements specified for 50-ohm BNC connectors at frequencies up to 4 GHz. The material difference does not affect insertion loss, impedance stability, or voltage rating within the operating parameters.

Q: Is the 5225974-5 suitable for all applications using the 031-336?

A: The 5225974-5 is suitable for applications where the operating temperature range of -55°C ~ 85°C is acceptable. The original 031-336 operates across -65°C ~ 165°C. If your application requires operation outside the -55°C ~ 85°C range, the 5225974-5 is not appropriate. All other electrical and mechanical specifications are compatible.

Q: What cable types are compatible with each substitute part?

A: The 031-336 and 031-336-RFX are compatible with RG-59, Belden 1426A, 1501A, 8281, and 9100 cable types. The 5225974-5 supports a broader cable group including RG-59, 59A, 59B, 62, 62A, and 62B variants. Verify cable specifications against your system requirements before final selection.

Q: Why is the 031-336 marked as "Not For New Designs"?

A: The "Not For New Designs" designation indicates that Amphenol RF has superseded this part in their product line. The 031-336-RFX is the active replacement. This designation does not affect the performance or reliability of existing 031-336 components in current applications; it indicates that new product development should utilize the 031-336-RFX instead.

Q: What is the regulatory compliance status of these parts?

A: The 031-336 and 031-336-RFX are both ROHS3 compliant and REACH affected. The 5225974-5 is RoHS compliant and REACH affected. All three parts carry the same ECCN (EAR99) and HTSUS (8536.69.4010) classifications. Verify compliance requirements for your specific application and jurisdiction.

Q: Are there inventory considerations when selecting a substitute?

A: Current inventory levels are 642 pieces for the 031-336, 843 pieces for the 031-336-RFX, and 910 pieces for the 5225974-5. Inventory availability may change over time. For applications requiring long-term component sourcing, the 031-336-RFX is recommended due to its active product status and manufacturer support, which typically ensures more stable long-term availability compared to obsolete parts.

Q: What is the moisture sensitivity level (MSL) for these connectors?

A: All three parts carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or use. These connectors do not require special moisture control measures during storage or deployment.