Amphenol RF 031-70249 Equivalent & Substitute Parts

Part Overview

The Amphenol RF 031-70249 is a Mini BNC receptacle connector designed for 75-ohm coaxial applications. This female socket connector features through-hole solder termination and bayonet lock fastening, suitable for PCB-mounted RF installations. The part is currently active in production with 1060 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from multiple qualified manufacturers.

Substiute Parts

031-70249

Amphenol RFIn Stock: 1071031-70249 Datasheet

Current PartRFQ

1274571-1

TE Connectivity AMP ConnectorsIn Stock: 100751274571-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 031-70249 are qualified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

Mandatory Matching Parameters:

• Connector Style: BNC, Mini
• Connector Type: Receptacle, Female Socket
• Impedance: 75 Ohms
• Mounting Type: Through Hole
• Contact Termination: Solder
• Shield Termination: Solder
• Fastening Type: Bayonet Lock
• Number of Ports: 1
• Body Material: Brass
• Body Finish: Nickel
• Center Contact Plating: Gold
• Dielectric Material: Polytetrafluoroethylene (PTFE)
• Mating Cycles: 500

The substitute part TE Connectivity AMP Connectors 1274571-1 meets all mandatory parameters. Variations in center contact material (Phosphor Bronze versus Beryllium Copper) and the presence of additional specifications in the substitute part (operating temperature range, voltage rating, frequency maximum) do not disqualify substitution, as these represent enhanced or clarified specifications rather than incompatible deviations.

Parameter Comparison

Engineering Selection Recommendations

Both the Amphenol RF 031-70249 and TE Connectivity 1274571-1 are active production parts with full regulatory compliance. The Amphenol RF part carries ROHS3 compliance, while the TE Connectivity substitute carries RoHS compliance. Both parts are REACH Affected and carry MSL Level 1 (Unlimited) moisture sensitivity ratings, indicating equivalent handling and storage requirements.

Selection between these parts should be based on:

1. Availability: The TE Connectivity 1274571-1 has higher inventory (10011 units) compared to the Amphenol RF part (1060 units).
2. Regulatory Requirements: If ROHS3 compliance is specifically mandated, the Amphenol RF 031-70249 is the appropriate choice. If RoHS compliance is sufficient, either part qualifies.
3. Manufacturer Preference: Design specifications may require parts from a specific manufacturer or approved vendor list.
4. Electrical Performance: The Amphenol RF part specifies 0.1 dB insertion loss. The TE Connectivity part does not provide this specification in the available data.

Both parts meet the core electrical and mechanical requirements for 75-ohm Mini BNC through-hole solder-terminated applications with bayonet fastening.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1274571-1 be used as a direct replacement for the Amphenol RF 031-70249?

A: Yes, the TE Connectivity 1274571-1 qualifies as a substitute based on matching impedance (75 Ohms), connector style (BNC, Mini), mounting type (through-hole solder), fastening mechanism (bayonet lock), and core material specifications. Both parts are female socket receptacles with identical termination methods and dielectric materials.

Q: What is the difference between "Receptacle" and "Jack" terminology in the connector type field?

A: In this context, both terms refer to the female socket connector configuration. The terminology difference reflects manufacturer naming conventions rather than functional differences. Both parts accept a male plug connector.

Q: Does the difference in center contact material affect substitution eligibility?

A: The Amphenol RF part uses Beryllium Copper while the TE Connectivity part uses Phosphor Bronze for the center contact. Both materials are standard for RF connectors and provide equivalent electrical performance in 75-ohm applications. The gold plating on both parts provides the same contact surface characteristics.

Q: Are there any compliance differences between these parts?

A: The Amphenol RF 031-70249 is ROHS3 Compliant, while the TE Connectivity 1274571-1 is RoHS Compliant. ROHS3 represents a more recent regulatory standard. If your application requires ROHS3 compliance specifically, the Amphenol RF part is the correct choice. Both parts are REACH Affected with identical MSL ratings.

Q: What does the 0.1 dB insertion loss specification mean?

A: Insertion loss measures signal attenuation through the connector at RF frequencies. The Amphenol RF part specifies 0.1 dB insertion loss. The TE Connectivity part does not provide this specification in available documentation. For applications where insertion loss is a critical parameter, the Amphenol RF part provides documented performance data.

Q: Are the mating cycle ratings identical?

A: Yes, both parts are rated for 500 mating cycles, indicating equivalent mechanical durability and connector lifespan under normal use conditions.

Q: What is the significance of MSL Level 1 (Unlimited)?

A: MSL Level 1 indicates the component has unlimited shelf life and does not require special moisture-controlled storage or handling. Both parts carry this rating, meaning they can be stored and handled under standard warehouse conditions without moisture sensitivity concerns.