RFB-1116-I Equivalent & Substitute Parts

Part Overview

The RFB-1116-I is a BNC female socket connector manufactured by RF Industries, designed for 50-ohm coaxial applications. This panel-mount bulkhead connector features a solder cup termination and operates at frequencies up to 4 GHz. The part is currently active in production with 923 units in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from qualified manufacturers.

Substiute Parts

RFB-1116-I

RF IndustriesIn Stock: 1022RFB-1116-I Datasheet

Current PartRFQ

31-10-RFX

Amphenol RFIn Stock: 230231-10-RFX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RFB-1116-I is permissible with parts that maintain identical electrical and mechanical specifications across the following critical parameters:

Electrical Compatibility:

• Impedance: 50 Ohms (required match)
• Frequency maximum: 4 GHz or greater
• Voltage rating: 500 V or greater

Mechanical Compatibility:

• Connector style: BNC (required match)
• Connector type: Jack, Female Socket (required match)
• Contact termination: Solder Cup (required match)
• Shield termination: Solder (required match)
• Mounting type: Panel Mount (required match)
• Mounting feature: Bulkhead - Rear Side Nut (required match)
• Fastening type: Bayonet Lock (required match)

Regulatory Compliance:

• RoHS3 Compliant status (required match)

The substitute part 31-10-RFX from Amphenol RF satisfies all critical parameters and qualifies as a direct equivalent for the RFB-1116-I.

Parameter Comparison

Engineering Selection Recommendations

Both the RFB-1116-I and 31-10-RFX are active production parts with ROHS3 compliance and EAR99 export classification. Selection between these parts is based on availability and supply chain requirements rather than functional differences.

The RFB-1116-I (RF Industries) is suitable for applications requiring the RF Industries product line qualification or when RF Industries inventory is preferred.

The 31-10-RFX (Amphenol RF) is suitable for applications where Amphenol RF qualification is acceptable or when Amphenol RF supply chain availability is advantageous. This part includes integrated hardware (lockwasher and nut) and provides additional operational data including mating cycle rating (500 cycles) and insertion loss specification (0.2 dB).

Both parts meet all electrical and mechanical requirements for 50-ohm BNC panel-mount applications operating at frequencies up to 4 GHz with 500 V voltage rating.

Frequently Asked Questions (FAQ)

Q: Can the 31-10-RFX replace the RFB-1116-I in existing designs?

A: Yes. Both connectors share identical electrical specifications (50 Ohms, 4 GHz maximum frequency, 500 V rating), mechanical configuration (BNC female socket, panel mount bulkhead, solder cup termination), and regulatory compliance (ROHS3). Direct substitution is permissible without design modification.

Q: What are the differences between these two parts?

A: The primary differences are manufacturer (RF Industries versus Amphenol RF) and material composition of the center contact (Brass with Gold plating versus Phosphor Bronze with Silver plating). The 31-10-RFX includes packaged hardware (lockwasher and nut) and provides additional performance specifications (500 mating cycles, 0.2 dB insertion loss). Both parts operate identically within the specified electrical and mechanical parameters.

Q: Are there any frequency or impedance limitations when substituting?

A: No. Both parts are rated for identical frequency (4 GHz maximum) and impedance (50 Ohms). Substitution does not introduce frequency or impedance constraints.

Q: What is the significance of the included hardware in the 31-10-RFX?

A: The 31-10-RFX packaging includes one connector, one lockwasher, and one nut. The RFB-1116-I does not specify included hardware. Verify hardware availability for the RFB-1116-I separately if required for assembly.

Q: Are both parts suitable for high-frequency RF applications?

A: Yes. Both parts are rated to 4 GHz and are suitable for RF applications within this frequency range. The 50-ohm impedance specification ensures compatibility with standard RF transmission line systems.

Q: What is the voltage rating for these connectors?

A: Both the RFB-1116-I and 31-10-RFX are rated for 500 V. This rating applies to the electrical isolation capability of the connector.

Q: Are there any environmental or temperature operating specifications?

A: The RFB-1116-I does not specify operating temperature range. The 31-10-RFX specifies an operating temperature range of -65°C to 165°C. Both parts have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions.