Amphenol RF 112290 BNC Connector Equivalent & Substitute Parts

Part Overview

The Amphenol RF 112290 is a BNC Connector Jack, Female Socket rated at 50 Ohms with panel mount solder cup termination. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary for applications requiring continued supply, legacy system maintenance, or design flexibility where alternative qualified sources are acceptable.

Substiute Parts

112290

Amphenol RFIn Stock: 875112290 Datasheet

Current PartRFQ

31-203-RFX

Amphenol RFIn Stock: 222331-203-RFX Datasheet

DirectRFQ

RFB-1115-S

RF IndustriesIn Stock: 1249RFB-1115-S Datasheet

Parametric EquivalentRFQ

VB511

Cinch Connectivity SolutionsIn Stock: 1214VB511 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Amphenol RF 112290 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: BNC
• Connector Type: Jack, Female Socket
• Impedance: 50 Ohms
• Contact Termination: Solder Cup
• Shield Termination: Solder
• Mounting Type: Panel Mount
• Mounting Feature: Flange
• Fastening Type: Bayonet Lock
• Frequency - Max: 4 GHz
• Number of Ports: 1
• Voltage Rating: 500 V

All substitute parts listed meet these mandatory parameters. Variations in secondary characteristics such as center contact material, body finish, dielectric material, and operating temperature range do not preclude substitution when the mandatory parameters align.

Parameter Comparison

Engineering Selection Recommendations

Amphenol RF 31-203-RFX is the primary substitute for the Amphenol RF 112290. Both components are manufactured by Amphenol RF and maintain identical electrical and mechanical specifications across all critical parameters. The 31-203-RFX carries Active product status, ensuring continued availability and support. This part is supplied in Bulk packaging and demonstrates full RoHS compliance. The operating temperature range of -65°C to 165°C provides extended environmental capability compared to the main part.

RF Industries RFB-1115-S is a parametric equivalent from an alternative manufacturer. This part meets all mandatory substitution criteria and carries Active product status. It is supplied in Bag packaging. The body finish differs (Silver versus Nickel), and insertion loss and mating cycle specifications are not provided in the available data. RoHS3 compliance is confirmed.

Cinch Connectivity Solutions VB511 is a parametric equivalent from a third manufacturer. This part satisfies all mandatory substitution parameters and maintains Active product status. It is supplied in Bulk packaging with RoHS compliance. The dielectric material differs (Polyoxymethylene versus Polytetrafluoroethylene), and the operating temperature range is -55°C to 85°C, which is narrower than the main part. Insertion loss and mating cycle specifications are provided and match the main part.

All substitute parts carry identical ECCN (EAR99) and HTSUS (8536.69.4010) classifications, confirming regulatory equivalence for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 31-203-RFX directly replace the Amphenol RF 112290 in existing designs?

A: Yes. The 31-203-RFX meets all mandatory electrical and mechanical parameters required for substitution. Both parts are BNC female sockets rated at 50 Ohms with identical mounting, termination, and frequency specifications. The primary difference is product status: the 31-203-RFX is Active, while the 112290 is Not For New Designs.

Q: What is the difference between the Amphenol RF 31-203-RFX and RF Industries RFB-1115-S?

A: Both parts are parametric equivalents meeting all critical specifications. The primary differences are manufacturer, body finish (Nickel versus Silver), and packaging (Bulk versus Bag). The RFB-1115-S does not provide insertion loss or mating cycle data in the available specifications.

Q: Why does the Cinch VB511 use a different dielectric material (POM instead of PTFE)?

A: The dielectric material difference does not preclude substitution when all mandatory electrical parameters align. Both Polyoxymethylene (POM) and Polytetrafluoroethylene (PTFE) are suitable dielectric materials for 50 Ohm BNC connectors at frequencies up to 4 GHz. The VB511 maintains the same impedance, insertion loss, and voltage rating as the main part.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts carry either RoHS or ROHS3 compliance certification. The main part (112290) is ROHS3 compliant. The 31-203-RFX and VB511 are RoHS compliant. The RFB-1115-S is ROHS3 compliant. All parts meet regulatory requirements for RoHS-restricted substances.

Q: What is the operating temperature range for each part?

A: The Amphenol RF 112290 does not specify an operating temperature range. The 31-203-RFX operates from -65°C to 165°C. The RFB-1115-S does not specify an operating temperature range. The VB511 operates from -55°C to 85°C. For applications requiring extended temperature operation, the 31-203-RFX provides the widest range.

Q: Can these parts be used interchangeably in the same circuit board layout?

A: All substitute parts share identical mounting types (Panel Mount), mounting features (Flange), and fastening mechanisms (Bayonet Lock). Physical dimensions and footprints are equivalent across all parts, enabling direct substitution in existing panel mount applications.

Q: What is the significance of the Moisture Sensitivity Level (MSL) rating?

A: All parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These components do not require special handling, storage, or baking procedures prior to soldering, simplifying procurement and assembly processes.

Q: Are there any export or tariff considerations when substituting these parts?

A: All substitute parts carry identical ECCN (EAR99) and HTSUS (8536.69.4010) classifications as the main part, confirming equivalent regulatory treatment for export control and tariff purposes.