Amphenol RF 112432 BNC Connector Equivalent & Substitute Parts

Part Overview

The Amphenol RF 112432 is a BNC connector jack with female socket configuration, rated for 75 ohms impedance, designed for panel mount applications with 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 This component is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line.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 legacy system maintenance, repair operations, and applications where 75 ohm BNC connectivity is required.

Substiute Parts

112432

Amphenol RFIn Stock: 1145112432 Datasheet

Current PartRFQ

031-10-75RFXG2

Amphenol RFIn Stock: 1191031-10-75RFXG2 Datasheet

DirectRFQ

112431

Amphenol RFIn Stock: 1793112431 Datasheet

Parametric EquivalentRFQ

UBJ27

Cinch Connectivity Solutions TrompeterIn Stock: 830UBJ27 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 112432 are classified into two categories based on electrical and mechanical parameter alignment:

Direct Electrical Equivalents (75 Ohm Impedance Match): Parts that maintain identical impedance specification (75 ohms), connector type (BNC jack, female socket), termination method (solder cup), mounting configuration (panel mount bulkhead), and frequency rating (4 GHz maximum). These parts are mechanically and electrically interchangeable within the specified parameter constraints.

Parametric Equivalent (50 Ohm Alternative): The Amphenol RF 112431 shares all mechanical and physical characteristics with the main part but operates at 50 ohms impedance. This part is listed as a parametric equivalent due to identical connector style, mounting type, termination method, and frequency rating, with the critical difference being impedance specification.

Key parameters determining substitution eligibility:

• Connector style (BNC)
• Connector type (Jack, female socket)
• Contact termination (Solder cup)
• Mounting type (Panel mount, bulkhead rear side nut)
• Fastening type (Bayonet lock)
• Frequency maximum (4 GHz)
• Voltage rating (500 V)
• Body material and finish (Brass, nickel)
• Center contact plating (Gold)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Electrical and Mechanical Compatibility):

The Amphenol RF 031-10-75RFXG2 is the primary substitute for the 112432. Both parts maintain 75 ohm impedance specification and are electrically equivalent. The 031-10-75RFXG2 carries Active product status, ensuring continued availability and manufacturing support. This part is ROHS3 compliant and REACH affected, matching the regulatory profile of the main part. The primary distinction is packaging format (Bulk versus Bag) and dielectric material composition (Polyamide/Nylon versus PTFE), which do not affect electrical performance within the specified parameter range.

The Cinch Connectivity Solutions Trompeter UBJ27 provides an alternative 75 ohm BNC jack connector from a different manufacturer. This part maintains all critical mechanical and electrical parameters, including impedance, connector type, termination method, and mounting configuration. The UBJ27 is Active status with ROHS3 compliance and operates across the temperature range of -65°C to 165°C. Mating cycle specification is not provided for this part.

For Parametric Substitution (Impedance Variation):

The Amphenol RF 112431 is a parametric equivalent operating at 50 ohms impedance instead of 75 ohms. This part shares identical mechanical construction, mounting type, termination method, and frequency rating. Selection of the 112431 is appropriate only when system impedance requirements permit 50 ohm operation. The 112431 is Active status with ROHS3 compliance and higher inventory availability (1745 pcs) compared to the main part.

Compliance and Regulatory Considerations:

All substitute parts maintain ROHS3 compliance and REACH affected status, ensuring regulatory alignment with the main part. MSL rating of 1 (Unlimited) across all parts indicates no moisture sensitivity constraints during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 031-10-75RFXG2 be used as a direct replacement for the 112432?

A: Yes. The 031-10-75RFXG2 maintains identical impedance (75 ohms), connector type (BNC jack, female socket), termination method (solder cup), mounting configuration (panel mount bulkhead), and frequency rating (4 GHz). Both parts are ROHS3 compliant with 500 V voltage rating and 500 mating cycles. The primary difference is packaging format and dielectric material, which do not affect electrical interchangeability.

Q: What is the difference between the 112432 and the 112431?

A: The 112431 operates at 50 ohms impedance, while the 112432 operates at 75 ohms. All other mechanical and electrical parameters are identical. Selection between these parts depends on system impedance requirements. The 112431 is Active status with higher inventory availability.

Q: Is the Cinch UBJ27 compatible with the 112432?

A: Yes. The UBJ27 maintains 75 ohm impedance, BNC jack connector type, solder cup termination, panel mount bulkhead configuration, and 4 GHz frequency rating. The UBJ27 is from a different manufacturer (Cinch Connectivity Solutions Trompeter) but meets all specified electrical and mechanical parameters. Operating temperature range is specified as -65°C to 165°C.

Q: Why is the 112432 marked "Not For New Designs"?

A: This designation indicates the part has been superseded in the manufacturer's product line. The Amphenol RF 031-10-75RFXG2 is the recommended active alternative for new applications requiring 75 ohm BNC jack connectors with identical specifications.

Q: What packaging formats are available for these substitute parts?

A: The 112432 and 112431 are supplied in Bag packaging. The 031-10-75RFXG2 and UBJ27 are supplied in Bulk packaging. Packaging format does not affect electrical or mechanical performance.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 112432, 031-10-75RFXG2, 112431, and UBJ27 are all ROHS3 compliant with MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints.