Amphenol RF 112981 BNC Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 112981 is a BNC connector plug designed for 75-ohm coaxial cable applications. This male pin connector features crimp termination for both center contact and shield, with a bayonet lock fastening mechanism. The connector is rated for operation up to 4 GHz and is compatible with standard coaxial cable groups including Belden 1794A, 7855A, and Gepco VHD 7000. The part maintains Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical specifications are required for applications where the original part number is unavailable or when alternative cable group compatibility is needed.

Key Parameters

Parameter	Value
Connector Style	BNC
Connector Type	Plug, Male Pin
Impedance	75 Ohms
Contact Termination	Crimp
Shield Termination	Crimp
Mounting Type	Free Hanging (In-Line)
Fastening Type	Bayonet Lock
Frequency - Max	4 GHz
Voltage Rating	500 V
Center Contact Material	Brass
Body Material	Brass
Body Finish	Nickel
Center Contact Plating	Gold
Dielectric Material	Polytetrafluoroethylene (PTFE)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Affected

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 112981 are qualified based on the following critical parameters that determine functional equivalence:

Electrical Equivalence Criteria:

Connector style: BNC
Connector type: Plug, Male Pin
Impedance: 75 Ohms
Frequency maximum: 4 GHz
Voltage rating: 500 V

Mechanical Equivalence Criteria:

Contact termination: Crimp
Shield termination: Crimp
Mounting type: Free Hanging (In-Line)
Fastening type: Bayonet Lock
Center contact material: Brass
Body material: Brass
Dielectric material: PTFE

Compliance Criteria:

RoHS3 Compliant
REACH Affected

The substitute parts UPL220-009, UPL220-025, and UPL220-026 from Cinch Connectivity Solutions Trompeter meet all electrical and mechanical equivalence criteria. These parts differ in cable group compatibility, which determines their application suitability for specific coaxial cable types.

Parameter Comparison

Parameter	Amphenol RF 112981	Cinch UPL220-009	Cinch UPL220-025	Cinch UPL220-026
Manufacturer	Amphenol RF	Cinch Connectivity Solutions Trompeter	Cinch Connectivity Solutions Trompeter	Cinch Connectivity Solutions Trompeter
Connector Style	BNC	BNC	BNC	BNC
Connector Type	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin
Impedance	75 Ohms	75 Ohms	75 Ohms	75 Ohms
Contact Termination	Crimp	Crimp	Crimp	Crimp
Shield Termination	Crimp	Crimp	Crimp	Crimp
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Fastening Type	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock
Frequency - Max	4 GHz	4 GHz	4 GHz	4 GHz
Voltage Rating	500 V	500 V	500 V	500 V
Center Contact Material	Brass	Brass	Brass	Brass
Body Material	Brass	Brass	Brass	Brass
Body Finish	Nickel	Nickel	Nickel	Nickel
Center Contact Plating	Gold	Gold	Gold	Gold
Dielectric Material	PTFE	PTFE	PTFE	PTFE
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Affected	REACH Affected	REACH Affected	REACH Affected
Cable Group Compatibility	Belden 1794A, 7855A, Gepco VHD 7000	Belden 8218, YR23023, Essex 21-597	734A	735A
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All three substitute parts—UPL220-009, UPL220-025, and UPL220-026—are electrically and mechanically equivalent to the Amphenol RF 112981. Each substitute maintains ROHS3 compliance and REACH affected status, ensuring regulatory alignment with the original part.

Selection between substitute parts is determined by cable group compatibility requirements:

UPL220-009 is suitable for applications using Belden 8218, YR23023, or Essex 21-597 coaxial cables.

UPL220-025 is suitable for applications using 734A coaxial cable.

UPL220-026 is suitable for applications using 735A coaxial cable.

All substitute parts are Active status components with confirmed inventory availability. The Cinch Connectivity Solutions Trompeter UPL220 series connectors provide direct functional replacement when the original Amphenol RF 112981 is unavailable or when alternative cable group compatibility is required.

Frequently Asked Questions (FAQ)

Q: Can UPL220-009, UPL220-025, and UPL220-026 be used interchangeably with the Amphenol RF 112981?

A: These parts are electrically and mechanically equivalent. Interchangeability is determined by cable group compatibility. Select the substitute part that matches your specific coaxial cable type.

Q: What is the primary difference between the three substitute parts?

A: The three Cinch UPL220 variants are identical in electrical and mechanical specifications. The difference lies in cable group compatibility: UPL220-009 supports Belden 8218, YR23023, and Essex 21-597; UPL220-025 supports 734A; UPL220-026 supports 735A.

Q: Are the substitute parts RoHS and REACH compliant?

A: Yes. All substitute parts are ROHS3 compliant and REACH affected, matching the compliance status of the Amphenol RF 112981.

Q: What is the operating temperature range for the substitute parts?

A: The Cinch UPL220 series operates from -65°C to 165°C.

Q: How many components are included with each part?

A: The Amphenol RF 112981 includes 3 pieces (1 connector, 1 contact, 1 ferrule). The Cinch UPL220 series includes 2 pieces (1 connector, 1 contact).

Q: Are all parts available in bulk packaging?

A: The Amphenol RF 112981 is supplied in bag packaging. The Cinch UPL220 series is supplied in bulk packaging.

Q: What is the maximum frequency rating for these connectors?

A: All parts are rated for operation up to 4 GHz.

Q: What is the voltage rating for these connectors?

A: All parts are rated for 500 V.

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