Amphenol RF 112953 BNC Connector Plug 75 Ohm Crimp – Equivalent & Substitute Parts

Part Overview

The Amphenol RF 112953 is a BNC connector plug with male pin configuration, designed for 75 ohm coaxial cable applications. This component operates at frequencies up to 4 GHz and features crimp termination for the center contact and shield. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Equivalent and substitute parts are necessary for applications requiring active product status, alternative termination methods, or compatibility with specific cable groups.

Substiute Parts

112953

Amphenol RFIn Stock: 1276112953 Datasheet

Current PartRFQ

112956

Amphenol RFIn Stock: 1845112956 Datasheet

DirectRFQ

112507

Amphenol RFIn Stock: 1557112507 Datasheet

Parametric EquivalentRFQ

413589-6

TE Connectivity AMP ConnectorsIn Stock: 843413589-6 Datasheet

SimilarRFQ

5413589-6

TE Connectivity AMP ConnectorsIn Stock: 8895413589-6 Datasheet

SimilarRFQ

UPL220-009

Cinch Connectivity Solutions TrompeterIn Stock: 1247UPL220-009 Datasheet

SimilarRFQ

UPL220-020

Cinch Connectivity Solutions TrompeterIn Stock: 1137UPL220-020 Datasheet

SimilarRFQ

UPL220-025

Cinch Connectivity Solutions TrompeterIn Stock: 1015UPL220-025 Datasheet

SimilarRFQ

UPL220-026

Cinch Connectivity Solutions TrompeterIn Stock: 1249UPL220-026 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Amphenol RF 112953 is determined by strict adherence to the following core parameters:

Critical Parameters (Must Match):

• Connector Style: BNC
• Connector Type: Plug, Male Pin
• Impedance: 75 Ohms
• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Bayonet Lock
• Number of Ports: 1
• Voltage Rating: 500 V

Compatible Variation Parameters:

• Contact Termination: Crimp or Crimp/Solder hybrid methods
• Dielectric Material: PTFE or POM Acetal (both acceptable for 75 ohm applications)
• Frequency – Max: 2 GHz or higher (4 GHz preferred for full compatibility)
• Body Material: Brass or Zinc (both acceptable with nickel finish)
• Operating Temperature Range: Extended ranges acceptable for new designs
• Product Status: Active products preferred over obsolete classifications

Cable Group Compatibility: Substitutes must support RG-59 or equivalent cable groups. Specific cable group variations (Belden series, Essex, YR23023) determine which substitute is appropriate for the intended application.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute – Amphenol RF 112956: Part 112956 is the direct successor to 112953 within the Amphenol RF product line. It maintains identical electrical and mechanical specifications while offering active product status. The key distinction is the contact termination method: 112956 supports both crimp and solder termination, providing greater assembly flexibility. Both parts are ROHS3 compliant and REACH affected. Selection of 112956 is appropriate for applications requiring continued support from the original manufacturer and compatibility with existing assembly processes.

Parametric Equivalent – Amphenol RF 112507: Part 112507 is functionally equivalent to 112953 with crimp-only termination. The dielectric material differs (POM Acetal versus PTFE), but both materials are acceptable for 75 ohm BNC applications. Part 112507 carries active product status and ROHS3 compliance. This substitute is suitable when POM Acetal dielectric properties are acceptable for the application environment.

Cross-Manufacturer Alternatives – TE Connectivity 413589-6 and 5413589-6: Both TE Connectivity parts meet the core electrical and mechanical requirements. Part 413589-6 features zinc body material and polyethylene dielectric, with RoHS non-compliance and 2 GHz maximum frequency. Part 5413589-6 uses brass body material with RoHS compliance and identical 2 GHz frequency rating. The reduced frequency specification (2 GHz versus 4 GHz) limits these options to applications operating below 2 GHz. Selection requires confirmation that application frequency requirements do not exceed 2 GHz.

Cinch Connectivity Solutions Trompeter UPL220 Series – UPL220-009, UPL220-020, UPL220-026: All three Cinch parts maintain 4 GHz frequency capability and PTFE dielectric material. They differ in cable group compatibility: UPL220-009 supports Belden 8218, YR23023, and Essex 21-597; UPL220-020 supports Belden 9248; UPL220-026 supports 735A cable. All three carry active product status and ROHS3 compliance. Selection among these variants depends on the specific cable group used in the application. Operating temperature range extends to -65°C ~ 165°C, providing superior thermal performance compared to the main part.

Compliance Considerations: For applications requiring RoHS compliance, parts 112956, 112507, 5413589-6, UPL220-009, UPL220-020, and UPL220-026 are suitable. Part 413589-6 is RoHS non-compliant and should not be selected for regulated applications. All recommended substitutes maintain REACH affected status consistent with the main part, except TE Connectivity parts with vendor undefined REACH status.

Frequently Asked Questions (FAQ)

Q: Can Amphenol RF 112956 directly replace 112953 in existing assemblies?

A: Yes. Part 112956 maintains identical electrical specifications (75 ohms, 4 GHz, 500 V), mechanical configuration (BNC plug, bayonet lock, free hanging), and material composition (brass body, nickel finish, gold-plated brass center contact, PTFE dielectric). The primary difference is termination flexibility: 112956 accepts both crimp and solder methods, while 112953 is crimp-only. Existing crimp tooling and processes remain compatible.

Q: What is the significance of the dielectric material difference between 112953 (PTFE) and 112507 (POM Acetal)?

A: Both PTFE and POM Acetal are acceptable dielectric materials for 75 ohm BNC connectors. PTFE offers superior high-frequency performance and thermal stability. POM Acetal provides adequate performance for the specified 4 GHz frequency range and may offer cost advantages. Selection depends on application requirements for temperature stability and frequency response. Both materials are suitable for the stated electrical specifications.

Q: Why do TE Connectivity parts 413589-6 and 5413589-6 have a 2 GHz frequency limit instead of 4 GHz?

A: The frequency limitation is determined by the dielectric material and connector design. Part 413589-6 uses polyethylene (PE) dielectric, while 5413589-6 does not specify dielectric material. These design choices result in 2 GHz maximum frequency. These parts are suitable only for applications operating at or below 2 GHz. For applications requiring 4 GHz capability, select Amphenol RF 112956, 112507, or Cinch UPL220 series parts.

Q: How do I select the correct Cinch UPL220 variant?

A: Selection is based on cable group compatibility. Identify the coaxial cable type used in your application: UPL220-009 for Belden 8218, YR23023, or Essex 21-597; UPL220-020 for Belden 9248; UPL220-026 for 735A cable. All three variants maintain identical electrical performance (75 ohms, 4 GHz, 500 V) and mechanical configuration. Cable group compatibility ensures proper impedance matching and connector fit.

Q: Are all substitute parts ROHS3 compliant?

A: No. Part 413589-6 is RoHS non-compliant. All other recommended substitutes (112956, 112507, UPL220-009, UPL220-020, UPL220-026) are ROHS3 compliant. Part 5413589-6 is RoHS compliant (not ROHS3). For applications subject to RoHS regulations, confirm compliance status before selection.

Q: What is the difference between "Crimp" and "Crimp or Solder" termination?

A: "Crimp" termination (112953, 112507) requires mechanical crimping tools to attach the connector to the cable. "Crimp or Solder" termination (112956) allows either crimping or soldering methods. The choice depends on available assembly equipment and process requirements. Crimp-only parts are lighter and faster to assemble with proper tooling. Crimp/solder hybrid parts offer assembly flexibility when multiple termination methods are in use.

Q: Can I use a substitute part with a different body material (zinc versus brass)?

A: Yes, with confirmation of application requirements. Part 413589-6 uses zinc body material with nickel finish, while 112953 and most substitutes use brass body material. Both materials with nickel finish provide adequate corrosion resistance for standard applications. Zinc body parts may be lighter and lower cost. For applications requiring superior corrosion resistance or specific mechanical properties, brass body parts (112956, 112507, UPL220 series) are preferred.

Q: What does "Not For New Designs" mean for part 112953?

A: This designation indicates that Amphenol RF has superseded this part in their product line. While 112953 remains available in inventory (1243 pcs), the manufacturer recommends using active alternatives for new product development. For new designs, select from active parts: 112956, 112507, or cross-manufacturer alternatives. Existing products using 112953 may continue with current inventory or transition to 112956.

Q: Are the mating cycle ratings comparable across all substitutes?

A: Amphenol RF parts (112953, 112956, 112507) specify 500 mating cycles. Cinch UPL220 series parts do not specify mating cycle ratings. TE Connectivity parts (413589-6, 5413589-6) specify 500 mating cycles. For applications requiring specific mating cycle performance, confirm the substitute part specification. The absence of a stated rating does not indicate inadequate performance; it reflects different manufacturer specification practices.

Q: What is the significance of the "Includes" specification?

A: This indicates the component package contents. Part 112953 includes 3 pieces: 1 connector, 1 contact, 1 ferrule. Cinch UPL220 series includes 2 pieces: 1 connector, 1 contact (no ferrule). This difference may affect assembly requirements. Verify that the substitute part package contents match your assembly process requirements before selection.