Winchester Interconnect 310A105F BNC Connector Plug Equivalent & Substitute Parts

Part Overview

The Winchester Interconnect 310A105F is an active BNC connector plug designed for RF coaxial applications requiring 50 Ohm impedance. This male pin connector features solder termination and free hanging (in-line) mounting configuration, suitable for RG-58 series cable groups. The component is RoHS compliant and rated for operation across -55°C to 200°C with a maximum frequency of 4 GHz. Substitute parts may be required due to inventory availability, specific cable compatibility requirements, or termination method preferences in system design.

Substiute Parts

310A105F

Winchester InterconnectIn Stock: 1041310A105F Datasheet

Current PartRFQ

31-2-RFX

Amphenol RFIn Stock: 209331-2-RFX Datasheet

SimilarRFQ

VB10-2061

Cinch Connectivity SolutionsIn Stock: 1309VB10-2061 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 310A105F is determined by the following critical parameters: connector style (BNC), connector type (plug, male pin), impedance (50 Ohms), mounting type (free hanging in-line), and fastening type (bayonet lock). These parameters define the mechanical and electrical interface compatibility.

Full Compatibility Substitute: The Amphenol RF 31-2-RFX meets all core substitution criteria. It maintains identical BNC plug configuration, 50 Ohm impedance, solder termination, clamp shield termination, free hanging mounting, and bayonet lock fastening. Both components support 4 GHz maximum frequency and 500 V voltage rating. Cable group compatibility includes RG-58 series cables common to both parts.

Partial Compatibility Substitute: The Cinch Connectivity Solutions VB10-2061 shares BNC plug configuration, male pin type, free hanging mounting, and bayonet lock fastening. However, this part operates at 75 Ohm impedance (not 50 Ohm), uses crimp termination (not solder), and supports only 1 GHz maximum frequency. This part is not electrically compatible with 50 Ohm systems and is listed for reference only.

Parameter Comparison

Engineering Selection Recommendations

Amphenol RF 31-2-RFX is the direct electrical and mechanical equivalent for the Winchester Interconnect 310A105F. Both components are active products with current RoHS compliance certifications. The 31-2-RFX maintains identical impedance (50 Ohms), termination method (solder), and frequency rating (4 GHz). The operating temperature range of the 31-2-RFX (-65°C to 165°C) is narrower than the 310A105F (-55°C to 200°C); applications requiring operation above 165°C must use the original 310A105F. Both parts support equivalent cable groups including RG-58 series. Inventory availability of 2070 units for the 31-2-RFX provides supply continuity.

Cinch Connectivity Solutions VB10-2061 is not recommended as a substitute for 50 Ohm system applications. The 75 Ohm impedance creates impedance mismatch incompatibility. The crimp termination method differs from the solder termination of the 310A105F, requiring different assembly processes. The 1 GHz frequency limitation restricts use in applications requiring 4 GHz operation. This part is suitable only for independent 75 Ohm RF systems with crimp termination requirements.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 31-2-RFX directly replace the Winchester Interconnect 310A105F in existing designs?

A: Yes, for applications operating within -65°C to 165°C. Both connectors maintain 50 Ohm impedance, solder termination, 4 GHz frequency rating, and bayonet lock fastening. The 31-2-RFX includes additional components (braid clamp, gasket, washer) compared to the base 310A105F. Verify cable group compatibility; the 31-2-RFX supports extended cable options including LMR-195 and Belden B7806A in addition to RG-58 series.

Q: What are the key differences between the 310A105F and 31-2-RFX?

A: Operating temperature range differs: 310A105F operates -55°C to 200°C while 31-2-RFX operates -65°C to 165°C. Center contact plating differs: 310A105F uses nickel plating while 31-2-RFX uses gold plating. Dielectric material differs: 310A105F uses PTFE while 31-2-RFX uses POM acetal. Both maintain identical electrical performance at 50 Ohms and 4 GHz.

Q: Why is the VB10-2061 listed if it cannot substitute the 310A105F?

A: The VB10-2061 shares mechanical interface characteristics (BNC plug, bayonet lock, free hanging mounting) but operates at 75 Ohm impedance with crimp termination. It is included for reference to clarify why impedance and termination method are critical substitution parameters. Use only in independent 75 Ohm RF systems.

Q: What cable groups are compatible with the 310A105F and 31-2-RFX?

A: Both support RG-58, 58A, 58C, and 141 cable groups. The 31-2-RFX additionally supports RG-58B, 303, LMR-195, Belden B7806A, and 9907. Verify specific cable specifications in system design documentation.

Q: Are there packaging differences between the 310A105F and 31-2-RFX?

A: The 310A105F packaging is listed as unspecified. The 31-2-RFX is supplied in bulk packaging and includes six component pieces per connector unit (connector, braid clamp, clamp, contact, gasket, washer). Confirm packaging requirements for assembly processes.

Q: What compliance certifications apply to these connectors?

A: The 310A105F is RoHS Compliant. The 31-2-RFX is ROHS3 Compliant. Both are classified under ECCN EAR99 and HTSUS 8536.69.4010. Both have MSL rating of 1 (unlimited moisture sensitivity level).