310A205P BNC Connector Plug Equivalent & Substitute Parts

Part Overview

The 310A205P is an active BNC connector plug manufactured by Winchester Interconnect, designed for RF coaxial applications requiring 50 Ohm impedance. This male pin connector features crimp or solder termination for the center contact and crimp termination for the shield, with a bayonet lock fastening mechanism. The connector is rated for frequencies up to 4 GHz and operates across a temperature range of -40°C to 165°C. Finding equivalent or substitute parts becomes necessary when addressing inventory constraints, lead time requirements, or specific application compatibility needs while maintaining electrical and mechanical performance standards.

Substiute Parts

310A205P

Winchester InterconnectIn Stock: 904310A205P Datasheet

Current PartRFQ

VB10-2061

Cinch Connectivity SolutionsIn Stock: 1309VB10-2061 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of coaxial RF connectors is determined by strict adherence to electrical and mechanical compatibility parameters. The primary substitution criteria for the 310A205P include:

Electrical Parameters: Impedance matching is critical for RF applications. The 310A205P operates at 50 Ohms, which is the standard impedance for most RF and microwave systems. Substitute parts must maintain this impedance specification to ensure signal integrity and prevent reflections.

Mechanical Parameters: The connector style (BNC), connector type (Plug, Male Pin), mounting type (Free Hanging/In-Line), and fastening mechanism (Bayonet Lock) must remain consistent across substitutes to ensure physical compatibility with mating receptacles and cable assemblies.

Termination Specifications: Contact termination method (Crimp or Solder) and shield termination (Crimp) define the cable attachment approach. Substitutes must support equivalent termination capabilities.

Performance Specifications: Maximum frequency rating (4 GHz), voltage rating (500 V), and operating temperature range (-40°C to 165°C) establish the operational envelope. Substitutes must meet or exceed these specifications.

Compliance Requirements: RoHS compliance status ensures regulatory adherence for restricted substance limitations.

The substitute part VB10-2061 does not meet the impedance requirement of 50 Ohms, as it is specified for 75 Ohm applications. This fundamental electrical difference prevents direct substitution in 50 Ohm systems.

Parameter Comparison

Engineering Selection Recommendations

Based on the provided specifications and compliance data, the VB10-2061 cannot serve as a direct substitute for the 310A205P in standard 50 Ohm RF applications. The impedance specification of 75 Ohms in the VB10-2061 represents a fundamental electrical incompatibility that would result in signal degradation and system performance issues in 50 Ohm systems.

Both parts maintain RoHS compliance and equivalent voltage ratings of 500 V. The VB10-2061 provides an extended lower operating temperature limit (-65°C versus -40°C), which may be advantageous in certain environmental conditions. However, the VB10-2061 operates at a maximum frequency of 1 GHz, which is below the 4 GHz capability of the 310A205P.

For applications requiring a 50 Ohm BNC plug connector with the specified performance characteristics, the 310A205P remains the appropriate selection. Alternative 50 Ohm BNC plug connectors from other manufacturers should be evaluated if inventory or lead time constraints require substitution.

Frequently Asked Questions (FAQ)

Q: Can the VB10-2061 be used as a replacement for the 310A205P?

A: No. The VB10-2061 is specified for 75 Ohm impedance, while the 310A205P is designed for 50 Ohm systems. These impedance values are not interchangeable and would cause signal reflections and performance degradation in 50 Ohm applications.

Q: What is the significance of impedance matching in BNC connectors?

A: Impedance matching between connectors, cables, and system components is essential for RF signal integrity. A 50 Ohm connector must be paired with 50 Ohm cables and receptacles. Mixing 50 Ohm and 75 Ohm components results in impedance discontinuities that cause signal reflections, insertion loss, and system performance degradation.

Q: Are both connectors physically compatible despite the impedance difference?

A: While both connectors share the same BNC style, male pin configuration, and bayonet lock fastening mechanism, physical compatibility does not ensure electrical compatibility. The impedance difference makes them unsuitable for direct substitution in RF applications.

Q: What are the key differences in termination methods between these parts?

A: The 310A205P supports both crimp and solder termination for the center contact, providing flexibility in cable assembly methods. The VB10-2061 supports crimp termination only. Both parts use crimp termination for the shield.

Q: How do the frequency ratings compare?

A: The 310A205P operates up to 4 GHz, making it suitable for higher frequency RF applications. The VB10-2061 is rated to 1 GHz, limiting its use to lower frequency systems. The 310A205P's higher frequency capability provides greater application flexibility.

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

A: The 310A205P operates from -40°C to 165°C. The VB10-2061 operates from -65°C to 165°C, providing a wider lower temperature range. Both connectors share the same upper temperature limit of 165°C.

Q: Are both parts RoHS compliant?

A: Yes. Both the 310A205P and VB10-2061 are RoHS compliant, meeting regulatory requirements for restricted substance limitations in electronic components.

Q: What cable groups are compatible with the 310A205P?

A: The 310A205P is specified for use with RG-223 cable. The VB10-2061 is compatible with RG-179 and RG-187 cables. These cable specifications are not interchangeable due to the different impedance requirements.