SBC9259 BNC Connector Plug 75 Ohm Crimp - Equivalent & Substitute Parts

Part Overview

The SBC9259 is an active BNC connector plug manufactured by Winchester Interconnect, 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 operates at frequencies up to 1 GHz and is suitable for free-hanging (in-line) installations. The SBC9259 is RoHS compliant and maintains weatherproof ingress protection characteristics. Substitute parts are identified when inventory constraints, lead time requirements, or procurement preferences necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

SBC9259

Winchester InterconnectIn Stock: 999SBC9259 Datasheet

Current PartRFQ

VB10-2031

Cinch Connectivity SolutionsIn Stock: 1578VB10-2031 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SBC9259 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Impedance: 75 Ohms (exact match required)
• Frequency - Max: 1 GHz (minimum requirement)
• Voltage Rating: 500 V (minimum requirement)
• Insertion Loss: 0.2 dB (maximum allowable)

Mechanical Compatibility Requirements:

• Connector Style: BNC (exact match required)
• Connector Type: Plug, Male Pin (exact match required)
• Contact Termination: Crimp (exact match required)
• Shield Termination: Crimp (exact match required)
• Mounting Type: Free Hanging (In-Line) (exact match required)
• Fastening Type: Bayonet Lock (exact match required)

Compliance Requirements:

• RoHS Status: RoHS Compliant (required)
• Product Status: Active (required)

The substitute part VB10-2031 manufactured by Cinch Connectivity Solutions meets all critical parameters and qualifies as a direct electrical and mechanical equivalent to the SBC9259.

Parameter Comparison

Engineering Selection Recommendations

Both the SBC9259 and VB10-2031 are active products with RoHS compliance and identical electrical specifications. Selection between these parts should be based on the following factors:

Inventory Availability: The VB10-2031 currently maintains higher inventory levels (1510 pcs) compared to the SBC9259 (971 pcs), which may influence procurement timelines.

Packaging Configuration: The SBC9259 is supplied in standard packaging, while the VB10-2031 is supplied in bulk packaging with included components (1 Connector, 1 Contact, 1 Ferrule).

Material Specifications: The VB10-2031 provides additional material detail documentation, including center contact material (Brass), center contact plating (Gold), and dielectric material (Polytetrafluoroethylene/PTFE). The SBC9259 does not specify these secondary material characteristics in available documentation.

Operating Temperature Range: The VB10-2031 specifies an operating temperature range of -65°C to 165°C. The SBC9259 does not provide operating temperature specifications in available documentation.

Both connectors are suitable for direct substitution in 75-ohm BNC applications operating at frequencies up to 1 GHz with 500V maximum voltage rating.

Frequently Asked Questions (FAQ)

Q: Can the VB10-2031 be used as a direct replacement for the SBC9259 in existing designs?

A: Yes. The VB10-2031 meets all critical electrical and mechanical parameters specified for the SBC9259, including impedance (75 Ohms), connector style (BNC plug, male pin), termination method (crimp), mounting configuration (free hanging in-line), and frequency rating (1 GHz). Both parts are RoHS compliant and active products.

Q: What are the key differences between these two connectors?

A: The primary differences are manufacturer identity (Winchester Interconnect vs. Cinch Connectivity Solutions), packaging format (standard vs. bulk), and material documentation detail. The VB10-2031 provides specified operating temperature range (-65°C to 165°C) and additional material specifications (gold-plated brass center contact, PTFE dielectric), while the SBC9259 does not document these secondary characteristics.

Q: Are there any compatibility issues with cable types?

A: The SBC9259 is specified for RG-59 and Belden 9259 cable groups. The VB10-2031 is specified for RG-59 cable group. Both connectors are compatible with standard 75-ohm coaxial cables in the RG-59 category.

Q: What is the significance of the crimp termination method?

A: Crimp termination for both center contact and shield indicates that these connectors require mechanical crimping tools for installation. This termination method is standard for BNC connectors in this impedance class and provides reliable, permanent connections suitable for field installation.

Q: Do these connectors support the same mating cycle count?

A: Yes. Both the SBC9259 and VB10-2031 are rated for 500 mating cycles, indicating equivalent mechanical durability and connector life expectancy.

Q: What does the 0.2 dB insertion loss specification mean?

A: Insertion loss of 0.2 dB represents the signal attenuation introduced by the connector at operating frequencies up to 1 GHz. Both connectors maintain identical insertion loss characteristics, ensuring equivalent signal integrity in RF applications.

Q: Are both connectors suitable for weatherproof applications?

A: The SBC9259 is specified with weatherproof ingress protection. The VB10-2031 does not specify ingress protection rating in available documentation. For applications requiring weatherproof characteristics, the SBC9259 documentation explicitly confirms this capability.