SBC1407B BNC Connector Plug 75 Ohm Crimp Equivalent & Substitute Parts

Part Overview

The SBC1407B is a BNC connector plug manufactured by Winchester Interconnect, designed for coaxial RF applications requiring 75 ohm impedance. This male pin connector features crimp termination for both center contact and shield, with bayonet lock fastening and free hanging (in-line) mounting configuration. The part is currently active in production with 1,080 pieces in stock. Equivalent and substitute parts are identified when they maintain the same electrical impedance, connector style classification, termination method, and mechanical mounting characteristics while meeting or exceeding the performance specifications of the original component.

Substiute Parts

SBC1407B

Winchester InterconnectIn Stock: 1128SBC1407B Datasheet

Current PartRFQ

034-1026

Amphenol RFIn Stock: 2217034-1026 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SBC1407B is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Impedance: 75 Ohms (mandatory match)
• Connector Style: BNC classification
• Connector Type: Plug, Male Pin
• Contact Termination: Crimp
• Shield Termination: Crimp
• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Bayonet Lock
• Number of Ports: 1

Secondary Compatibility Factors:

• Frequency rating equal to or greater than 1 GHz
• Voltage rating equal to or greater than 500 V
• Mating cycles equal to or greater than 500
• RoHS compliance status

The substitute part 034-1026 (Amphenol RF) meets all primary substitution criteria. This part maintains identical electrical impedance, connector classification, termination methods, and mechanical mounting configuration. The substitute part exceeds the frequency specification (4 GHz vs. 1 GHz) and maintains equivalent mating cycle rating and voltage performance.

Parameter Comparison

Engineering Selection Recommendations

SBC1407B Selection Criteria: The SBC1407B remains the primary choice when the application requires exact Winchester Interconnect sourcing, operates within the 1 GHz frequency band, or when cable group compatibility with Belden 1407 is specified. This part is RoHS Compliant and carries active production status with established inventory availability.

034-1026 Substitution Criteria: The 034-1026 serves as a direct functional substitute when frequency performance exceeding 1 GHz is required within the same mechanical and electrical framework. This part is ROHS3 Compliant, indicating compliance with the most current RoHS directive revision. The substitute part is manufactured by Amphenol RF and maintains active production status. The HD (High Density) BNC classification of the substitute part indicates enhanced mechanical and electrical performance characteristics while preserving bayonet lock compatibility and 75 ohm impedance specification.

Both parts carry identical mating cycle ratings (500 cycles) and maintain the same crimp termination methodology for center contact and shield. Selection between these parts should be based on supplier availability, cable group compatibility requirements, and frequency performance specifications of the target application.

Frequently Asked Questions (FAQ)

Q: Can the 034-1026 be used as a direct replacement for the SBC1407B in all applications?

A: The 034-1026 is electrically and mechanically compatible with the SBC1407B for applications operating at or below 1 GHz. Both parts maintain 75 ohm impedance, identical connector type classification (BNC plug, male pin), crimp termination for center contact and shield, and bayonet lock fastening. The substitute part's 4 GHz frequency rating exceeds the original specification, making it suitable for higher frequency applications within the same mechanical envelope.

Q: What is the difference between BNC and BNC HD connector styles?

A: BNC and BNC HD (High Density) are both bayonet lock connectors with 75 ohm impedance and identical mechanical mounting interfaces. The HD designation indicates enhanced performance characteristics and tighter mechanical tolerances. Both styles are compatible for applications requiring 75 ohm coaxial connections with crimp termination.

Q: Are there cable group compatibility differences between SBC1407B and 034-1026?

A: The SBC1407B is specified for Belden 1407 cable group. The 034-1026 is specified for RG-122, 180, 180A, 180B, 195, Belden 1855, and 1865A cable groups. Cable group compatibility should be verified against the specific cable used in the target application. Both connectors use crimp termination methodology.

Q: What does the packaging difference (not specified vs. Bulk) mean for component selection?

A: The SBC1407B packaging is not specified in the provided data. The 034-1026 is supplied in Bulk packaging. Packaging designation affects order quantities and handling procedures but does not impact electrical or mechanical compatibility. Verify minimum order quantities and packaging requirements with the supplier.

Q: Are both parts RoHS compliant?

A: Yes. The SBC1407B is RoHS Compliant. The 034-1026 is ROHS3 Compliant, indicating compliance with the current RoHS directive revision. Both parts meet RoHS environmental compliance requirements.

Q: What is the mating cycle rating and what does it indicate?

A: Both the SBC1407B and 034-1026 are rated for 500 mating cycles. This specification indicates the number of times the connector can be mated and unmated while maintaining electrical and mechanical performance within specification. This rating applies to the bayonet lock mechanism and contact interface.

Q: Is insertion loss a critical parameter for substitution?

A: The SBC1407B specifies 0.2 dB insertion loss. The 034-1026 insertion loss is not provided in the available data. For applications where insertion loss is a critical performance parameter, this specification should be obtained from the manufacturer before final component selection.