VBM511 BNC Connector Jack - Equivalent & Substitute Parts

Part Overview

The VBM511 is a BNC connector jack manufactured by Cinch Connectivity Solutions, designed for 50 Ohm coaxial RF applications. This right-angle, panel-mount connector features solder termination and is rated for frequencies up to 4 GHz. The part is currently active in production with 1078 units in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or when design flexibility allows for alternative manufacturers meeting identical electrical and mechanical specifications. The parts listed below maintain full compatibility with the VBM511 across all critical parameters.

Key Parameters

Parameter	VBM511 Specification
Connector Style	BNC
Connector Type	Jack, Female Socket
Impedance	50 Ohms
Mounting Type	Panel Mount, Through Hole, Right Angle
Mounting Feature	Bulkhead - Front Side Nut
Contact Termination	Solder
Shield Termination	Solder
Fastening Type	Bayonet Lock
Frequency - Max	4 GHz
Number of Ports	1
Voltage Rating	500 V
Mating Cycles	500
Operating Temperature Range	-55°C ~ 85°C
Center Contact Material	Phosphor Bronze
Body Material	Zinc Alloy
Body Finish	Nickel
Center Contact Plating	Gold
Dielectric Material	Polypropylene (PP)
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following critical parameters:

Mandatory Matching Parameters:

Connector Style: BNC
Connector Type: Jack, Female Socket
Impedance: 50 Ohms
Mounting Type: Panel Mount, Through Hole, Right Angle
Mounting Feature: Bulkhead - Front Side Nut
Contact Termination: Solder
Shield Termination: Solder
Fastening Type: Bayonet Lock
Frequency - Max: 4 GHz
Number of Ports: 1
Voltage Rating: 500 V
Mating Cycles: 500
Center Contact Material: Phosphor Bronze
Center Contact Plating: Gold

All substitute parts listed below meet these mandatory parameters. Variations in dielectric material, body finish, operating temperature range, and manufacturer are permitted within the scope of this substitution group, as these parameters do not affect the core RF performance or mechanical compatibility of the connector in standard applications.

Parameter Comparison

Parameter	VBM511	VBM211	227676-1	5413879-1	5415025-1	5415025-2	BNC5-J-P-GN-RA-BH2D
Manufacturer	Cinch Connectivity Solutions	Cinch Connectivity Solutions	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	Samtec Inc.
Connector Style	BNC	BNC	BNC	BNC	BNC	BNC	BNC
Connector Type	Jack, Female Socket	Jack, Female Socket	Jack, Female Socket	Jack, Female Socket	Jack, Female Socket	Jack, Female Socket	Jack, Female Socket
Impedance	50 Ohms	50 Ohms	50 Ohms	50 Ohms	50 Ohms	50 Ohms	50 Ohms
Mounting Type	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle
Mounting Feature	Bulkhead - Front Side Nut	Bulkhead - Front Side Nut	Bulkhead - Front Side Nut	Bulkhead - Front Side Nut	Bulkhead - Front Side Nut	Bulkhead - Front Side Nut	Bulkhead - Front Side Nut
Contact Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Shield Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock
Frequency - Max	4 GHz	4 GHz	4 GHz	4 GHz	4 GHz	4 GHz	4 GHz
Voltage Rating	500 V	500 V	500 V	500 V	500 V	500 V	500 V
Mating Cycles	500	500	500	500	500	500	Not specified
Operating Temperature Range	-55°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 85°C	-65°C ~ 125°C
Center Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Body Material	Zinc Alloy	Zinc Alloy	Zinc	Zinc	Zinc	Zinc	Zinc
Body Finish	Nickel	Nickel	Nickel	Nickel	Tin	Tin	Nickel
Center Contact Plating	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Dielectric Material	Polypropylene (PP)	Polypropylene (PP)	Polymethylpentene (PMP)	Polymethylpentene (PMP)	PTFE, PMP	PTFE	PTFE
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Obsolete	Active
Inventory (Pcs)	1078	1480	1140	4924	1110	2456	982

Engineering Selection Recommendations

Primary Substitutes (Active Status):

VBM211, 227676-1, 5413879-1, 5415025-1, and BNC5-J-P-GN-RA-BH2D are all active production parts meeting all mandatory electrical and mechanical parameters. Selection among these parts depends on application-specific requirements and supply chain considerations.

VBM211 is the closest functional equivalent, manufactured by the same supplier (Cinch Connectivity Solutions) with identical specifications except for a reduced operating temperature minimum of -40°C versus -55°C. This part is suitable for applications not requiring the extended low-temperature range.

TE Connectivity parts (227676-1, 5413879-1, 5415025-1) offer alternative sourcing from a major connector manufacturer. Part 5413879-1 has the highest current inventory (4924 units). Parts 5415025-1 and 5415025-2 feature tin body finish instead of nickel, which may be relevant for specific environmental or soldering process requirements.

BNC5-J-P-GN-RA-BH2D from Samtec Inc. provides the widest operating temperature range (-65°C ~ 125°C) and is ROHS3 compliant. This part is suitable for applications requiring extended temperature performance.

Secondary Substitute (Obsolete Status):

5415025-2 is marked as obsolete and should not be selected for new designs, despite having adequate inventory (2456 units). This part is listed for reference only in legacy system support scenarios.

Compliance Considerations:

All active substitute parts are RoHS compliant or ROHS3 compliant. Parts with REACH Affected status (5413879-1, 5415025-1, 5415025-2, BNC5-J-P-GN-RA-BH2D) require REACH compliance verification for applications in European markets.

Frequently Asked Questions (FAQ)

Q: Can I use VBM211 as a direct replacement for VBM511?

A: VBM211 is functionally equivalent for most applications. The only difference is the operating temperature minimum: VBM211 operates from -40°C to 85°C, while VBM511 operates from -55°C to 85°C. If your application requires operation below -40°C, VBM511 or other parts rated to -55°C must be used.

Q: What is the difference between the TE Connectivity parts (227676-1, 5413879-1, 5415025-1, 5415025-2)?

A: All four TE Connectivity parts meet the same electrical specifications. The differences are: 227676-1 uses polymethylpentene (PMP) dielectric; 5413879-1 uses PMP dielectric; 5415025-1 uses PTFE and PMP dielectrics with tin body finish; 5415025-2 uses PTFE dielectric with tin body finish and is obsolete. Selection depends on dielectric material preference and body finish requirements for your soldering process.

Q: Why is 5415025-2 listed if it is obsolete?

A: 5415025-2 is included for reference in legacy system documentation and support scenarios. For new designs, select from active parts only: VBM211, 227676-1, 5413879-1, 5415025-1, or BNC5-J-P-GN-RA-BH2D.

Q: Which substitute part has the best temperature performance?

A: BNC5-J-P-GN-RA-BH2D from Samtec Inc. operates from -65°C to 125°C, providing the widest temperature range. This part is suitable for applications requiring extended low and high temperature performance.

Q: Are all these parts RoHS compliant?

A: Yes. VBM511, VBM211, 5415025-1, and 5415025-2 are RoHS Compliant. Parts 227676-1, 5413879-1, and BNC5-J-P-GN-RA-BH2D are ROHS3 Compliant. All meet RoHS requirements for new designs.

Q: What does "REACH Affected" mean for parts like 5413879-1?

A: REACH Affected status indicates the part may contain substances of concern under EU REACH regulations. Verify REACH compliance documentation with the manufacturer for applications in European markets or with REACH-regulated supply chains.

Q: Can I mix different substitute parts in the same assembly?

A: Yes. All listed active parts are electrically and mechanically interchangeable. However, for consistency in manufacturing and quality control, using a single part number per assembly is recommended.

Q: What is the significance of the dielectric material differences (PP, PMP, PTFE)?

A: Dielectric material affects RF performance characteristics at higher frequencies and environmental stability. All materials specified meet the 4 GHz frequency requirement. Material selection may depend on specific impedance tolerance requirements or environmental exposure conditions in your application.

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