VMB324 Equivalent & Substitute Parts

Part Overview

The VMB324 is an SMB connector jack manufactured by Cinch Connectivity Solutions, designed for right-angle PCB mounting with 50-ohm impedance and solder termination. This connector operates across a frequency range up to 4 GHz and supports through-hole installation with snap-on fastening. The part is currently active in production with 691 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design compatibility across multiple manufacturers while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	VMB324 Specification
Connector Style	SMB
Connector Type	Jack, Male Pin
Impedance	50 Ohms
Mounting Type	Through Hole, Right Angle
Contact Termination	Solder
Shield Termination	Solder
Fastening Type	Snap-On
Frequency - Max	4 GHz
Number of Ports	1
Operating Temperature	-65°C ~ 165°C
Mating Cycles	500
Dielectric Material	Polytetrafluoroethylene (PTFE)
Center Contact Material	Brass
Body Material	Brass
Body Finish	Gold
Center Contact Plating	Gold
Housing Color	Gold
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the VMB324 are qualified based on strict equivalence across the following critical parameters:

Electrical Equivalence: Connector style (SMB), connector type (Jack, Male Pin), impedance (50 Ohms), frequency maximum (4 GHz), contact termination (Solder), shield termination (Solder), and dielectric material (PTFE).

Mechanical Equivalence: Mounting type (Through Hole, Right Angle), fastening type (Snap-On), number of ports (1), and mating cycles (500).

Environmental Equivalence: Operating temperature range (-65°C ~ 165°C) and moisture sensitivity level (1 - Unlimited).

Material & Finish Equivalence: Center contact material (Brass or Beryllium Copper), body finish (Gold), and center contact plating (Gold).

All nine substitute parts meet these core criteria. Variations in body material composition (Brass, Zinc, or Zinc Alloy), voltage rating specifications, insertion loss values, and compliance certifications do not affect functional interchangeability for the specified application.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Connector Style	Connector Type	Impedance	Mounting Type	Frequency - Max	Operating Temperature	Mating Cycles	Body Material	Center Contact Material	Dielectric Material	Product Status
VMB324	Cinch Connectivity Solutions	SMB	Jack, Male Pin	50 Ohms	Through Hole, Right Angle	4 GHz	-65°C ~ 165°C	500	Brass	Brass	PTFE	Active
1-1337481-0	TE Connectivity AMP Connectors	SMB	Jack, Male Pin	50 Ohms	Through Hole, Right Angle	4 GHz	-65°C ~ 165°C	500	Brass	Brass	PTFE	Active
131-1701-371	Cinch Connectivity Solutions	SMB	Jack, Male Pin	50 Ohms	Through Hole, Right Angle	4 GHz	-65°C ~ 165°C	500	Zinc	Brass	PTFE	Active
131-3701-301	Cinch Connectivity Solutions	SMB	Jack, Male Pin	50 Ohms	Through Hole, Right Angle	4 GHz	-65°C ~ 165°C	500	Brass	Brass	PTFE	Active
2010-1511-000	Radiall USA, Inc.	SMB	Jack, Male Pin	50 Ohms	Through Hole, Right Angle	4 GHz	-65°C ~ 165°C	500	Brass	Brass	PTFE	Active
414963-1	TE Connectivity AMP Connectors	SMB	Jack, Male Pin	50 Ohms	Through Hole, Right Angle	4 GHz	-65°C ~ 165°C	500	Zinc Alloy	Brass	PTFE	Active
415340-1	TE Connectivity AMP Connectors	SMB	Jack, Male Pin	50 Ohms	Through Hole, Right Angle	4 GHz	-65°C ~ 165°C	500	Zinc Alloy	Brass	PTFE	Active
B51-053-0000220	ITT Cannon, LLC	SMB	Jack, Male Pin	50 Ohms	Through Hole, Right Angle	4 GHz	-65°C ~ 165°C	500	Brass	Beryllium Copper	PTFE	Active
R114665000	Radiall USA, Inc.	SMB	Jack, Male Pin	50 Ohms	Through Hole, Right Angle	4 GHz	-65°C ~ 165°C	500	Brass	Brass	PTFE	Active
R114665000W	Radiall USA, Inc.	SMB	Jack, Male Pin	50 Ohms	Through Hole, Right Angle	4 GHz	-65°C ~ 165°C	500	Brass	Brass	PTFE	Active

Engineering Selection Recommendations

All nine substitute parts are qualified as direct equivalents to the VMB324 based on matching electrical, mechanical, and environmental specifications. Selection among these alternatives should be based on the following factors:

Product Status & Availability: All parts maintain Active product status, ensuring continued manufacturing support and supply chain reliability.

Compliance & Certifications: Parts 1-1337481-0, 131-1701-371, 131-3701-301, 414963-1, 415340-1, R114665000, and R114665000W carry RoHS3 compliance and REACH affected status, meeting regulatory requirements for restricted substance control. Part B51-053-0000220 carries MSL Not Applicable designation. Part 2010-1511-000 carries RoHS3 compliance and REACH affected status.

Inventory Availability: Part 414963-1 offers the highest stock level at 64,520 units. Parts 131-3701-301 (5,394 units) and 1-1337481-0 (2,200 units) provide substantial secondary options. Remaining parts range from 808 to 2,150 units in stock.

Manufacturer Diversity: Selection across manufacturers (TE Connectivity, Cinch Connectivity Solutions, Radiall USA, ITT Cannon) supports supply chain resilience and reduces single-source dependency.

Frequently Asked Questions (FAQ)

Q: Can I substitute any of these parts directly into a design using VMB324?

A: Yes. All nine substitute parts meet the core electrical and mechanical specifications of the VMB324, including 50-ohm impedance, SMB jack configuration, through-hole right-angle mounting, 4 GHz frequency capability, and identical operating temperature range. Direct substitution is supported without design modification.

Q: What is the difference between parts with different body materials (Brass, Zinc, Zinc Alloy)?

A: Body material composition does not affect electrical performance or mechanical compatibility. All materials are plated with gold finish and maintain equivalent mechanical strength and environmental resistance for the specified application. Material selection may reflect manufacturing process differences or cost optimization by individual manufacturers.

Q: Does the center contact material variation (Brass vs. Beryllium Copper) affect compatibility?

A: No. Both materials provide equivalent electrical conductivity and mechanical performance within the specified 50-ohm impedance and 4 GHz frequency range. The B51-053-0000220 part uses Beryllium Copper for enhanced contact durability and lower insertion loss (0.25 dB), but this does not prevent functional interchangeability.

Q: Are there compliance differences I should consider?

A: Parts carrying RoHS3 and REACH compliance certifications meet current regulatory requirements for restricted substance control. Part B51-053-0000220 carries MSL Not Applicable designation, indicating no moisture sensitivity concerns. All parts are suitable for standard PCB assembly processes.

Q: Which substitute part offers the best availability?

A: Part 414963-1 (TE Connectivity) provides the highest inventory level at 64,520 units in stock, followed by 131-3701-301 (Cinch Connectivity Solutions) at 5,394 units. Both support immediate procurement without lead time constraints.

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

A: Yes. All substitute parts are electrically and mechanically equivalent to the VMB324 and to each other. Multiple parts can be used interchangeably within the same assembly without performance degradation or compatibility issues.

Q: What is the significance of insertion loss specifications listed for some parts?

A: Insertion loss values (0.6 dB for TE Connectivity parts, 0.25 dB for B51-053-0000220) represent signal attenuation at RF frequencies. These values are within acceptable ranges for SMB connector applications and do not affect mechanical or electrical interchangeability. Parts without specified insertion loss values perform equivalently within the 4 GHz operating range.

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