WVB-7-702N BNC Connector Jack Equivalent & Substitute Parts

Part Overview

The WVB-7-702N is a BNC connector jack manufactured by Winchester Interconnect, designed for 75 Ohm coaxial RF applications. This female socket connector features through-hole solder termination and operates across a frequency range up to 4 GHz. The part is currently active in production with 733 units in stock.

Substitute parts are identified when equivalent BNC connector jacks share the same connector style, type, termination method, mounting configuration, and fastening mechanism, while operating within compatible frequency and impedance specifications. Alternative sources provide equivalent functionality for applications where the primary part is unavailable or where specific material or compliance requirements necessitate component substitution.

Key Parameters

Parameter	Value
Manufacturer Part Number	WVB-7-702N
Manufacturer	Winchester Interconnect
Category	Coaxial Connectors (RF)
Connector Style	BNC
Connector Type	Jack, Female Socket
Impedance	75 Ohms
Mounting Type	Through Hole
Contact Termination	Solder
Shield Termination	Solder
Fastening Type	Bayonet Lock
Frequency - Max	4 GHz
Voltage Rating	500 V
Operating Temperature	-65°C ~ 165°C
Mating Cycles	500
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the WVB-7-702N are classified into two functional groups based on impedance compatibility:

Group 1: 75 Ohm Impedance Equivalents

These parts maintain the exact 75 Ohm impedance specification of the primary part. Substitution within this group is direct and does not require circuit impedance recalculation. The following parameters remain constant across all Group 1 substitutes:

Connector Style: BNC
Connector Type: Jack, Female Socket
Mounting Type: Through Hole
Contact Termination: Solder
Shield Termination: Solder
Fastening Type: Bayonet Lock
Frequency - Max: 4 GHz
Impedance: 75 Ohms
Voltage Rating: 500 V
Mating Cycles: 500

Group 2: 50 Ohm Impedance Alternatives

These parts operate at 50 Ohm impedance, which differs from the primary part specification. Selection from this group requires circuit design verification to confirm impedance compatibility. All other mechanical and electrical parameters remain equivalent to the primary part.

Parameter Comparison

Parameter	WVB-7-702N	031-5329-72RFX	71K101-400A5
Manufacturer	Winchester Interconnect	Amphenol RF	Rosenberger
Impedance	75 Ohms	75 Ohms	75 Ohms
Connector Type	Jack, Female Socket	Jack, Female Socket	Jack, Female Socket
Mounting Type	Through Hole	Through Hole	Through Hole
Contact Termination	Solder	Solder	Solder
Shield Termination	Solder	Solder	Solder
Fastening Type	Bayonet Lock	Bayonet Lock	Bayonet Lock
Frequency - Max	4 GHz	4 GHz	4 GHz
Voltage Rating	500 V	500 V	400 V
Mating Cycles	500	500	500
Center Contact Material	Phosphor Bronze	Phosphor Bronze	Beryllium Copper
Body Material	Brass	Brass	Brass
Body Finish	Nickel	Nickel	Nickel
Center Contact Plating	Gold	Gold	Gold
Dielectric Material	Polytetrafluoroethylene (PTFE)	Polybutylene Terephthalate (PBT), Polyester	Polytetrafluoroethylene (PTFE)
Operating Temperature	-65°C ~ 165°C	Not Specified	-65°C ~ 165°C
Product Status	Active	Active	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99	EAR99
HTSUS	8536.69.4010	8536.69.4010	8536.69.4010

Engineering Selection Recommendations

Direct Substitutes (75 Ohm Impedance)

The 031-5329-72RFX (Amphenol RF) and 71K101-400A5 (Rosenberger) are direct functional equivalents to the WVB-7-702N. Both maintain 75 Ohm impedance and are rated for 4 GHz maximum frequency operation.

The 031-5329-72RFX carries ROHS3 compliance and REACH affected status. The 71K101-400A5 carries RoHS compliance. Both parts are active in production with adequate inventory availability (1,395 and 1,209 units respectively).

The 71K101-400A5 operates at 400 V voltage rating compared to the primary part's 500 V specification. This difference requires verification against circuit voltage requirements before selection.

50 Ohm Alternatives

The following parts operate at 50 Ohm impedance and are suitable only for applications where circuit impedance specifications permit 50 Ohm operation:

031-5329-51RFX (Amphenol RF): ROHS3 compliant, 2,181 units in stock
031-5329-52RFX (Amphenol RF): ROHS3 compliant, 2,854 units in stock
1-1337445-0 (TE Connectivity): ROHS3 compliant, PTFE dielectric, 2,400 units in stock
227699-1 (TE Connectivity): RoHS compliant, 923 units in stock
5221123-2 (TE Connectivity): ROHS3 compliant, 3,397 units in stock
5222420-1 (TE Connectivity): RoHS compliant, 1,520 units in stock
5413969-2 (TE Connectivity): ROHS3 compliant, PTFE dielectric, 5,912 units in stock
6274315-1 (TE Connectivity): ROHS3 compliant, 803 units in stock

All 50 Ohm alternatives maintain through-hole solder termination, bayonet lock fastening, 4 GHz frequency capability, 500 V voltage rating, and 500 mating cycles. Operating temperature ranges vary between -55°C ~ 85°C and -65°C ~ 165°C depending on the specific part.

Frequently Asked Questions (FAQ)

Q: Can I substitute a 50 Ohm BNC connector for the 75 Ohm WVB-7-702N?

A: Substitution is possible only if the circuit design accommodates 50 Ohm impedance. The WVB-7-702N is specified for 75 Ohm systems. Using a 50 Ohm connector in a 75 Ohm circuit creates impedance mismatch, resulting in signal reflections and performance degradation. Verify circuit impedance requirements before selecting a 50 Ohm alternative.

Q: What is the difference between the 031-5329-72RFX and the WVB-7-702N?

A: Both connectors maintain 75 Ohm impedance, through-hole solder termination, and 4 GHz frequency capability. The primary differences are manufacturer (Amphenol RF versus Winchester Interconnect), dielectric material (PBT/Polyester versus PTFE), and compliance certifications (ROHS3/REACH versus standard). Electrical and mechanical performance are equivalent for 75 Ohm applications.

Q: Why does the 71K101-400A5 have a lower voltage rating than the WVB-7-702N?

A: The 71K101-400A5 is rated for 400 V maximum voltage, while the WVB-7-702N is rated for 500 V. This difference reflects design specifications from different manufacturers. Selection of the 71K101-400A5 requires confirmation that circuit operating voltages do not exceed 400 V.

Q: Are all substitute parts RoHS compliant?

A: RoHS compliance status varies among substitute parts. The 031-5329-72RFX, 031-5329-51RFX, 031-5329-52RFX, 1-1337445-0, 5221123-2, 5413969-2, and 6274315-1 are ROHS3 compliant. The 227699-1 and 5222420-1 are RoHS compliant. Verify compliance requirements for your application before part selection.

Q: What is the inventory status of the direct 75 Ohm substitutes?

A: The 031-5329-72RFX has 1,395 units in stock, and the 71K101-400A5 has 1,209 units in stock. Both parts are available for immediate procurement. The primary WVB-7-702N has 733 units in stock.

Q: Can I use a 50 Ohm connector in a video or broadcast application designed for 75 Ohms?

A: No. Video and broadcast systems are standardized for 75 Ohm impedance. Using 50 Ohm connectors creates impedance discontinuities that degrade signal quality, increase reflections, and reduce system performance. Maintain 75 Ohm impedance throughout the signal chain by selecting the 031-5329-72RFX or 71K101-400A5.

Q: What dielectric materials are used in the substitute parts?

A: The WVB-7-702N uses PTFE (Polytetrafluoroethylene). The 031-5329-72RFX uses PBT/Polyester. The 71K101-400A5 uses PTFE. The 50 Ohm alternatives use various dielectric materials including PTFE, PBT, Polyester, and PPO (Polyphenylene Oxide). PTFE provides superior high-frequency performance and lower dielectric loss.

Q: Are all parts rated for the same operating temperature range?

A: No. The WVB-7-702N and 71K101-400A5 are rated for -65°C ~ 165°C. The 031-5329-72RFX does not specify an operating temperature range. Most 50 Ohm alternatives are rated for -55°C ~ 85°C. Verify operating temperature requirements for your application.

Q: What is the insertion loss specification for these connectors?

A: The WVB-7-702N specifies 0.20 dB insertion loss. The 031-5329-72RFX and 031-5329-51RFX specify 0.2 dB insertion loss. Most other substitute parts do not provide insertion loss specifications. For applications requiring low insertion loss performance, select parts with documented specifications.

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