6704 Equivalent & Substitute Parts Reference

Part Overview

The Pomona Electronics 6704 is a coaxial connector categorized as a BNC plug, male pin, designed specifically for 75 Ohm impedance. It is a free hanging (in-line) solder type connector compatible with RG-59 and Belden 1855A cable groups. This component is now designated as obsolete, making it necessary to identify directly compatible alternatives. The end of production status requires engineers to source functional substitutes where continued supply of the exact part is unavailable.

Substiute Parts

6704
Pomona ElectronicsIn Stock: 11376704 Datasheet
6704
Current Part
HBC1855A
Winchester InterconnectIn Stock: 2382HBC1855A Datasheet
HBC1855A
Direct

Key Parameters

ParameterValue
Manufacturer Part Number6704
ManufacturerPomona Electronics
CategoryCoaxial Connectors (RF)
DescriptionCONN BNC PLUG STR 75 OHM SOLDER
Connector StyleBNC
Connector TypePlug, Male Pin
Impedance75 Ohms
Mounting TypeFree Hanging (In-Line)
Cable GroupRG-59, Belden 1855A
Shield TerminationCrimp
Contact TerminationSolder
Fastening TypeBayonet Lock
Frequency - Max3 GHz
Number of Ports1
Housing ColorBlack
Center Contact MaterialBrass
Includes3 pcs - 1 Connector, 1 Contact, 1 Ferrule
Body MaterialBrass
Body FinishBlack Nickel
Center Contact PlatingGold
Dielectric MaterialPolytetrafluoroethylene (PTFE)
Voltage Rating500 V
Mating Cycles500
Insertion Loss0.2dB
RoHS StatusROHS3 Compliant
Part StatusObsolete

Substitute Part Grouping Explanation

Substitute options for the Pomona Electronics 6704 were identified strictly based on matching the following parameters: connector style (BNC), connector type (Plug, Male Pin), impedance (75 Ohms), mounting type (Free Hanging/In-Line), applicable cable group (Belden 1855A), shield termination type, contact material, voltage rating, body finish and material, dielectric material, insertion loss, mating cycles, housing color, fastening type, and RoHS compliance status. Only parts matching these fields are considered equivalent for application purposes within the coaxial connectors (RF) category.

Parameter Comparison

Parameter 6704
Pomona Electronics
HBC1855A
Winchester Interconnect
Category Coaxial Connectors (RF) Coaxial Connectors (RF)
Connector Style BNC BNC, HD
Connector Type Plug, Male Pin Plug, Male Pin
Impedance 75 Ohms 75 Ohms
Mounting Type Free Hanging (In-Line) Free Hanging (In-Line)
Cable Group RG-59, Belden 1855A Belden 1855A
Shield Termination Crimp Crimp
Contact Termination Solder Crimp
Fastening Type Bayonet Lock Bayonet Lock
Frequency - Max 3 GHz 1 GHz
Number of Ports 1 1
Housing Color Black Black
Center Contact Material Brass Brass
Includes 3 pcs - 1 Connector, 1 Contact, 1 Ferrule 3 pcs - 1 Connector, 1 Contact, 1 Ferrule
Body Material Brass Brass
Body Finish Black Nickel Black Nickel
Center Contact Plating Gold Gold
Dielectric Material Polytetrafluoroethylene (PTFE) Polytetrafluoroethylene (PTFE)
Voltage Rating 500 V 500 V
Mating Cycles 500 500
Insertion Loss 0.2dB 0.2dB
RoHS Status ROHS3 Compliant RoHS Compliant
Part Status Obsolete Active

Engineering Selection Recommendations

Selection between the Pomona Electronics 6704 and the Winchester Interconnect HBC1855A is determined based on availability and regulatory compliance status. The Pomona 6704 part is designated as obsolete, while the Winchester HBC1855A part is active. Both products are RoHS compliant, aligning with requirements for hazardous substance restrictions. Inventory status and compliance are the primary criteria for substitution in applications where regulatory certification must be maintained.

Frequently Asked Questions (FAQ)

Q1: What parameters must match when substituting coaxial connectors in the RF category?
A1: Substitution is based on equivalent impedance, connector style, connector type, mounting type, cable group compatibility, termination style, body and center contact materials/finishes, voltage rating, insertion loss, and regulatory compliance.

Q2: Is the HBC1855A a direct pin-for-pin mechanical and electrical replacement for 6704?
A2: Both parts share matching electrical and mechanical parameters, including impedance, connector style, pin type, body materials, finish, and essential mechanical features relevant for BNC plug applications.

Q3: How does part status affect usability in ongoing designs?
A3: The Pomona 6704 is obsolete and not recommended for new designs due to limited sourcing. Continued production and active status make HBC1855A suitable for ongoing and new projects.

Q4: Are there any considerations regarding product compliance?
A4: Both 6704 and HBC1855A meet RoHS requirements. Designs necessitating certification can use either part based on their respective RoHS statuses.

Q5: Is packaging a factor in interchangeability?
A5: Both presented parts are available in bulk packaging. No additional packaging constraints exist within these parameters.

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