Miniature Multi-Core Composite Coaxial Cable

Miniature multi-core composite coaxial cable is designed for compact signal systems, sensors, medical devices, precision instruments, and miniature electronic equipment requiring multiple micro coaxial channels in one cable. This series includes 3-core and 4-core composite coaxial cable structures with silvered copper alloy conductors, PFA insulation, shielding, PFA jacket layers, 50Ω impedance, and custom support for multi-channel miniature cable assemblies.

Multi-Core Micro Coax
3-Core / 4-Core Options
50Ω Impedance
Custom Signal Assemblies

Overview

Miniature Multi-Core Composite Coaxial Cable is designed for compact signal systems, sensors, medical devices, precision instruments, and miniature electronic equipment requiring multiple micro coaxial channels in one integrated cable structure.

This product family combines several fine coaxial signal lines into one composite cable. Compared with using multiple individual micro coaxial cables separately, a multi-core composite structure can simplify routing, improve cable management, support multi-channel signal transmission, and help maintain a cleaner assembly layout in space-limited devices.

This page is intended for product selection. Exact specifications should be confirmed by core count, conductor size, cable outside diameter, impedance, capacitance, shielding structure, jacket material, color, bending requirement, cable length, termination method, and project drawing before ordering.

Series Options

The table below helps buyers compare the available miniature multi-core composite coaxial cable options before reviewing detailed drawings or custom assembly requirements.

Series Option	Product Positioning	Typical Selection Scenario
3-Core Composite Coaxial Cable	Miniature composite coaxial cable with three internal coaxial channels	For compact devices requiring three shielded signal channels in one integrated cable structure.
4-Core Composite Coaxial Cable	Miniature composite coaxial cable with four internal coaxial channels	For multi-channel signal systems requiring four fine coaxial channels and compact cable routing.
BYC Custom	Custom multi-core micro coaxial cable structure	For projects requiring custom core count, color, jacket structure, cable length, termination, connector, shielding, or documentation support.

Features

Multi-Core Coaxial Structure

Combines multiple miniature coaxial signal lines into one composite cable for cleaner routing and compact device assembly.

3-Core and 4-Core Options

Available in 3-core and 4-core composite coaxial cable structures to support different multi-channel signal layouts.

50Ω Signal Transmission

Designed with representative 50Ω ±5Ω characteristic impedance for compact signal and miniature RF-style applications.

PFA Insulation and Jacket

PFA insulation and jacket structures support compact cable construction, electrical insulation, and stable signal performance.

Shielded Internal Channels

Each internal coaxial structure includes conductor, insulation, shielding, and jacket layers to support signal protection.

Custom Assembly Support

BYC Cables can review custom length, color coding, stripping, termination, connector, and documentation requirements.

Construction & Materials

Miniature multi-core composite coaxial cables are designed for high-density signal routing where several micro coaxial channels must be managed together. Final construction should be selected according to core count, impedance, cable diameter, signal layout, color identification, shielding, jacket structure, and assembly process.

Construction Options

Component	Available Options	Selection Notes
Core Count	3-core or 4-core composite coaxial cable	Core count should be selected according to the number of signal channels required by the device or system.
Inner Conductor	Silvered copper alloy conductor	The listed structure uses 42AWG-class fine conductor construction for miniature signal transmission.
Insulation	PFA insulation	PFA supports compact insulation thickness and stable electrical performance for miniature coaxial structures.
Shielding	Silvered copper alloy shielding	Shielding supports signal protection and helps control interference between channels and external sources.
Internal Jacket	PFA jacket around individual coaxial elements	Individual jacket layers protect each internal coaxial channel and help maintain cable structure.
Outer Jacket	PFA outer jacket	The outer jacket combines the internal coaxial elements into one manageable multi-core composite cable.
Color Identification	Selected internal colors such as black, green, blue, and yellow depending on structure	Color identification supports channel management, assembly, inspection, and repair work.
Customization	Custom core layout, cable length, color, jacket, termination, connector, and documentation options	BYC Cables can review drawings, samples, device interface, and assembly requirements before recommending a final construction.

Construction Differences

Option	Construction Focus	Confirmed Structure	When to Choose
4-Core Composite Coaxial Cable	Four internal miniature coaxial channels in one composite cable	Includes A-line and B-line coaxial structures, with silvered copper alloy conductor, PFA insulation, shielding, PFA jacket, and outer PFA jacket.	Choose when the device requires four compact coaxial channels or a more complex multi-channel signal layout.
3-Core Composite Coaxial Cable	Three internal miniature coaxial channels in one composite cable	Uses similar miniature coaxial construction with silvered copper alloy conductor, PFA insulation, shielding, PFA jacket, and outer PFA jacket.	Choose when the device requires three compact coaxial channels with simplified routing and smaller multi-core configuration.
BYC Custom	Project-specific composite micro coaxial cable	Core count, color, jacket, cable OD, stripping, termination, and documentation can be reviewed based on drawings or samples.	Choose when the standard 3-core or 4-core structure does not fully match your device interface or assembly process.

Specifications

The specifications below are intended for preliminary product selection. Final values should be confirmed according to selected core count, conductor layout, jacket structure, outside diameter, termination method, and project drawing.

Product Family	Miniature Multi-Core Composite Coaxial Cable
Included Options	3-core composite coaxial cable and 4-core composite coaxial cable
Conductor Material	Silvered copper alloy
Conductor Construction	7/0.025mm, 42AWG-class structure
Insulation Material	PFA
Shielding Material	Silvered copper alloy
Jacket Material	PFA internal jacket and PFA outer jacket
Characteristic Impedance	50Ω ±5Ω, representative listed value
Capacitance	110pF/m, representative listed value
Dielectric Strength	500V AC/min, representative listed value
Center Conductor Resistance	Max. 7000Ω/km
Insulation Resistance	Min. 1000Ω·km, as listed in the table
Operating Temperature	-40°C to +80°C (-40°F to +176°F)
Minimum Static Bending Radius	30mm, representative listed value for 3-core option; final value should be confirmed by selected construction.
Customization	Available based on core count, cable length, color, jacket, termination, connector, stripping, testing, and documentation requirements.

For accurate quotation, please provide the required core count, cable outside diameter limit, cable length, color identification requirement, termination or connector method, bending requirement, operating environment, and applicable drawings or samples.

Representative Structure Data

Option	Internal Coaxial Structure	Representative OD Data	Electrical Data
4-Core Composite Coaxial Cable	A-line and B-line coaxial structures with silvered copper alloy conductor, PFA insulation, shielding, and PFA jacket.	Single coax conductor OD 0.075±0.01mm; insulation OD 0.195±0.02mm; shielding OD 0.235±0.02mm; internal jacket OD 0.275±0.02mm; outer jacket OD 0.68±0.02mm.	Impedance 50Ω±5Ω; capacitance 110pF/m; dielectric strength 500V AC/min; operating temperature -40°C to +80°C (-40°F to +176°F).
3-Core Composite Coaxial Cable	Three miniature coaxial channels with silvered copper alloy conductor, PFA insulation, shielding, PFA jacket, and outer PFA jacket.	Single coax conductor OD 0.075±0.01mm; insulation OD 0.195±0.02mm; shielding OD 0.235±0.02mm; internal jacket OD 0.275±0.02mm; outer jacket OD 0.65±0.02mm.	Impedance 50Ω±5Ω; capacitance 110pF/m; dielectric strength 500V AC/min; min. static bending radius 30mm; operating temperature -40°C to +80°C (-40°F to +176°F).

Applications

Miniature multi-core composite coaxial cables are suitable for compact devices and multi-channel signal systems where several shielded micro coaxial channels must be routed together in limited space.

Medical Devices

For selected medical instruments, probes, sensors, and compact signal systems requiring multiple miniature coaxial channels.

Precision Instruments

For test equipment, inspection devices, measurement instruments, and compact internal multi-channel signal wiring.

Sensor Systems

For multi-channel sensor connections where shielding, compact size, and cable management are important.

Miniature Electronic Equipment

For high-density electronic assemblies requiring several fine coaxial signal lines in one compact cable.

Multi-Channel Signal Transmission

For equipment requiring three or four shielded coaxial channels with controlled impedance and compact routing.

Custom Micro Cable Assemblies

For custom assemblies requiring cable cutting, stripping, termination, color identification, connectorization, or device-specific layout.

Selection Guide

Use this guide as a starting point. Final selection should be confirmed by signal channel count, available routing space, outside diameter, termination process, color identification, and device interface.

Requirement	Recommended Option	Selection Reason
Three signal channels	3-Core Composite Coax	Recommended when the device requires three shielded micro coaxial channels in one compact cable.
Four signal channels	4-Core Composite Coax	Recommended when the device requires four internal coaxial channels or more complex multi-channel signal routing.
Smallest composite cable OD	3-Core Option	The 3-core option lists a representative outer jacket OD of 0.65±0.02mm.
More internal channels	4-Core Option	The 4-core option supports one additional coaxial channel while keeping a compact representative OD of 0.68±0.02mm.
Device-specific layout	BYC Custom	BYC Cables can review core count, color coding, stripping, termination, connector, length, and testing requirements.

Customization Options

BYC Cables can support custom miniature multi-core composite coaxial cable requirements based on drawings, samples, device interface, and project documentation needs.

Core Count

3-core and 4-core composite coaxial cable options are available, with custom review possible based on device requirements.

Cable Length

Custom cable length and handling requirements can be reviewed according to assembly process and device layout.

Color Identification

Color options can support channel identification, assembly, testing, and maintenance.

Termination and Connector

Stripping, soldering, connector, or device-specific termination requirements can be reviewed based on drawings.

Outer Jacket and Layout

PFA jacket structure, final outside diameter, cable grouping, and routing layout can be reviewed according to application needs.

Testing and Documentation

Impedance, resistance, capacitance, dielectric strength, inspection records, and technical documents can be provided based on project needs.

Request a Quote

Please provide the required core count, cable length, outside diameter limit, color identification requirement, termination or connector method, bending requirement, operating environment, and applicable drawings or samples.

FAQ

What is a miniature multi-core composite coaxial cable used for?

It is used for compact devices that require multiple shielded micro coaxial signal channels in one cable, such as sensors, medical devices, precision instruments, and miniature electronic equipment.

What core count options are available?

This series includes 3-core and 4-core composite coaxial cable options. Custom structures can also be reviewed based on project drawings.

What impedance does this cable support?

The representative listed characteristic impedance is 50Ω ±5Ω.

What materials are used?

The listed structure uses silvered copper alloy conductor and shielding, with PFA insulation, PFA internal jacket, and PFA outer jacket.

What is the operating temperature range?

The listed operating temperature range is -40°C to +80°C (-40°F to +176°F).

Can BYC Cables customize multi-core micro coaxial cable assemblies?

Yes. BYC Cables can review custom core count, cable length, color identification, stripping, termination, connector, testing, and documentation requirements based on drawings or samples.