OEM / ODM Custom Interconnect Solutions
Custom Magnetic Cable Assembly

Round Magnetic Charging Cable with Detachable Mating Plug

A custom round magnetic charging cable with a recessed concentric cable head and separate cylindrical mating component. The actual electrical contact count, center-contact function, outer-ring function, return path, voltage, current capability, cable construction and opposite-end termination are defined according to the approved project drawing.

Confirm the Complete Cable Assembly
Magnetic End Pin count, shape and mating direction
Cable Construction Length, conductor and outer jacket
Opposite Termination USB, Type-C, DC or custom wire end
Electrical Functions Power, signal, detection or control

A Magnetic Cable Is More Than the Connector End

The finished assembly must define the magnetic mating component, internal conductor arrangement, cable construction and the opposite-end connection as one complete electrical system.

01

Magnetic Mating Interface

Confirm Pin count, contact allocation, magnet arrangement, connector shape, polarity control and mating direction.

02

Cable Construction

Define cable length, conductor count, wire specification, shielding requirements, jacket and flexibility.

03

Opposite-End Termination

Select USB, Type-C, DC plug, bare wire, terminal, PCB connection or another customized termination.

04

Device-Side Integration

Confirm installation space, outlet direction, strain relief, exposed-contact state and user operation.

ROUND MAGNETIC CHARGING CABLE ASSEMBLY

Engineering Summary

This round magnetic charging cable combines an integrated cable-side magnetic head with a separate cylindrical mating component. The visible interface uses a recessed circular face with a central contact position and concentric surrounding structure.

The actual electrical contact count must be defined by the approved wiring diagram. The central contact is visible, but the electrical function of the concentric outer ring cannot be confirmed from appearance alone.

Magnets primarily assist capture and retention. Final position, alignment and seating should be controlled by the circular mating geometry and mechanical datums rather than magnetic attraction alone.

Concentric Round Mating Architecture

The cable-side head uses a recessed round mating face, while a separate cylindrical component forms the opposite side of the magnetic interface.

The concentric geometry can support a compact detachable charging interface, but rotational freedom, polarity behavior and mechanical keying must be confirmed from the approved design.

Interface Shape Round / circular

Mating Geometry Concentric recessed interface

Separate Mate Cylindrical mating component visible

Primary Function Project-defined charging

Electrical Contact Count and Return Path

One central contact position is visible, but the complete electrical contact count should not be determined from the product image alone.

A charging interface requires a complete conductive loop. The approved wiring diagram should therefore identify the central-contact function, outer-ring function, polarity and complete return path.

Central Contact Function → To Be Confirmed
Outer Ring Function → To Be Confirmed
Complete Return Path → Defined by Approved Wiring Diagram

If the outer ring participates in the electrical return path, its material, surface finish, mating resistance and cable connection should be included in the complete electrical validation.

Rotational Mating Requires Electrical Confirmation

A circular interface should not automatically be described as a 360-degree electrical connection.

Rotational mating depends on the electrical symmetry of the center contact and outer ring, polarity requirements, mechanical keying and the device-side mating architecture.

Any claim regarding unrestricted rotational mating should be confirmed by the approved electrical and mechanical drawings.

Magnetic Capture and Release Behavior

The magnetic structure assists approach and retention after the mating components engage.

Capture force, retention force, separation force and peel force describe different mechanical conditions and should be specified separately where required.

Stronger magnetic attraction is not automatically better. Retention should be balanced with cable direction, device mass, enclosure strength and the intended release behavior.

Final alignment and seating should be controlled by the mechanical mating geometry.

Contact Compliance and Working Stroke

The image confirms a central contact position, but the internal spring-loaded structure cannot be established from appearance alone.

If a pogo contact is used, the approved drawing should separately define working stroke, total travel, spring force and installed compression.

Working stroke represents the intended operating compression and should not be confused with maximum total travel.

The contact should provide electrical connection and controlled compliance rather than serve as the primary mechanical hard stop.

Charging Current and Complete Conductive Path

Charging-current capability cannot be determined from the circular connector size or visible contact diameter alone.

Power Source → Opposite-End Termination → Cable Conductors → Magnetic Cable Head → Contact Interface → Confirmed Return Path → Device PCB → Charging Circuit → Battery / Load

Vdrop = I × Rpath
Ploss = I² × Rpath

Cable length, wire gauge, termination resistance, contact resistance, return-path resistance, mating condition, PCB copper and temperature rise should be reviewed together before releasing a continuous-current rating.

Cable Construction and Opposite-End Termination

The round magnetic head is only one part of the complete charging cable assembly.

Cable length, conductor count, wire gauge, jacket construction, flexibility, strain relief and opposite-end termination should be defined according to the finished device requirements.

USB-A, USB-C, DC plug, bare wire, terminal or another interface should only be stated after the approved cable drawing confirms the actual configuration.

Application Fit

This round magnetic charging cable architecture can be evaluated for compact electronic products requiring a detachable circular charging interface.

  • Wearable electronic devices
  • Sleep-tech accessories
  • Compact electronic products
  • Charging docks and accessories
  • Portable device charging interfaces
  • Customer-defined magnetic charging systems

Smart blindfold integration can be evaluated when the electrical, mechanical and environmental requirements of the specific device are confirmed.

Product Specifications

SpecificationDetails
Product TypeRound Magnetic Charging Cable Assembly
Primary FunctionCharging
Interface ShapeRound / Circular
Mating GeometryConcentric Recessed Interface
Electrical Pin CountTo Be Confirmed
Central ContactOne Visible Central Contact Position
Outer Ring FunctionTo Be Confirmed
Return PathDefined by Approved Wiring Diagram
Separate Mating ComponentVisible; Supply Scope To Be Confirmed
Magnetic FunctionCapture + Retention
Final Position / AlignmentControlled by Mechanical Mating Geometry
Rotational MatingTo Be Confirmed
Cable LengthProject-Specific
Opposite-End TerminationTo Be Confirmed
VoltageProject-Specific
Continuous CurrentTo Be Confirmed
Peak CurrentTo Be Confirmed
Current CapabilityValidate Complete Conductive Path
Contact TypeTo Be Confirmed
Working StrokeTo Be Confirmed
Total TravelTo Be Confirmed
Magnetic RetentionProject-Specific
Cycle LifeTo Be Confirmed
Material / PlatingTo Be Confirmed
IP RatingTo Be Confirmed at Complete Assembly Level

Customization Options

  • Electrical contact count and contact functions
  • Center-contact and outer-ring allocation
  • Complete return-path architecture
  • Voltage and continuous / peak current
  • Cable length and wire gauge
  • Opposite-end termination
  • Cable-head and mating-component dimensions
  • Rotational and polarity requirements
  • Magnetic retention and release behavior
  • Device-side installation structure

Explore related Round Magnetic Cable Connectors for alternative circular magnetic cable architectures.

Information Engineers Should Provide

  • Actual electrical contact count
  • Center-contact function
  • Outer-ring function
  • Complete wiring and return-path diagram
  • Operating voltage
  • Continuous and peak current
  • Cable length and wire gauge
  • Opposite-end termination
  • Round cable-head dimensions
  • Device-side mating dimensions
  • Rotational and polarity requirements
  • Contact type and working stroke
  • Retention, separation and peel requirements
  • Environmental requirements
  • 2D / 3D drawings when available
  • Expected project volume

FAQ

What is a round magnetic charging cable with a detachable mating plug?

It is a magnetic cable assembly using a round cable-side charging head and a separate mating component. This version uses a concentric circular interface.

How many electrical contacts does this magnetic cable use?

One central contact position is visible, but the complete electrical contact count must be confirmed because the surrounding ring may have an electrical, magnetic or mechanical function.

Is the outer concentric ring the return contact?

This cannot be confirmed from appearance alone. The outer-ring function and complete return path should be defined by the approved wiring diagram.

Does the round interface support 360-degree mating?

Circular geometry alone does not establish unrestricted rotational mating. Electrical symmetry, polarity, mechanical keying and contact functions must be confirmed.

What charging current can this cable support?

Current capability is project-specific and must be validated through the complete conductive path, including the cable, termination, contact interface, return path, device PCB and charging circuit.

Is the central contact a pogo pin?

A central contact position is visible, but the internal spring-loaded structure, working stroke and total travel should be confirmed from the approved contact drawing.

What magnetic force should be specified?

The project should distinguish capture, retention, separation and peel conditions. A single magnetic-force value should not be used without defining the test direction and mating state.

Can this cable be used for a smart blindfold?

The round architecture can be evaluated for smart blindfold and other wearable charging projects when the electrical rating, available installation space, mating geometry and environmental requirements are confirmed.

What information is required for a custom version?

Provide the electrical contact functions, return path, voltage, continuous and peak current, cable length, wire gauge, opposite-end termination, mating dimensions, rotational requirements and available 2D or 3D drawings.

CUSTOM ROUND MAGNETIC CHARGING CABLE DEVELOPMENT

Request an Engineering Review

Send CTP your contact functions, complete return-path design, voltage, continuous and peak current, cable length, wire gauge, opposite-end termination, round mating dimensions, rotational requirements, magnetic requirements and device-side drawings. Our engineering team can review the complete charging interface before quotation and sample development. Request Custom Quote & Samples

Engineering Review for Round Magnetic Charging Cable with Detachable Mating Plug

This product page presents a CTP magnetic cable assembly configuration for engineering reference. Final dimensions, electrical ratings, materials, magnet structure, sealing level and reliability targets are not universal values; they are confirmed against the approved drawing, installation condition and model-specific validation plan.

Information to provide for evaluation

  • source-side interface and device-side magnetic head
  • pin definition, current, voltage and signal requirements
  • cable length, conductor, jacket, shielding and strain relief
  • magnetic retention, polarity, sealing, color and packaging
  • sample quantity, validation plan and forecast volume

How specifications are confirmed

CTP reviews the application and prepares a drawing or specification for approval before sample production. Test scope, acceptance criteria and report format should identify the model, sample status, method, conditions, result and review date.

Can this magnetic cable assembly be customized?

Yes. Customization can cover geometry, contact layout, materials, cable construction, magnetic structure, sealing and appearance. Feasibility depends on the application and approved specification.

Are the electrical and waterproof values universal?

No. Current, voltage, resistance, temperature rise and ingress-protection claims apply only to the identified model and stated test conditions.

What determines sample and production timing?

Timing is confirmed after the drawing, materials, tooling, sample quantity, validation scope and production requirements have been reviewed.

Information Required Before Cable Development

A reference product image is not enough to define a cable assembly. Confirm the following information before drawing, sampling or quotation review.

1. Pin Map Define power, return, signal, control, detection and unused contacts.
2. Voltage and Current Provide voltage, continuous current, peak current and operating cycle.
3. Cable Length Confirm finished length, tolerance, moving conditions and routing path.
4. Wire Construction Define conductor count, wire requirement, shielding and outer-jacket conditions.
5. Opposite-End Interface Confirm USB, Type-C, DC, terminal, bare wire or custom connection.
6. Mechanical Conditions Provide available space, outlet direction, strain relief and mating requirements.

From Cable Requirements to Project Validation

The exact project route depends on whether an existing product can be used, modified or requires a new cable assembly design.

01

Requirement Review

Confirm product scope, Pin Map, cable length, termination, quantity and application conditions.

02

Cable and Connector Mapping

Match magnetic contacts to conductors, source-side wiring and device-side functions.

03

Drawing and Sample Scope

Confirm dimensions, outlet direction, cable construction and required sample configuration.

04

Validation and Production Review

Review electrical, mechanical and environmental conditions before production approval.

Have a Cable Drawing, Pin Map or Device Requirement?

Submit the magnetic-end structure, electrical functions, cable length, conductor requirements, opposite-end interface, installation space and available drawings for project review.

Submit Magnetic Cable Requirements