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Custom Magnetic Cable Assembly

Custom 1-Pin Round Magnetic Pogo Pin Power & Data Cable

This custom 1-pin round magnetic pogo pin charging cable uses a central spring-loaded contact and a concentric magnetic interface for compact device power connections. The electrical return path, cable length and gauge, magnetic retention, connector housing, strain relief and opposite-end termination are defined according to the approved project drawing. Data transmission should only be specified when the complete contact path and communication function have been validated.

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.

Engineering Summary: This custom 1-pin round magnetic pogo pin charging cable uses a central spring-loaded contact and a concentric magnetic mating structure for compact device power connections. The return-current path, cable construction, magnetic retention, housing, strain relief and opposite-end termination must be confirmed together in the approved project drawing. Data capability should only be stated after the complete electrical channel and communication function have been validated.

This product is a round magnetic cable assembly rather than a standalone pogo pin. The image shows one central spring-loaded contact surrounded by a circular metal and magnetic interface. The center contact, outer structure, cable conductors and device-side mating component should be treated as one complete electrical and mechanical system.

The term “1 Pin” describes the number of visible pogo pin contacts. It does not automatically define the total number of conductive paths inside the interface.

Round 1-Pin Magnetic Interface Structure

Assembly ElementEngineering Function
Central pogo pinProvides a spring-loaded electrical contact path
Concentric outer structureProvides magnetic mating and may include a project-defined return contact
Round connector housingControls alignment, contact position and cable-side mechanical support
Magnetic structureAssists connector capture and retention
Cable conductorsConnect the magnetic interface to the power source or customer electronics
Strain reliefReduces bending and pulling loads at the cable exit

Engineering Note: A complete power circuit requires both an outgoing and return-current path. Confirm whether the outer concentric ring is electrically conductive and how it is connected before publishing the Pin Map.

Electrical Interface Definition

The electrical function should be defined from the internal wiring and device schematic rather than from the visible pogo pin count alone.

Possible ArchitectureRequired Confirmation
Charging interfaceCenter contact and outer return path, polarity and power rating
Single-wire communicationSignal protocol, reference return, logic levels and complete-channel validation
Detection interfaceDetection circuit, connection state and power-enable logic
Project-specific connectionInternal wiring, device-side contact and approved schematic

Do not describe the product as a data cable only because it has a pogo pin. Data support depends on the electrical paths, protocol, wiring, PCB routing and connected electronics.

Product Specification Framework

SpecificationProduct Definition
Product TypeRound magnetic pogo pin charging cable assembly
Pogo Pin Count1 central spring-loaded contact
Contact GeometryRound concentric interface
Electrical Return PathConfirmed according to the internal wiring and mating-side drawing
Electrical FunctionCharging, detection or validated project-specific function
Cable LengthCustomized according to installation requirements
Wire GaugeSelected according to current, cable length and voltage-drop requirements
Rated Current / VoltageConfirmed through complete current-path and thermal validation
Contact ResistanceMeasured using a defined contact path, working compression and test boundary
Magnetic RetentionSpecified according to the device structure and release direction
Opposite-End TerminationUSB, bare wire, terminal, PCB or customized termination
Environmental ProtectionDependent on the complete connector and device sealing structure

Power and Data Design Boundary

Current capability should be evaluated through the complete path, including the power source, cable conductors, central pogo pin, outer return structure, mating contacts and device PCB.

The project should define:

  • Center and outer-contact polarity
  • Operating voltage and continuous current
  • Peak current and operating duty cycle
  • Cable length, conductor gauge and insulation
  • Maximum permitted voltage drop
  • Maximum permitted temperature rise
  • Electrical behavior during partial mating and separation

Where data transmission is required, also define the communication protocol, signal level, reference return, required data rate and acceptance criteria.

Magnetic and Mechanical Integration

Magnetic performance should be divided into capture, retention and release rather than represented by one isolated force value.

  • Capture: How the round connector approaches the mating interface
  • Retention: How it remains connected during normal use
  • Release: How it separates under axial, side or peel loading
  • Working compression: How far the central pogo pin compresses after seating

Stronger magnetic attraction is not automatically better. Excessive force may increase mating impact, removal force and pogo pin compression.

Customization Options

  • Center and outer-contact electrical allocation
  • Connector diameter and installed length
  • Pogo pin working stroke and spring force
  • Cable length, gauge, color and insulation
  • Magnetic capture, retention and release behavior
  • Housing material and overmolding structure
  • Cable exit and strain-relief design
  • USB, bare-wire, terminal or custom opposite end
  • Device-side concentric mating component
  • Charging, detection or validated data function

Potential Applications

This round magnetic charging cable may be evaluated for:

  • Small wearable devices
  • Personal-care electronics
  • Compact charging docks
  • Smart-home accessories
  • Handheld electronic devices
  • Battery-powered sensor modules
  • Project-specific low-voltage equipment

Frequently Asked Questions

Does 1 Pin mean there is only one electrical path?

Not necessarily. One Pin usually describes the central spring-loaded pogo pin. The outer concentric structure may provide another conductive path, but this must be confirmed from the internal wiring drawing.

Can a 1-pin magnetic cable provide power?

Yes, when the complete interface includes both outgoing and return-current paths. Polarity and internal wiring must be defined before production.

Can this product transmit data?

Data transmission may be possible in a project-specific single-wire or other validated architecture. It should not be claimed without confirming the protocol, reference path and complete electrical channel.

Can the cable length and opposite end be customized?

Yes. Cable length, conductor size, insulation and USB, bare-wire, terminal or selected custom terminations can be evaluated.

Is the connector automatically IP54 waterproof?

No. An IP rating should only be stated when the defined connector or installed device assembly has passed the applicable test conditions.

How should the magnetic force be selected?

Capture, retention and release should be specified separately according to the device structure, cable direction and intended operation.

Start Your Round Magnetic Cable Project

Submit the internal wiring, cable, electrical and device-side requirements through the Get Quote & Samples page .

CTP can review the central and outer-contact allocation, round housing, pogo pin stroke, magnetic structure, cable construction and device-side mating interface before prototype development. Final specifications should be confirmed in the approved drawing and validation plan.

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