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Custom Magnetic Cable Assembly

Custom 4-Pin Double-Ended Magnetic Pogo Pin Power & Data Cable

This custom 4-pin double-ended magnetic pogo pin cable assembly connects two matched magnetic interfaces through one integrated power and data cable. One molded connector end uses four spring-loaded pogo contacts, while the opposite end provides the corresponding magnetic mating interface. The four-contact Pin Map, end-to-end wiring, cable length, conductor gauge, magnetic retention, connector housings and device integration can be customized 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.

Engineering Summary: This custom 4-pin double-ended magnetic pogo pin cable connects two matched magnetic interfaces through one integrated cable assembly. Four electrical paths can be allocated to power, ground, data, detection or control functions according to the approved Pin Map. End-to-end wiring, cable construction, magnetic retention, connector orientation and device integration should be confirmed together in the project drawing.

This product is a double-ended magnetic interconnect cable rather than a USB-to-magnetic charging cable. The product image shows one magnetic connector end with four spring-loaded pogo contacts and a corresponding magnetic mating head at the opposite end.

The pogo pins generate electrical contact pressure, while the magnetic structures assist capture and retention. The housings should control orientation, alignment, working compression and mechanical stopping.

4-Pin Double-Ended Cable Architecture

Assembly ElementEngineering Function
Four-contact pogo pin endProvides four spring-loaded electrical contact paths
Opposite magnetic mating endProvides the corresponding project-specific mating interface
Magnetic structuresAssist capture and retention at the two connection points
Molded connector housingsControl orientation, alignment and final seating
Cable conductorsCarry the approved power, ground and signal functions between both ends
Cable strain reliefReduces conductor loading at the molded cable exits

Four-Contact Pin Map and End-to-End Wiring

The four contacts do not have one universal electrical definition. Each contact must be mapped from the first connector end to the corresponding contact at the opposite end.

Example ArchitecturePossible Contact Allocation
Power and dataPower, ground and two validated signal contacts
Charging with detectionPower, ground, detection and identification
Parallel power pathsTwo positive contacts and two return contacts
Project-specific interfaceFour customer-defined power, signal or control functions

These are engineering examples only. The final Pin Map must follow the approved schematic and cable drawing.

Engineering Note: Both connector drawings must identify the viewing direction and Pin 1 position. A mirrored contact layout can reverse the wiring sequence when the two connector ends are viewed from different sides.

Product Specification Framework

SpecificationProduct Definition
Product TypeDouble-ended magnetic pogo pin power and data cable assembly
Pin Count4 Pin
Contact LayoutLinear four-contact layout
Cable ArchitectureTwo magnetic connector ends connected by one cable
Interface AFour-contact spring-loaded magnetic connector
Interface BMatching magnetic mating connector according to the approved drawing
Pin MapProject-specific end-to-end wiring
Cable LengthCustomized according to device installation requirements
Wire GaugeSelected according to current, cable length and voltage-drop requirements
Data FunctionConfirmed through complete connector and cable-channel validation
Magnetic RetentionSpecified separately for each connector end and release direction
Environmental ProtectionDependent on the complete connector and device sealing structures

Power and Data Design

Electrical performance should be evaluated through the complete path from the first connector end, cable conductors and opposite magnetic interface to the receiving PCB or device.

The project should define:

  • Four-contact Pin Map and end-to-end continuity
  • Operating voltage, continuous current and peak current
  • Signal type and required data rate
  • Ground and signal-return allocation
  • Cable length, conductor gauge and shielding requirements
  • Maximum permitted voltage drop and temperature rise

Four contacts may support power and selected data functions, but Pin count alone does not establish USB, UART, I2C, CAN or another protocol. The complete cable and connected electronics must be validated for the required communication function.

Magnetic and Mechanical Integration

Because this cable has two magnetic ends, capture, retention and release should be specified independently for both interfaces.

  • Capture: How each magnetic end approaches its mating interface
  • Retention: How both ends remain connected during operation
  • Release: Which end should disconnect first under cable loading
  • Working compression: How far the pogo pins compress after seating

The two ends do not necessarily require identical magnetic force. One end may need stronger retention while the other is designed as the preferred breakaway interface.

Customization Options

  • Four-contact Pin Map
  • Connector-end orientation and Pin numbering
  • Cable length, wire gauge and jacket material
  • Power, data, detection and control functions
  • Magnetic retention for each end
  • Housing dimensions and contact pitch
  • Overmolding and strain-relief structure
  • Device-side mating components
  • Environmental sealing structure

Frequently Asked Questions

Is this product 3 Pin or 4 Pin?

It is a 4-pin magnetic cable assembly. The previous 3-pin product name and page information were incorrect.

Does the cable have magnetic connectors at both ends?

Yes. The product is designed as a double-ended magnetic cable with a four-contact pogo pin interface and a corresponding magnetic mating end.

Can the four contacts carry power and data together?

Yes, when the Pin Map, cable wiring and complete signal channel have been designed and validated for the required function.

Do both magnetic ends require the same holding force?

Not necessarily. Capture, retention and release can be specified independently for each connector end.

Can the cable length and connector housings be customized?

Yes. Cable length, conductor size, jacket, housing dimensions, magnetic force and mating structures can be customized according to the project.

Start Your 4-Pin Double-Ended Cable Project

Submit your Pin Map, cable length, electrical requirements and mating-interface drawings through the Get Quote & Samples page .

CTP can review the end-to-end Pin Map, cable construction, magnetic retention, connector orientation, housings and device-side mating structures 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