OEM / ODM Custom Interconnect Solutions
Custom Magnetic Cable Assembly

4-Head 2 Pin Square Magnetic Charging Cable

A custom 4-head magnetic charging cable assembly with four square 2-pin magnetic heads connected through a branched cable structure. Each head uses two side-by-side contacts within a recessed mating area. Pin Map, branch current, total trunk current, cable lengths, wire gauges, magnetic retention and device-side mating geometry are defined according to the approved project requirements.

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.

4-HEAD 2 PIN MAGNETIC CHARGING CABLE

Engineering Summary

This multi-head magnetic charging cable assembly uses four cable-side magnetic heads connected through a branched cable structure. Each head has two side-by-side electrical contact positions inside a compact square mating housing.

The reference configuration combines a common cable trunk with four branch leads. The exact electrical relationship between the branches, including whether the heads operate simultaneously or share a common power source, must be defined by the approved wiring diagram.

Magnets primarily assist capture and retention at each charging head. Final position, alignment and seating should be controlled by the square housing, mating surfaces and mechanical datums rather than magnetic attraction alone.

Four-Head Cable Architecture

The visible assembly contains four cable-side magnetic charging heads branching from a common cable section. This differs from a conventional single-head magnetic charging cable because the trunk, breakout section and individual branches must be evaluated as one complete harness.

Head Count Four cable-side magnetic heads

Pin Count 2 Pin per head

Head Geometry Square / compact rectangular

Cable Structure Common trunk + multiple branches

2-Pin Interface at Each Charging Head

Each magnetic head contains two visible electrical contact positions arranged side-by-side within a recessed mating area.

The approved Pin Map should define Pin 1 orientation, viewing direction, power and return allocation and any polarity-control requirements.

Pin Count → 2 Pin per Head
Pin Functions → Defined by Approved Drawing
Branch Wiring Topology → To Be Confirmed

The same Pin Map and polarity orientation should be controlled across all four heads unless the project intentionally defines different branch functions.

Branch Current and Total Cable Current

A multi-head cable requires separate evaluation of the current in each branch and the current carried by the common cable trunk.

If all four branches are connected to one common source and may operate at the same time, the source-side current is the sum of the active branch currents:

Itotal = I1 + I2 + I3 + I4

This does not mean that each head automatically carries the same current. Device load, branch resistance, cable length and connector resistance can differ between branches.

Main-trunk conductor size should therefore be reviewed against total expected current, while each branch conductor should be reviewed against its individual load and temperature-rise requirement.

Voltage Drop Across Multiple Branches

Each charging branch has its own conductive path. Branch length and conductor resistance can therefore produce different voltage drops at the four magnetic heads.

Vdropi = Ii × Rpathi

Ploss,total = Σ(Ii² × Rpathi)

Branch cable length, wire gauge, junction resistance, contact resistance and device-side resistance should be included when evaluating voltage available at each load.

Equal-looking branch cables should not automatically be assumed to have equal electrical resistance without the approved cable drawing and conductor specification.

Common Trunk and Branch Breakout Design

The branch point is a critical part of a multi-head charging cable because electrical current and mechanical cable loads are transferred between the common trunk and the individual branch leads.

The approved cable drawing should define main-trunk length, branch lengths, wire gauge, conductor allocation, breakout construction, strain relief and cable outlet directions.

If the assembly is repeatedly moved, pulled or flexed, cable-bending and branch-junction validation should be included in the project-specific test plan.

Magnetic Capture at Each Head

Each magnetic head should be treated as an individual mating interface for mechanical-force evaluation.

Capture force, retention force, separation force and peel force describe different mechanical conditions and should not be represented by one undefined magnetic-force value.

Magnetic retention should also be distinguished between a single head and the overall cable assembly. A force measured on one mated head cannot automatically be multiplied by four to describe the behavior of the complete harness.

Final position and alignment should be controlled by the mating housings and mechanical datums.

Square Housing and Rotational Orientation

The square head geometry can provide defined rotational orientation when the matching device-side geometry includes corresponding mechanical features.

Square shape alone does not prove perfect alignment, anti-vibration performance or a defined locking condition.

Mechanical stops, mating depth, X/Y tolerance and angular orientation should be defined by the approved connector and device drawings.

Contact Compliance and Working Stroke

Two electrical contact positions are visible in each head, but the internal spring-loaded structure should be confirmed from the approved contact drawing.

If pogo contacts are used, working stroke, total travel, spring force and installed compression should be specified separately.

Working stroke represents the intended operating compression, while total travel represents the available mechanical movement of the contact.

The square connector housing should define the final seated position. Spring-loaded contacts should provide electrical contact and controlled Z-axis compliance rather than serve as the main mechanical hard stop.

Device-Side Mating Components

The reference image shows a separate device-side mating component, but the complete supply quantity and mounting method should be confirmed for the project.

PCB, FPC, wire, housing-embedded or another device-side termination should only be stated after the approved mechanical and electrical drawings define the actual configuration.

If one mating component is required for each of the four cable heads, the final supply scope should explicitly identify the quantity and device-side installation method.

Environmental and Reliability Validation

Multi-head construction, square housing geometry and recessed contacts do not by themselves establish corrosion resistance, vibration performance, cycle life or waterproof capability.

Contact material, plating, cable jacket, branch-junction construction, housing and environmental requirements should be defined for the actual project.

An IP rating should only be stated after the complete mated interfaces, device housings and sealing architecture have been defined and tested.

Product Specifications

SpecificationDetails
Product TypeMulti-Head Magnetic Charging Cable Assembly
Reference Head Count4 Cable-Side Heads
Pin Count2 Pin per Head
Primary FunctionCharging
Head ShapeSquare / Compact Rectangular
Contact Arrangement2 Contacts Side-by-Side per Head
Cable TopologyCommon Trunk + Multiple Branches
Pin MapDefined by Approved Drawing
Branch Electrical TopologyTo Be Confirmed
Simultaneous Head OperationTo Be Confirmed
Main Trunk LengthProject-Specific
Branch LengthsProject-Specific
Main Trunk Wire GaugeTo Be Confirmed
Branch Wire GaugeTo Be Confirmed
Source-Side TerminationTo Be Confirmed
VoltageProject-Specific
Continuous Current per HeadTo Be Confirmed
Total Trunk CurrentTo Be Confirmed
Current ValidationValidate Trunk + Branch Conductive Paths
Magnetic FunctionCapture + Retention
Magnetic Retention per HeadProject-Specific
Contact TypeTo Be Confirmed
Working StrokeTo Be Confirmed
Total TravelTo Be Confirmed
Material / PlatingTo Be Confirmed
Cycle LifeTo Be Confirmed
IP RatingTo Be Confirmed at Complete Assembly Level

Customization Options

CTP can review the complete multi-head charging harness around the customer’s branch topology, electrical load, cable routing and device-side integration requirements.

  • Number of magnetic charging heads
  • 2-pin Pin Map and polarity
  • Main-trunk and branch wiring topology
  • Current requirement per head
  • Maximum total trunk current
  • Main cable and individual branch lengths
  • Main-trunk and branch wire gauges
  • Source-side termination
  • Square magnetic-head dimensions
  • Device-side mounting structure
  • Magnetic retention and release behavior

Explore related 2 Pin Magnetic Cable Connectors for alternative two-contact cable structures.

Application Fit

The four-head branched architecture can be evaluated for equipment requiring several detachable two-contact charging interfaces from one cable assembly.

  • Multi-point charging fixtures
  • Modular electronic equipment
  • Multiple removable device modules
  • Charging racks and service fixtures
  • Lighting or display modules when project requirements are confirmed
  • Customer-defined multi-node charging systems

Final application suitability depends on the wiring topology, total load, branch currents, cable lengths, mating structures and environmental requirements.

Information Engineers Should Provide

  • Required number of charging heads
  • 2-pin Pin Map and polarity
  • Whether all heads operate simultaneously
  • Operating voltage
  • Continuous and peak current per head
  • Maximum total source current
  • Main-trunk cable length
  • Individual branch lengths
  • Main-trunk and branch wire gauges
  • Source-side termination
  • Head dimensions and contact pitch
  • Device-side mating and mounting structure
  • Contact type and working stroke
  • Retention, separation and peel requirements
  • Environmental requirements
  • 2D / 3D drawings when available
  • Expected project volume

FAQ

What is a 4-head 2 pin magnetic charging cable?

It is a branched cable assembly with four magnetic charging heads. Each head uses a two-contact charging interface, while the common cable trunk and branch wiring are defined according to the project.

Does 4 heads mean this is an 8 pin connector?

No. Each magnetic head is a separate 2-pin interface. Four 2-pin heads should not be described as one 8-pin mating connector.

Can all four magnetic heads charge at the same time?

Simultaneous operation must be confirmed by the electrical design. The source capability, common-trunk wire gauge, branch currents and temperature rise must support the intended operating condition.

How is total current calculated in a four-head cable?

When the four branches share one source, total source current is the sum of the active branch currents. Each branch and the common trunk must be sized for its actual electrical load.

Do all four branches have the same voltage drop?

Not necessarily. Voltage drop depends on branch current, cable length, conductor resistance, junction resistance and contact resistance for each path.

What is the purpose of the square magnetic head?

The square housing can provide a defined mechanical orientation when used with corresponding mating geometry. Final position and alignment still depend on the complete mechanical interface.

Is the magnetic retention force the same for all four heads?

The target retention can be specified consistently, but actual force must be validated for each approved head and mating configuration. Capture, retention, separation and peel conditions should be distinguished.

Are the two contacts in each head pogo pins?

Two contact positions are visible, but the internal spring-loaded contact structure, working stroke and total travel should be confirmed by the approved contact drawing.

Can the branch lengths be customized?

Yes. Main-trunk and branch lengths can be reviewed for the required equipment layout, but conductor resistance, voltage drop, cable routing and mechanical strain should be evaluated together.

What information is required for a custom multi-head charging cable?

Provide the required head count, Pin Map, voltage, current per head, simultaneous-load condition, main-trunk and branch lengths, wire gauges, source-side termination, mating dimensions, magnetic requirements and available device drawings.

CUSTOM MULTI-HEAD MAGNETIC CABLE DEVELOPMENT

Request an Engineering Review

Send CTP your required head count, 2-pin Pin Map, voltage, current per head, simultaneous-load condition, total source current, main-trunk length, branch lengths, wire gauges, source-side termination, head dimensions, magnetic requirements and available device drawings. Our engineering team can review the complete multi-branch charging harness before quotation and sample development. Request Custom Quote & Samples

Engineering Review for 4-Head 2 Pin Square Magnetic Charging Cable

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