Magnetic Mating Interface
Confirm Pin count, contact allocation, magnet arrangement, connector shape, polarity control and mating direction.
A custom 1 pin round magnetic charging cable with one central spring-loaded contact and a concentric outer mating structure. The electrical function of the outer ring and the complete return path must be defined by the approved wiring diagram. Cable length, voltage, current capability, working stroke, magnetic retention and opposite-end termination are project-specific.
The finished assembly must define the magnetic mating component, internal conductor arrangement, cable construction and the opposite-end connection as one complete electrical system.
Confirm Pin count, contact allocation, magnet arrangement, connector shape, polarity control and mating direction.
Define cable length, conductor count, wire specification, shielding requirements, jacket and flexibility.
Select USB, Type-C, DC plug, bare wire, terminal, PCB connection or another customized termination.
Confirm installation space, outlet direction, strain relief, exposed-contact state and user operation.
1 PIN CONCENTRIC MAGNETIC CHARGING CABLE
This 1 pin round magnetic charging cable is a complete cable assembly with one visible central spring-loaded contact and a concentric outer mating structure.
The term “1 Pin” describes the central pogo contact count. It does not by itself define the complete number of electrical paths in the charging circuit. The function of the concentric outer ring and the return path must be confirmed by the approved wiring diagram.
Magnets primarily assist capture and retention during mating. Final position, alignment and seating should be controlled by the circular housing and mechanical mating geometry, while the spring-loaded center contact provides controlled axial compliance.
The visible mating face uses a central contact surrounded by a concentric outer ring. This architecture creates a compact circular interface, but the electrical role of each visible element must be defined from the wiring design rather than appearance alone.
Pogo Pin Count One central spring-loaded contact
Interface Shape Round / circular concentric mating face
Outer Ring Visible; electrical function to be confirmed
Primary Function Project-specific charging / power interface
A charging interface requires a complete current loop. One visible pogo pin therefore does not by itself establish the complete power and return architecture.
The approved wiring diagram should define the electrical function of the center spring contact, the concentric outer ring and any additional conductive structure used in the interface.
If the outer ring is used as the return path, its material, surface finish, contact geometry, mating condition and connection to the cable conductor should be evaluated as part of the complete electrical path. If the outer ring is not conductive, another return path must be defined.
Center Contact Function → To Be Confirmed
Outer Ring Function → To Be Confirmed
Complete Return Path → Defined by Approved Wiring Diagram
The magnetic structure assists the circular cable head during approach and helps retain the mating interface after engagement.
Capture force, retention force, separation force and peel force describe different mechanical conditions. The required magnetic behavior should be defined around the device geometry and intended release direction.
Final alignment and seating should be controlled by the mating housing, circular mechanical datums and seating surfaces. Magnetic attraction alone should not define the operating compression of the center pogo contact.
The central spring-loaded contact should operate within its approved working stroke after the two mating components reach their intended mechanical seating position.
Working stroke and total travel are different parameters. Working stroke defines the intended operating compression, while total travel represents the available mechanical movement of the spring-loaded contact.
Connector height, device-side interface position, housing tolerance and mating-surface variation should be evaluated together when defining the normal operating compression.
The pogo contact should provide electrical connection and controlled Z-axis compliance rather than act as the primary mechanical hard stop.
Charging-current capability cannot be determined from the diameter of the central pogo contact or the round connector size alone.
Power Source → Opposite-End Termination → Cable Conductors → Magnetic Cable Head → Center Contact + Confirmed Return Path → Device-Side Interface → PCB / Charging Circuit → Load
Vdrop = I × Rpath
Ploss = I² × Rpath
Cable conductor resistance, termination resistance, center-contact resistance, return-path resistance, mating condition, device-side PCB copper and temperature rise should be evaluated together before a current rating is released.
Continuous current and peak current should be defined separately where the charging system includes transient or intermittent operating conditions.
The circular magnetic head is only one part of the complete charging cable assembly.
Cable length, conductor count, wire gauge, conductor material, outer jacket, strain relief and opposite-end termination should be defined together with the electrical requirements of the device.
USB-A, USB-C, DC plug, terminal, bare wire or another termination should only be stated after the approved cable drawing confirms the actual configuration.
| Specification | Details |
|---|---|
| Product Type | 1 Pin Concentric Round Magnetic Charging Cable |
| Pogo Pin Count | 1 Central Spring-Loaded Contact |
| Primary Function | Charging / Power |
| Interface Shape | Round / Circular |
| Contact Geometry | Central Contact + Concentric Outer Ring |
| Outer Ring Electrical Function | To Be Confirmed |
| Return Path | Defined by Approved Wiring Diagram |
| Magnetic Function | Capture + Retention |
| Final Position / Alignment | Controlled by Mechanical Mating Geometry |
| Cable Length | Project-Specific |
| Opposite-End Termination | To Be Confirmed |
| Voltage | Project-Specific |
| Continuous Current | To Be Confirmed |
| Peak Current | To Be Confirmed |
| Current Capability | Validate Complete Conductive Path |
| Working Stroke | Defined by Approved Drawing |
| Total Travel | To Be Confirmed |
| Spring Force | Project-Specific |
| Magnetic Retention | Project-Specific |
| Material / Plating | To Be Confirmed |
| Cycle Life | To Be Confirmed |
| Operating Temperature | To Be Confirmed |
| IP Rating | Not Claimed Without Complete Assembly Validation |
CTP can review the complete one-pin concentric magnetic charging cable architecture around the customer’s electrical, cable and mechanical requirements.
Explore related Round Magnetic Cable Connectors for alternative circular magnetic cable architectures.
This concentric round magnetic charging cable can be evaluated for devices that require a compact detachable power interface with a circular mating geometry.
Final application suitability depends on the complete current path, return-path design, cable construction, mating geometry, charging requirements and environmental conditions.
Environmental capability should be validated for the complete charging cable and installed mating interface under defined test conditions.
Corrosion behavior, mating-cycle capability, cable bending life and operating-temperature capability depend on the exact contact materials, surface finish, cable construction and operating conditions.
A round or concentric mating face does not establish a waterproof rating. An IP rating should only be claimed when the complete mating assembly and sealing structure have been defined and tested.
It refers to the one central spring-loaded pogo contact visible in the circular interface. It does not automatically mean that the complete charging circuit uses only one conductive path.
The complete return path must be defined by the approved wiring design. The electrical function of the concentric outer ring or any other return structure should be confirmed before the charging architecture is released.
A concentric outer ring is visible, but its electrical function should not be assumed from appearance. Its function must be confirmed from the wiring diagram and approved mating-interface design.
Charging current is project-specific and must be validated across the complete conductive path, including the center contact, return path, cable conductors, terminations and device-side circuit.
This should not be assumed. Permitted rotation depends on the electrical function of the center contact and outer ring, polarity requirements and the approved mechanical design.
The magnetic structure primarily assists capture and retention. Final position, alignment and seating should be controlled by the mechanical mating geometry.
Working stroke is defined by the approved drawing and represents the intended operating compression. It should be distinguished from total mechanical travel.
Yes. Cable length, conductor construction and opposite-end termination can be defined according to the approved project requirements.
No IP rating should be assumed from the circular or concentric interface. Environmental protection depends on the complete mating and sealing structure and must be validated at assembly level.
Provide the center-contact function, outer-ring function, complete return path, voltage, continuous and peak current, cable length, wire gauge, opposite-end termination, working stroke, magnetic requirements and available 2D or 3D drawings.
CUSTOM CONCENTRIC MAGNETIC CHARGING CABLE DEVELOPMENT
Send CTP your center-contact and outer-ring functions, return-path design, voltage, continuous and peak current, cable length, wire gauge, opposite-end termination, working stroke, magnetic requirements and device-side drawings. Our engineering team can review the complete charging path before quotation and sample development. Request Custom Quote & Samples
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.
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.
Yes. Customization can cover geometry, contact layout, materials, cable construction, magnetic structure, sealing and appearance. Feasibility depends on the application and approved specification.
No. Current, voltage, resistance, temperature rise and ingress-protection claims apply only to the identified model and stated test conditions.
Timing is confirmed after the drawing, materials, tooling, sample quantity, validation scope and production requirements have been reviewed.
A reference product image is not enough to define a cable assembly. Confirm the following information before drawing, sampling or quotation review.
The exact project route depends on whether an existing product can be used, modified or requires a new cable assembly design.
Confirm product scope, Pin Map, cable length, termination, quantity and application conditions.
Match magnetic contacts to conductors, source-side wiring and device-side functions.
Confirm dimensions, outlet direction, cable construction and required sample configuration.
Review electrical, mechanical and environmental conditions before production approval.
Submit the magnetic-end structure, electrical functions, cable length, conductor requirements, opposite-end interface, installation space and available drawings for project review.
Review related cable assemblies by contact count, shape, termination and project supply scope.
