Magnetic Mating Interface
Confirm Pin count, contact allocation, magnet arrangement, connector shape, polarity control and mating direction.
A custom 1 pin magnetic charging cable with a compact round head, central electrical contact and concentric mating structure. The electrical function of the outer ring and complete return path must be defined by the approved wiring diagram. Voltage, current capability, cable construction, contact travel, opposite-end termination and magnetic retention 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 magnetic charging cable is a complete cable assembly with a compact round charging head, one visible central electrical contact and a concentric mating structure.
The term “1 Pin” identifies the central contact count but does not by itself define the complete charging circuit. The electrical function of the visible outer ring and the complete return path must be defined by the approved wiring diagram.
Magnets primarily assist capture and retention during mating. Final position, alignment and seating should be established by the concentric housing and mechanical mating geometry rather than magnetic attraction alone.
The visible charging head uses a circular mating face with one central contact surrounded by a concentric ring structure.
This architecture can be evaluated for compact devices where a round detachable charging interface and limited external connector area are required.
Pin Count One central electrical contact
Interface Shape Round / circular
Mating Geometry Concentric center-contact architecture
Primary Function Project-defined charging interface
A charging system requires a complete conductive loop. One visible center contact therefore does not by itself define the complete electrical path.
The approved wiring diagram should identify the electrical function of the central contact, the concentric outer ring and any other conductive structure used to complete the circuit.
If the outer ring is used as the return path, its material, surface finish, cable connection, interface resistance and mating geometry should be included in the complete electrical validation.
If the outer ring is not electrically active, another defined return path is required.
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 two mating components during approach and helps retain the charging interface after engagement.
Capture force, retention force, separation force and peel force describe different mechanical conditions. A single magnetic-force value should not be used without defining the test direction and mating condition.
Final position and alignment should be controlled by the concentric housing geometry, mating surfaces and mechanical datums.
Stronger magnetic retention is not automatically better. The required retention and release behavior should be selected according to the device mass, cable direction, enclosure strength and expected handling condition.
The product image confirms one central electrical contact position, but the internal spring-loaded structure cannot be determined from appearance alone.
If the central contact uses a pogo pin, the approved drawing should define working stroke, total travel, spring force and the installed compression condition.
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.
The mechanical housing should establish the final seated position. A spring contact should provide electrical contact and controlled compliance rather than act as the primary mechanical hard stop.
Charging-current capability cannot be determined from the center-contact diameter or one-pin description alone.
Power Source → Opposite-End Termination → Cable Conductors → Round Magnetic Charging Head → Center Contact + Confirmed Return Path → Device-Side Interface → PCB / Charging Circuit → Battery / Load
Vdrop = I × Rpath
Ploss = I² × Rpath
Cable length, conductor gauge, source termination resistance, center-contact resistance, return-path resistance, device-side PCB copper, mating condition and temperature rise should be evaluated together before a continuous-current rating is released.
Continuous current and peak current should be defined separately where the application includes transient or intermittent loading.
The round magnetic charging head is only one part of the complete cable assembly.
Cable length, conductor count, wire gauge, conductor material, jacket construction, strain relief and opposite-end termination should be selected according to the electrical and mechanical requirements of the finished product.
USB-A, USB-C, DC plug, bare wire, terminals or another custom interface should only be stated after the approved cable drawing confirms the actual configuration.
The compact concentric round interface can be evaluated for electronic products that require a detachable charging cable within a limited connector area.
If the intended application is a micro projector, the charging voltage, continuous current, device-side geometry and thermal conditions should be validated for the specific projector design.
Corrosion resistance, mating-cycle capability, cable bending life and operating-temperature capability depend on the actual materials, plating, cable construction and project conditions.
A round housing or recessed mating geometry does not establish a waterproof rating.
An IP rating should only be stated after the complete mated assembly, device enclosure, sealing structure and test configuration have been defined and validated.
| Specification | Details |
|---|---|
| Product Type | 1 Pin Concentric Round Magnetic Charging Cable |
| Pin Count | 1 Pin |
| Primary Function | Charging |
| Interface Shape | Round / Circular |
| Mating Geometry | Concentric Center-Contact Interface |
| Center Contact | One Visible Central Contact |
| Center Contact Type | To Be Confirmed |
| 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 | To Be Confirmed |
| Total Travel | To Be Confirmed |
| Spring Force | To Be Confirmed |
| Magnetic Retention | Project-Specific |
| Separation / Peel Behavior | Project-Specific |
| Male / Female Definition | To Be Confirmed |
| Material / Plating | To Be Confirmed |
| Cycle Life | To Be Confirmed |
| Operating Temperature | To Be Confirmed |
| IP Rating | To Be Confirmed at Complete Assembly Level |
CTP can review the complete one-pin concentric magnetic charging cable around the customer’s electrical, cable and mechanical requirements.
It is a magnetic charging cable assembly with one visible central electrical contact and a concentric round mating structure.
The complete return path must be defined by the approved wiring diagram. The function of the outer ring or any other conductive return structure should be confirmed before release.
The outer ring is visible, but its electrical function cannot be confirmed from appearance alone. The approved wiring and mechanical drawings should define its function.
Voltage and current are project-specific. Current capability must be validated through the complete conductive path, including the cable, center contact, confirmed return path, device-side interface and charging circuit.
Electrical ratings must correspond to one approved cable and mating configuration. Cable gauge, contact resistance, return-path resistance, PCB design and temperature rise must be validated together.
The image confirms one central contact position, but the internal spring-loaded structure, working stroke and total travel should be confirmed from the contact drawing.
It can be evaluated for compact projector applications when the electrical rating, charging path, connector dimensions and device-side mating geometry match the approved projector design.
Magnets primarily assist capture and retention. Final alignment and seating should be controlled by the mechanical mating geometry.
Provide the center-contact function, outer-ring function, complete return path, voltage, continuous and peak current, cable length, wire gauge, opposite-end termination, mating dimensions, magnetic requirements and available 2D or 3D drawings.
CUSTOM CONCENTRIC MAGNETIC CHARGING CABLE DEVELOPMENT
Send CTP your center-contact and outer-ring functions, complete return-path design, voltage, continuous and peak current, cable length, wire gauge, opposite-end termination, mating dimensions, contact requirements, magnetic retention requirements and device-side drawings. Our engineering team can review the complete charging interface 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.
