Magnetic Mating Interface
Confirm Pin count, contact allocation, magnet arrangement, connector shape, polarity control and mating direction.
This custom 4-pin magnetic pogo pin power and data cable combines a USB-C plug, a four-contact magnetic cable end and a matching PCB-mount connector for device integration. The four contacts can be assigned to power, ground and validated data, detection or control functions according to the approved Pin Map. Cable length, wire gauge, contact layout, magnetic retention, connector housing, strain relief and PCB termination can be customized for the project.
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.
Engineering Summary: This custom 4-pin magnetic pogo pin cable assembly combines a USB-C termination, a four-contact magnetic cable end and a matching PCB-mount connector. The contacts can be allocated to power, ground, data, detection or control functions according to the approved Pin Map. Cable construction, magnetic retention, housing and PCB integration should be confirmed as one complete electromechanical system.
This product is a complete magnetic power and data cable assembly rather than only a magnetic connector head. The assembly includes the USB-C plug, cable conductors, four-contact magnetic interface, connector housing and a matching device-side PCB connector.
The pogo pins provide spring contact pressure, while the magnetic structure assists connector capture and retention. Final orientation, working compression and mechanical stopping should still be controlled by the connector housing and device structure.
| Assembly Element | Engineering Function |
|---|---|
| USB-C plug | Connects the cable to an approved power source, host or project-specific interface |
| Cable conductors | Carry the assigned power, ground and signal functions |
| Four-contact magnetic interface | Provides four electrical paths between the cable and device |
| Magnetic structure | Assists initial capture and connector retention |
| Connector housing | Controls orientation, alignment and final seating |
| PCB-mount mating connector | Connects the magnetic interface to the customer device PCB |
The four contacts do not have one universal electrical definition. Their functions must be confirmed from the customer schematic and USB-C wiring before production.
| Example Architecture | Possible Contact Allocation |
|---|---|
| Power and data | Power, ground and two data contacts |
| Charging with detection | Power, ground, detection and identification |
| Parallel power paths | Two positive contacts and two return contacts |
| Project-specific interface | Four customer-defined power, signal or control functions |
These are planning examples only. The final Pin Map must follow the approved schematic and connector drawing.
Engineering Note: A USB-C plug and four magnetic contacts do not automatically establish USB data speed, USB Power Delivery or fast-charging compatibility. The internal USB-C wiring, contact allocation, PCB routing and complete cable channel must be validated.
| Specification | Product Definition |
|---|---|
| Product Type | Magnetic pogo pin power and data cable assembly |
| Pin Count | 4 Pin |
| Opposite End | USB-C |
| Device-Side Connector | PCB-mount four-contact mating connector |
| Pin Map | Project-specific |
| Cable Length | Customized according to installation requirements |
| Wire Gauge | Selected according to current, cable length and voltage-drop requirements |
| Rated Current / Voltage | Confirmed through complete current-path and thermal validation |
| Data Function | Confirmed through complete connector, cable and PCB channel testing |
| Contact Resistance | Measured at the defined working compression and test boundary |
| Magnetic Retention | Specified according to the device structure and release direction |
| Environmental Protection | Dependent on the complete connector and device sealing structure |
Electrical performance should be evaluated through the complete path from the USB-C plug and cable conductors to the magnetic contacts, device-side connector and PCB.
The project should define:
Where two contacts are used as a data pair, the complete cable, connector transition and PCB routing should be evaluated together. Pin count alone does not confirm a particular USB or communication standard.
Magnetic performance should be defined through capture, retention and release requirements rather than one isolated force value.
Stronger magnetic attraction is not automatically better. Excessive force may increase mating impact, removal force and pogo pin compression.
Yes, when the Pin Map, USB-C wiring and complete signal channel are designed and validated for the required function.
No. Supported functions depend on the internal wiring, electronics, contact allocation and complete cable-channel design.
Yes. PCB mounting, solder-tail structure, contact position, housing dimensions and installation features can be reviewed according to the device design.
Yes. Cable length, conductor gauge, jacket, shielding and strain relief can be selected according to the electrical and installation requirements.
No. Environmental protection depends on the cable end, device-side connector, PCB installation, sealing structure and complete tested assembly.
Submit the Pin Map, USB-C function, cable requirements and device-side PCB drawing through the Get Quote & Samples page .
CTP can review the four-contact Pin Map, USB-C wiring, cable construction, magnetic structure, housing and PCB-mount mating connector before prototype development. Final specifications should be confirmed in the approved drawing and validation plan.
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.
