Custom 2-Pin Round Magnetic Pogo Pin Data Cable

Engineering Summary: This custom 2-pin round magnetic pogo pin data cable combines a circular two-contact magnetic interface with an opposite-end plug. The contacts can be allocated to a validated signal and reference path, detection circuit, low-voltage power circuit or another project-specific function. The wiring, cable construction, magnetic retention, connector housing and device-side mating interface should be confirmed together in the approved project drawing.

This product is a complete magnetic cable assembly rather than only a magnetic connector head. It includes a round two-contact magnetic interface, internal conductors, cable jacket, connector housing, strain relief and an opposite-end termination.

The pogo pin contacts provide controlled electrical contact pressure, while the magnetic structure assists initial capture and retention. Final orientation, working compression and mechanical stopping should be controlled by the connector housing and mating-device structure.

2-Pin Round Magnetic Cable Structure

Assembly Element	Engineering Function
Two-contact magnetic interface	Provides two project-defined electrical contact paths
Round connector housing	Controls contact position, orientation and final seating
Magnetic structure	Assists connector capture and retention
Cable conductors	Carry the approved signal, reference, detection or power functions
Opposite-end plug	Connects the cable to the customer PCB, module or host interface
Strain relief	Reduces bending and pulling loads at the cable exits

Two-Contact Electrical Definition

Two physical contacts do not have one universal electrical function. The contact allocation must be defined from the customer schematic and internal cable wiring.

Possible Architecture	Contact Allocation	Required Validation
Data or signal interface	Signal and reference return	Protocol, signal level, data rate and complete-channel testing
Detection interface	Detection signal and reference return	Logic level and valid-connection recognition
Power interface	Positive power and return	Polarity, voltage drop, temperature rise and protection
Project-specific interface	Two customer-defined electrical functions	Approved schematic and wiring diagram

Engineering Note: Two contacts do not automatically provide simultaneous charging and standard data transmission. Any combined power-and-data function requires a defined circuit architecture and application-level validation.

Product Specification Framework

Specification	Product Definition
Product Type	Round magnetic pogo pin data cable assembly
Pin Count	2 Pin
Connector Shape	Round magnetic interface
Contact Allocation	Project-specific
Opposite-End Termination	Confirmed according to the approved drawing
Cable Length	Customized according to installation requirements
Wire Gauge	Selected according to signal, current and cable-length requirements
Data Function	Confirmed through complete cable and device-channel validation
Rated Current / Voltage	Confirmed through complete current-path and thermal validation
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

Signal and Cable Design

Data performance should be evaluated through the complete path, including the opposite-end plug, cable conductors, magnetic contacts, mating targets and device PCB.

The project should define:

• Contact allocation and polarity
• Signal type and required data rate
• Reference or return path
• Logic level and connected electronics
• Cable length, conductor size and shielding requirements
• Maximum permitted voltage drop and signal degradation
• Electrical behavior during partial mating and separation

The presence of two contacts does not establish USB, UART, I2C, CAN or another protocol. Protocol compatibility should only be published after the complete electrical channel has been validated.

Magnetic and Mechanical Integration

Magnetic performance should be defined through capture, retention and release requirements rather than one isolated force value.

• Capture: How the round cable end approaches and aligns with the device
• Retention: How the connector remains seated during operation
• Release: How it separates under axial, side or peel loading
• Working compression: How far the two contacts compress after seating

Excessive magnetic attraction may increase mating impact, removal force and pogo pin compression. Magnetic force should be selected together with the housing and intended user operation.

Customization Options

• Two-contact electrical allocation
• Round connector diameter and installed height
• Cable length, conductor gauge and jacket material
• Signal, detection or power function
• Opposite-end connector or terminal type
• Magnetic capture, retention and release behavior
• Housing, overmolding and strain relief
• Device-side mating contact and installation structure

Frequently Asked Questions

Can this 2-pin magnetic cable transmit data?

Yes, when one contact is used for the signal and the other provides the required reference path, and when the complete cable and device channel have been validated.

Can it charge and transmit data at the same time?

Not automatically. Simultaneous power and data requires a project-specific circuit or communication architecture and should not be assumed from the two-contact structure alone.

Does the opposite-end plug define the communication protocol?

No. The physical plug shape alone does not confirm the implemented protocol. Internal wiring and connected electronics must also be reviewed.

Can the cable length and connector housing be customized?

Yes. Cable length, conductor size, jacket, connector dimensions, magnetic retention and strain relief can be customized for the application.

Is this cable automatically waterproof?

No. Environmental protection depends on the connector housing, cable entry, device-side installation and complete tested assembly.

Start Your 2-Pin Magnetic Data Cable Project

Submit your wiring diagram, signal requirements, cable dimensions and device-side drawing through the Get Quote & Samples page .

CTP can review the two-contact electrical definition, cable construction, magnetic structure, round housing and device-side mating interface before prototype development. Final specifications should be confirmed in the approved drawing and validation plan.