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Pin Map and Contact Functions
Define the function of each power, return, signal, control or detection contact.
This custom 1-pin ultra-low-profile circular magnetic pogo pin connector is designed for space-limited wearable devices and compact electronic modules. It combines a central spring-loaded contact, circular magnetic housing and rear terminal structure in a miniature connector module. The contact function, profile height, terminal layout, working compression, spring force, magnetic retention, insulation structure and device installation can be customized according to the approved schematic, PCB layout and mechanical drawing.
Product specifications should be reviewed together with the customer device, PCB, electrical assignment and mechanical mating conditions.
Define the function of each power, return, signal, control or detection contact.
Provide voltage, continuous current, peak current and required signal conditions.
Provide available length, width, height, PCB area and required mating orientation.
Provide application, expected quantity, environment and customer validation requirements.
Review the product-specific description, technical parameters, contact arrangement, mechanical structure and project conditions below.
Engineering Summary: This custom 1-pin ultra-low-profile circular magnetic pogo pin connector is developed for compact devices where connector height and installation space are limited. The center contact, surrounding metal structure, terminal layout, working compression and device mounting must be defined together in the approved project drawing.
Unlike a complete magnetic charging cable, this product is a miniature connector module intended for integration into a PCB, wearable device housing or compact electronic assembly.
The term “1 Pin” refers to the central spring-loaded contact. It does not automatically confirm the total number of conductive paths, because the surrounding metal structure may also provide a return path, shielding, magnetic attraction or mechanical positioning.
| Assembly Element | Engineering Function |
|---|---|
| Central pogo pin | Provides one spring-loaded electrical contact path |
| Black insulating ring | Separates the center contact from the surrounding structure |
| Circular metal housing | Provides the compact outer structure and project-defined magnetic function |
| Rear terminals | Connect the module to the PCB, wire or internal device circuit |
| Low-profile geometry | Reduces the required installation height in compact devices |
The connector should be evaluated as part of the complete device interface. The project must confirm the center-contact function, return path, installation height, working compression and mating structure.
Engineering Note: A published current rating must be validated across the complete path, including the center contact, return path, rear terminals, PCB or wire, matching connector and device load.
| Specification | Product Definition |
|---|---|
| Product Type | Ultra-low-profile circular magnetic pogo pin connector module |
| Pogo Pin Count | 1 central spring-loaded contact |
| Connector Shape | Round / circular |
| Profile Height | Confirmed according to the approved mechanical drawing |
| Outer Housing Function | Confirmed according to the electrical design |
| Mounting Method | PCB, module or custom device integration |
| Current and Voltage | Confirmed through complete-path validation |
| Magnetic Retention | Defined according to mating and release direction |
It may refer to the exposed height, installed height, connector body thickness or another mechanical dimension. The exact definition must be confirmed in the approved drawing.
Not necessarily. One Pin describes the central pogo contact. The surrounding metal structure may provide another electrical path, but this must be confirmed from the schematic.
Yes. The connector diameter, installed height, terminal layout and mating structure can be customized for compact wearable or miniature device designs.
No. Environmental protection depends on the connector structure, device enclosure, sealing method and complete tested installation state.
Submit your schematic, PCB layout, available installation height and mating-interface drawing through the Get Quote & Samples page.
CTP can review the low-profile structure, contact path, rear terminals, working compression and device integration before prototype development.
Submit your Pin Map, electrical requirements, available space, mating structure and project quantity for connector selection or custom development review.
Use the following engineering guides to compare contact count, contact allocation and connector layout before confirming the final product or customized design.
Review the complete selection path from contact count and electrical functions to connector shape.
View Main Guide →Compare one-contact special structures, complete two-contact circuits and third-contact functions.
Compare Low-Pin Designs →Determine whether four contacts are sufficient or whether a defined fifth electrical path is required.
Compare 4 Pin and 5 Pin →Calculate the contact budget and compare six-contact, multi-row and customized contact-array structures.
Compare High-Pin Designs →
