01
What Must Pass Through the Interface?
List power, ground, detection, identification, control and signal circuits before counting contacts.
CTP supplies custom custom magnetic pogo pin connectors for OEM and ODM device programs. Pin layout, geometry, materials, electrical requirements, sealing and.
Pin count is only the result of the electrical and structural requirements. Confirm the following four points before choosing a current product category.
List power, ground, detection, identification, control and signal circuits before counting contacts.
Confirm the allowable length, width, height, PCB position and mating direction.
A circular interface may suit projects that require rotational freedom or orientation-independent docking.
Select the Magnetic Cable Connector catalog when the required component must include a finished cable.
The former catalog grouped connectors into broad pin-count ranges. The current catalog separates individual pin counts so buyers can reach a more precise product page.
Start with 2 Pin for a basic two-contact interface or 3 Pin when an additional detection, identification or signal contact may be required. One-pin structures should be reviewed as a special project.
Review 4 Pin and 5 Pin categories when the interface needs power contacts plus additional signal, control, detection or identification channels.
Begin with the 6 Pin category when six defined contacts are required. Use the Multi-Pin category for higher contact counts, multi-row layouts or more complex channel allocation.
Select the Round category when the connector's circular geometry, mating orientation or device integration is more important than grouping it only by pin count.
First list every independent electrical connection. Then review whether any power or ground contacts must be separated, duplicated or reserved for future functions.
| Starting Category | Typical Selection Situation | Questions to Confirm | Current Catalog |
|---|---|---|---|
| 2 Pin | A basic interface with two independent electrical contacts. | Are extra detection, control or identification contacts required? | View 2 Pin → |
| 3 Pin | Two primary contacts plus one additional detection, control, ground or signal path. | What exact function is assigned to the third contact? | View 3 Pin → |
| 4 Pin | Power contacts combined with two additional channels or a four-contact circuit. | Which contacts carry power, ground, detection or signal? | View 4 Pin → |
| 5 Pin | A five-contact interface with additional control, identification or signal allocation. | Does the device need a reserved channel or separate signal ground? | View 5 Pin → |
| 6 Pin | Six defined contacts for a more complex power and signal interface. | Can the layout remain single-row, or is a denser structure required? | View 6 Pin → |
| Multi-Pin | Higher contact count, multi-channel requirements or high-density layouts. | Confirm pitch, row count, PCB area and all channel assignments. | View Multi-Pin → |
Two connectors may use the same number of contacts but require completely different structures because of mating direction, device shape and installation space.
Consider a linear layout when the available installation area is long and narrow, the mating direction is defined and the contacts can be arranged in one or more rows.
Browse by Pin Count →Consider a circular structure when the device geometry, rotational mating or central contact arrangement makes a round interface more suitable.
View Round Connectors →Consider a custom or multi-row arrangement when the required contact count cannot fit the available PCB area in a simple single-row structure.
View Multi-Pin Connectors →Early classification mistakes often create unnecessary redesign work later in the project.
The same pin count can support different circuit functions, shapes, pitches and mounting structures. Confirm contact allocation first.
Current capability depends on contact structure, material, contact allocation and thermal conditions, not only the total number of contacts.
A connector component and a finished cable assembly are different supply scopes. Cable length, wire and output interface must be considered separately.
Circular layouts affect mating orientation, device structure, PCB arrangement and mechanical positioning. They are not only a visual choice.
Connector dimensions must be reviewed together with housing tolerance, PCB position, compression distance and mating alignment.
Final protection depends on how the connector and the customer's device enclosure form a complete sealing structure.
Use the current catalog for product browsing. Return to this guide when the correct pin count or connector structure is not yet confirmed.
Send the required electrical functions, installation space, mating direction and available drawings. The information will be reviewed before routing the project to the appropriate magnetic connector category.