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Pin Map and Contact Functions
Define the function of each power, return, signal, control or detection contact.
The CTP 2–8 Pin Magnetic Pogo Pin Connector Series includes multiple single-row connector pairs for custom charging, power delivery, device detection and project-specific signal interfaces. The series contains different pin counts, housing lengths and optional mounting structures rather than one universal part number. Dimensions, Pin Map, electrical ratings, working stroke, magnetic retention and environmental performance are confirmed according to the selected configuration and customer device.
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 page presents a customizable 2–8 pin magnetic pogo pin connector series rather than one universal part number. The products shown include different pin counts, housing lengths and mounting structures. Each configuration requires its own drawing, Pin Map, electrical rating, working stroke, magnetic-force requirement and validation plan.
CTP develops custom magnetic pogo pin connector pairs for removable power, charging, detection and project-specific signal interfaces.
The series shown on this page includes connector pairs with 2 to 8 conductive contacts. Magnets may assist connector approach and retention, while spring-loaded contacts provide controlled compliance against the mating target.
Final electrical and mechanical performance depends on the selected connector geometry and the complete customer device. Pin count alone does not determine current, voltage, data protocol, magnetic force, cycle life or ingress protection.
| Pin Count | Example Project Allocation | Key Engineering Questions |
|---|---|---|
| 2 Pin | Power and return | Voltage, current, polarity and exposed-contact protection |
| 3 Pin | Power, return and detection or identification | Detection logic, contact sequence and power enable |
| 4 Pin | Power plus two project-specific signal paths | Pin Map, signal type, return path and electrical protection |
| 5 Pin | Power, detection and additional control or communication | Protocol, contact arrangement and partial-mating states |
| 6 Pin | Multi-function power and signal interface | Signal return, contact spacing and channel requirements |
| 7 Pin | Power, identification and multiple project-specific signals | Pin sequence, protection, PCB routing and target alignment |
| 8 Pin | Higher-contact-count custom device interface | Mechanical tolerance, current sharing, crosstalk and validation |
Important: The allocations above are examples only. A specific pin count does not automatically establish USB, UART, I2C, charging, video or another protocol. The final Pin Map must be defined by the customer circuit.
The main product image presents several connector structures rather than one identical housing with different pin counts.
Available or customizable structures may include:
The selected model should be confirmed using a dedicated 2D drawing and, where necessary, a 3D assembly model.
| Parameter | Series Definition |
|---|---|
| Product Type | Custom magnetic pogo pin connector pair |
| Pin Count | 2, 3, 4, 5, 6, 7 or 8 contacts |
| Pin Map | Project-specific power, return, detection, identification or signal allocation |
| Housing Structure | Varies by selected model; mounting ears may be available |
| Contact Arrangement | Spring-loaded pogo pin side with mating target side |
| Pin Pitch | Confirm from selected model drawing |
| Overall Dimensions | Confirm from selected pin count and housing structure |
| Working Stroke | Model-specific; evaluate minimum, nominal and maximum compression |
| Contact Force | Model-specific at a defined working stroke |
| Rated Voltage | Defined from the selected model and complete system |
| Continuous Current | Defined per contact and verified through voltage-drop and temperature-rise testing |
| Contact Resistance | Report with test current, target, stroke, sample state and measurement method |
| Magnetic Performance | Capture, seated retention and removal force should be specified separately |
| Mating Life | Model- and test-condition-specific |
| Surface Finish | Specify separately for plunger, barrel, termination and target contact |
| Ingress Protection | Applies only to a defined and tested connector or complete assembly |
| Salt-Spray Performance | State test method, exposure time, sample condition and acceptance criteria |
| Termination | PCB, FPC or wire integration according to the selected design |
List every required power and signal function before selecting the number of contacts.
Possible functions include:
Provide:
Provide:
Magnetic capture, seated retention and connector removal are different requirements.
The project should define:
Possible conditions include:
Magnets can assist connector capture, but the final mating position should be established by the housing, locating features and mechanical stops.
The complete tolerance stack may include:
The connector should be evaluated at minimum, nominal and maximum working stroke. Excessive compression can damage the pin, target, housing or PCB, while insufficient compression can cause intermittent contact.
A recommended project validation plan may include:
| Requirement | Recommended Evaluation |
|---|---|
| Contact Resistance | Measure at defined current, stroke, target and environmental condition |
| Voltage Drop | Measure the complete power path at maximum intended current |
| Temperature Rise | Evaluate contacts, terminations and surrounding housing |
| Working Stroke | Verify minimum, nominal and maximum assembled conditions |
| Magnetic Force | Measure capture, retention and release in the defined directions |
| Partial Mating | Test offset, tilted and one-contact-first conditions |
| Short Circuit | Evaluate conductive objects and adjacent-target bridging |
| Repeated Mating | Use project-defined cycles, stroke, speed and acceptance criteria |
| Powered Mating | Evaluate engagement and separation under the intended load where applicable |
| Contamination | Test representative dust, moisture, oil or cleaning residue |
| Environmental Protection | Test the defined connector or complete device assembly |
| Input | Information to Provide |
|---|---|
| Pin Count | Required number of power and signal contacts |
| Pin Map | Function of every contact |
| Electrical | Voltage, continuous current, peak current and signal type |
| Mechanical Space | Maximum length, width, height and pitch |
| Mating Structure | Approach direction, alignment and removal direction |
| Termination | PCB, FPC or wire connection |
| Magnetic Requirement | Capture, retention and release conditions |
| Environment | Temperature, moisture, dust, vibration and cleaning conditions |
| Validation | Life, resistance, temperature, ingress and other acceptance criteria |
| Project Files | 2D drawing, 3D model, PCB layout or device assembly |
| Commercial | Prototype quantity, expected annual volume and project stage |
No. This page presents a 2–8 pin connector series containing several pin counts and housing structures. The selected model must be confirmed by its own drawing and specification.
No. Electrical ratings depend on the contact construction, working stroke, target, termination, PCB routing and complete thermal environment.
They can provide project-specific power and signal paths. The actual protocol and data performance must be defined and validated for the complete channel.
No. Pin count alone does not establish USB compatibility. The controller, routing, protection and complete physical channel must support the required USB specification.
No. Any ingress-protection statement must identify the exact connector or complete assembly, mating state and test condition.
Capture force, seated retention and separation force should be measured separately in their defined directions using the complete connector assembly.
Customization can be reviewed according to the required Pin Map, available space, expected quantity, tooling requirement and validation scope.
Provide the Pin Map, voltage, current, available connector space, mating direction and any available 2D drawing, 3D model, PCB layout or device assembly file.
Submit your device model, Pin Map, electrical requirements, available installation space and expected project quantity through the Get Quote & Samples page .
CTP can review the connector pin count, contact layout, housing structure, working stroke, magnetic arrangement and PCB, FPC or wire termination. Final electrical ratings, protocol performance, mating life and environmental protection must be confirmed for the selected connector and complete customer device.
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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 →
