01
Pin Map and Contact Functions
Define the function of each power, return, signal, control or detection contact.
CTP 5 Pin Magnetic Pogo Pin Connector features five inline spring-loaded contacts, magnetic structures positioned on both sides of the contact row, an insulated housing and a mounting base with through-holes. The five contacts can be assigned to power, return, detection, identification, control or project-specific signal functions according to the customer Pin Map. Final dimensions, PCB termination, working stroke, current, voltage, magnetic retention, mating life and environmental performance must be confirmed using the approved connector drawing and complete customer assembly.
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: The CTP 5 Pin Magnetic Pogo Pin Connector combines five inline spring-loaded contacts, side magnetic structures, an insulated housing and a mounting base with through-holes. The connector can provide project-specific power, detection, identification, control or signal contact paths. Final electrical ratings, working stroke, mating structure, magnetic retention, cycle life and environmental performance must be confirmed using the approved drawing and complete customer assembly.
This 5 pin magnetic pogo pin connector is designed for devices that require a removable electrical interface with more functions than a basic two-pin charging connection.
The product shown contains five spring-loaded pogo pin contacts arranged in a single row. Magnetic structures positioned beside the contact row may assist connector approach and seated retention.
The wider mounting base includes through-holes that can support project-specific screw, locating-pin, rivet or enclosure installation. Their exact dimensions and mechanical function must be confirmed using the approved product drawing.
A compatible mating target is required to complete the electrical interface. The supplied scope should clearly identify whether the project includes the pogo pin side only, the target side only or a complete mating pair.
| Connector Element | Visible Structure | Engineering Requirement |
|---|---|---|
| Contact Count | Five electrical contacts | Define the function and electrical state of every contact |
| Contact Arrangement | Single-row inline layout | Confirm contact pitch and mating-target dimensions |
| Pogo Pin Side | Five spring-loaded contacts | Define free height, working stroke and contact force |
| Magnetic Structure | Magnetic areas positioned beside the contact row | Define capture, seated retention and separation force |
| Insulating Housing | Black molded contact support structure | Confirm material, isolation distance and temperature requirement |
| Mounting Base | Extended base with through-holes | Confirm hole diameter, spacing and mounting method |
| Termination | Board-side structure visible below the housing | Confirm PCB, FPC, solder or project-specific termination by drawing |
Five conductive contacts do not represent one universal electrical assignment. The correct Pin Map depends on the host device, accessory and power architecture.
Possible contact functions include:
Power return, signal reference, metal housing and shielding should not automatically be treated as the same electrical node.
| Interface Architecture | Example Contact Allocation | Primary Engineering Review |
|---|---|---|
| Charging and detection | Power, return, detection, identification and control | Power sequence, wrong-accessory response and partial mating |
| Power and low-speed signal | Power pair plus three project-specific signal contacts | Logic voltage, reference path and electrical protection |
| Parallel power configuration | Two positive contacts, two return contacts and one detection contact | Current sharing, voltage drop and individual contact temperature |
| Accessory identification | Power, return, identification, detection and control | Identification tolerance and power-enable logic |
| Service or test interface | Power, return and three diagnostic or programming contacts | Fixture alignment, access control and connection sequence |
These are examples only. The final Pin Map must be defined from the actual customer circuit.
A five-contact connector provides five conductive paths, but the number of contacts alone does not prove USB, UART, I2C or another communication capability.
The complete communication path may include:
Host Controller → Host PCB → Protection Components → Pogo Pin Contacts → Mating Targets → Accessory PCB → Accessory Controller
Communication performance depends on:
Low DC contact resistance does not independently prove communication performance.
The mounting base can help locate and support the connector inside a customer device. The installation method must be defined before tooling or PCB layout is finalized.
The drawing should identify:
The mounting base should carry structural loads whenever possible. Pogo pins, mating targets and solder joints should not carry the entire load of a removable cable, dock or accessory.
A preferred structural load path is:
Accessory → Mounting Base or Housing Support → Customer Device Enclosure
rather than:
Accessory → Magnets → Pogo Pins → Targets → PCB or Solder Joints
Magnetic attraction can assist the two connector sides during approach, but magnets should not be the only features controlling the final contact position.
| Interface Function | Recommended Control |
|---|---|
| Initial Capture | Magnet arrangement and approach geometry |
| Orientation Control | Housing shape, keyed features and magnetic polarity |
| Final Alignment | Housing datums, locating features and mating surfaces |
| Pogo Pin Compression | Mechanical stops and complete dimensional tolerance stack |
| Seated Retention | Magnets and customer-device support structure |
| Connector Removal | Defined release direction and separation-force requirement |
Initial capture, seated retention and separation force should be specified and measured separately because they describe different connector behaviours.
The spring-loaded contacts require controlled compression against a mating target. The connector should not be designed around pogo pin free height alone.
A simplified working-stroke calculation is:
S = Hfree - Hseated
where:
The tolerance calculation may include:
| Working-Stroke Condition | Possible Result |
|---|---|
| Insufficient Compression | Intermittent contact, unstable detection or resistance variation |
| Approved Working Stroke | Intended contact force and electrical condition |
| Excessive Compression | Spring bottoming, target indentation, housing load or PCB stress |
| Unequal Compression | Different contact resistance and uneven current distribution |
A specific 5 pin connector should not be assigned a broad universal range such as 1–30 A or 5–60 V without identifying the exact model, contact allocation and test configuration.
Electrical capability depends on:
A simplified complete-path resistance is:
Rpath = Rhost-PCB + Rtermination1 + Rpogo + Rinterface + Rtarget + Raccessory-PCB
The voltage drop is:
Vdrop = I × Rpath
The resistive power loss is:
Ploss = I² × Rpath
Current capability should be confirmed through complete-path voltage-drop and temperature-rise testing.
Some five-contact interfaces may use two contacts in parallel for positive power or return.
Parallel contacts may not carry equal current because of:
Individual contact current and temperature should be evaluated at the maximum intended electrical load.
Magnetic attraction may hold the mating parts close together before all five contacts reach their approved working stroke.
| Partial-Mating Condition | Possible Risk | Required Review |
|---|---|---|
| One Side Contacts First | Unexpected power or signal sequence | Approach angle and contact-height tolerance |
| Laterally Offset Mating | A pogo pin reaches an adjacent target | Contact pitch, target width and maximum credible offset |
| Magnetically Retained but Not Seated | False detection or unstable power | Independent full-seating verification |
| Wrong Orientation | Incorrect Pin Map or polarity state | Mechanical coding and magnetic polarity |
| Conductive Contamination | Short circuit or leakage between contacts | Power control and foreign-object protection |
| Removal Under Load | Transient voltage, arcing or communication interruption | Power-disable sequence and powered-endurance testing |
The product image does not independently prove an IP54, IP65 or IP67 rating. Ingress protection must apply to a defined and tested connector or complete customer enclosure.
The protection boundary may include:
Waterproof, salt-spray and corrosion statements should identify the exact sample, test method, exposure condition and acceptance criteria.
| Parameter | Product Definition |
|---|---|
| Product Type | 5 pin magnetic pogo pin connector with mounting base |
| Contact Count | Five spring-loaded electrical contacts |
| Contact Arrangement | Single-row inline layout |
| Magnetic Structure | Side magnetic structures for project-specific capture and retention |
| Mounting Structure | Extended base with through-holes |
| Pin Map | Project-specific power, return, detection, identification and signal allocation |
| Overall Dimensions | Confirm using the approved product drawing |
| Contact Pitch | Confirm using the approved product drawing |
| Mounting-Hole Dimensions | Confirm diameter, spacing and fixing method by drawing |
| Termination | PCB, FPC, solder or project-specific termination |
| Working Stroke | Confirm minimum, nominal and maximum pogo pin compression |
| Contact Force | Report at a defined working stroke |
| Voltage | Model- and circuit-specific |
| Continuous Current | Confirm per contact through voltage-drop and temperature-rise testing |
| Contact Resistance | Report with test current, stroke, target and measurement method |
| Magnetic Performance | Capture, seated retention and separation force are specified separately |
| Mating Life | Defined by working stroke, load, target and acceptance criteria |
| Contact Finish | Confirm separately for pogo pins, mating targets and termination |
| Ingress Protection | Applies only to a defined and tested connector or complete device |
| Application | Possible Connector Role | Primary Engineering Focus |
|---|---|---|
| Smart-Home Equipment | Charging, docking, detection or removable module interface | Repeated mating, exposed contacts and cleaning |
| Portable Electronics | Power, identification and project-specific signal connection | Connector retention, Pin Map and removal direction |
| Charging Dock | Power, return, detection, identification and control | Alignment, power sequence and partial mating |
| Industrial Handheld Device | Charging, control or service interface | Mounting, vibration and contact stability |
| Detachable Electronic Module | Power and multiple project-specific control paths | Mechanical support and mating sequence |
| Test or Calibration Fixture | Power, programming or diagnostic connection | Fixture repeatability and contact maintenance |
These applications are examples. Final suitability depends on the Pin Map, electrical load, mechanical assembly and environmental conditions.
| Requirement | Recommended Evaluation |
|---|---|
| Pin Map | Confirm the function and electrical state of all five contacts |
| Dimensions and Pitch | Verify contact pitch, target positions and overall dimensions |
| Mounting Base | Verify hole diameter, spacing, fixing method and housing datums |
| Termination | Verify PCB, FPC, solder or other connection method |
| Working Stroke | Verify minimum, nominal and maximum compression |
| Contact Resistance | Measure with defined current, target, stroke and sample condition |
| Voltage Drop | Measure the complete electrical path at intended current |
| Temperature Rise | Evaluate individual contacts, termination, PCB and housing |
| Parallel Current Sharing | Measure individual contact current and temperature where applicable |
| Magnetic Capture | Evaluate connector approach and orientation behaviour |
| Retention and Release | Measure force in the intended use and removal directions |
| Partial Mating | Test tilted, offset and retained-but-unseated states |
| Short Circuit | Evaluate moisture, metal objects and adjacent-contact bridging |
| Mechanical Endurance | Use defined stroke, speed, target and acceptance criteria |
| Powered Endurance | Evaluate mating and separation under the intended electrical state |
| Environmental Exposure | Test representative moisture, dust, vibration and cleaning conditions |
| Input | Information to Provide |
|---|---|
| Pin Map | Function of all five contacts |
| Electrical Conditions | Voltage, continuous current, peak current and signal type |
| Mechanical Space | Maximum length, width, height and restricted regions |
| Mounting Method | Screw, locating pin, rivet or customer-defined structure |
| Contact Pitch | Required pitch and mating-target dimensions |
| Mating Direction | Approach, final seating and removal direction |
| Working Stroke | Minimum, nominal and maximum pogo pin compression |
| Termination | PCB, FPC, solder or project-specific connection |
| Magnetic Requirements | Capture, seated retention and separation conditions |
| Environment | Temperature, humidity, dust, vibration and cleaning exposure |
| Validation | Resistance, temperature rise, mating life and environmental criteria |
| Project Files | 2D drawing, 3D model, schematic, PCB layout or device assembly |
| Commercial | Prototype quantity, annual forecast and project stage |
The main image clearly shows the spring-loaded pogo pin side. The complete supply scope, including any mating target side, should be confirmed in the quotation and approved drawing.
The contacts can be assigned to project-specific power, return, detection, identification, control or signal functions according to the customer Pin Map.
No. USB or another data protocol requires a compatible controller, PCB routing, protection structure and complete connector-channel validation.
No universal rating should be assumed. Current and voltage depend on the contact structure, Pin Map, working stroke, termination, PCB routing and thermal environment.
They may support screws, locating pins, rivets or another project-specific fixing method. Their exact dimensions and function must be defined by the approved drawing.
No. An ingress-protection rating must apply to a defined and tested connector or complete customer enclosure under stated conditions.
Initial capture, seated retention and separation force should be specified and measured separately in their defined directions.
Customization can be reviewed according to the Pin Map, installation space, mounting method, tooling feasibility, project quantity and validation scope.
Provide the five-contact Pin Map, voltage, current, available space, mounting method, working stroke, mating-target structure and available drawings.
Review additional custom magnetic connector components for different contact counts and mechanical structures.
Submit the Pin Map, electrical conditions, mounting requirements and available drawings through the Get Quote & Samples page .
CTP can review the five-contact layout, pogo pin working stroke, mating-target structure, magnetic arrangement, mounting base and PCB, FPC or solder termination. Final electrical ratings, signal performance, mating life, environmental protection and complete device performance must be confirmed through approved drawings and project-specific validation.
This product page presents a CTP magnetic connector configuration for engineering reference. Final dimensions, electrical ratings, materials, magnet structure, sealing level and reliability targets are not universal values; they are confirmed against the approved drawing, installation condition and model-specific validation plan.
CTP reviews the application and prepares a drawing or specification for approval before sample production. Test scope, acceptance criteria and report format should identify the model, sample status, method, conditions, result and review date.
Yes. Customization can cover geometry, contact layout, materials, cable construction, magnetic structure, sealing and appearance. Feasibility depends on the application and approved specification.
No. Current, voltage, resistance, temperature rise and ingress-protection claims apply only to the identified model and stated test conditions.
Timing is confirmed after the drawing, materials, tooling, sample quantity, validation scope and production requirements have been reviewed.
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 →
