01
Pin Map and Contact Functions
Define the function of each power, return, signal, control or detection contact.
CTP 5 Pin Round High Temperature Magnetic Pogo Pin Connector Pair is designed for custom electronic equipment where the connector may be exposed to elevated operating temperatures or repeated thermal cycling. The round interface combines five spring-loaded contacts with magnetic mating and a project-specific sealing structure. The five contacts can be assigned to power, return, detection, identification or control functions according to the customer Pin Map. Continuous operating temperature, current, voltage, working stroke, magnetic retention, mating life and environmental performance must be confirmed for the selected materials 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 Round High Temperature Magnetic Pogo Pin Connector Pair is intended for custom electronic equipment where the connector may be exposed to elevated temperatures or repeated thermal cycling. The round interface combines five spring-loaded contacts with magnet-assisted mating and a project-specific sealing structure. Continuous operating temperature, electrical ratings, working stroke, magnetic retention, mating life and environmental performance must be confirmed for the selected materials and complete customer assembly.
This 5 pin high temperature magnetic pogo pin connector is designed for applications where a conventional magnetic connector must continue to operate reliably while the surrounding equipment experiences elevated temperatures.
The connector uses five electrical contact positions in a round magnetic mating structure. One side contains spring-loaded pogo pin contacts, while the opposing side provides the corresponding mating interface.
The connector can be developed for power, charging, detection, identification, control or project-specific signal functions according to the customer Pin Map.
“High temperature” should not be treated as a generic material claim. The required continuous operating temperature, short-duration exposure, thermal-cycle profile and connector electrical load must be defined before the product configuration is approved.
A high-temperature magnetic pogo pin connector must be evaluated as a complete electromechanical assembly rather than by looking only at the pogo pin material.
Temperature can affect:
The approved temperature rating should therefore apply to the complete connector configuration and its defined operating condition.
| Thermal Requirement | Definition Required | Why It Matters |
|---|---|---|
| Ambient Temperature | Temperature of the surrounding air or enclosure | Determines the connector starting thermal condition |
| Continuous Operating Temperature | Maximum temperature during normal long-duration operation | Affects housing, spring, magnet and sealing-material selection |
| Short-Term Exposure | Maximum temperature and exposure duration | May be higher than the normal continuous operating condition |
| Thermal Cycling | Minimum temperature, maximum temperature, dwell time and cycle count | Evaluates expansion, contraction and interface fatigue |
| Internal Self-Heating | Temperature rise caused by electrical current | Contact temperature may exceed ambient temperature |
| Nearby Heat Source | Distance from heater, motor, lamp, battery or hot surface | Local connector temperature may differ from enclosure temperature |
Current capability cannot be separated from operating temperature. Electrical resistance in the complete power path produces additional heat, which is added to the surrounding thermal environment.
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
For this reason, a current rating measured at room temperature should not automatically be assumed to apply at the maximum project temperature.
The validation should define:
The five electrical contacts can be assigned differently depending on the customer device.
| Possible Function | Engineering Requirement |
|---|---|
| Power | Define operating voltage, continuous current and peak current |
| Power Return | Define return-path capacity and PCB routing |
| Detection | Define whether detection represents approach or full seating |
| Identification | Define resistor, analog or digital identification method |
| Control or Signal | Define signal voltage, reference path and fault condition |
| Architecture | Example Contact Allocation | Primary Review |
|---|---|---|
| Power and Detection | Power, return, detection, identification and control | Power-enable sequence and partial mating |
| Parallel Power | Two positive contacts, two return contacts and one detection contact | Current sharing and temperature rise |
| Power and Control | Power pair plus three project-specific control contacts | Logic voltage, signal reference and fault protection |
| Thermal Equipment Interface | Power, return, temperature detection and control contacts | Thermal-state monitoring and safe disconnection |
These configurations are examples only. The actual Pin Map must be developed according to the customer circuit.
The circular connector geometry can support compact installation and magnet-assisted attachment in devices where a rectangular connector is not preferred.
The magnetic structure may assist initial capture and seated retention, but magnets should not independently determine the final electrical position.
| Interface Function | Recommended Control |
|---|---|
| Initial Capture | Magnet arrangement and approach geometry |
| Orientation Control | Housing features, mating geometry and magnetic polarity |
| Final Alignment | Mechanical datums and mating surfaces |
| Pogo Pin Compression | Mechanical stop and dimensional stack |
| Retention | Magnetic structure and customer mechanical support |
| Removal | Defined release direction and separation-force requirement |
Magnetic retention should be reviewed across the intended operating temperature range rather than measured only at room temperature.
The engineering review should consider:
Capture, seated retention and separation force should be measured separately because they represent different mating behaviours.
Spring-loaded contacts require a defined working stroke to maintain stable contact force.
A simplified working-stroke relationship is:
S = Hfree - Hseated
At elevated temperatures, the complete dimensional stack may change because different materials expand at different rates.
The tolerance analysis should include:
| Stroke Condition | Possible Result |
|---|---|
| Insufficient Compression | Intermittent electrical contact or increased resistance |
| Approved Working Stroke | Intended spring force and electrical contact condition |
| Excessive Compression | Spring bottoming, target damage or excessive housing load |
| Thermally Shifted Compression | Working stroke moves outside the approved range at temperature |
A high-temperature connector requires the insulating and structural materials to remain dimensionally and electrically suitable at the defined operating temperature.
Material selection should consider:
The final housing material should therefore be confirmed through the approved bill of materials rather than inferred from product appearance.
The visible sealing structure can form part of an environmental protection system, but high temperature may change gasket hardness, compression and long-term sealing behaviour.
The sealing review should consider:
An IP rating must apply to a defined and tested connector or complete customer assembly. The presence of a sealing ring alone does not establish IP54, IP65 or another ingress-protection level.
| Validation Item | Recommended Evaluation |
|---|---|
| Continuous Temperature Exposure | Operate or condition the connector at the defined project temperature |
| Thermal Cycling | Cycle between defined minimum and maximum temperatures |
| Contact Resistance | Measure before, during where applicable, and after thermal exposure |
| Voltage Drop | Evaluate the complete path at the intended electrical load |
| Temperature Rise | Measure connector self-heating above the ambient condition |
| Working Stroke | Confirm compression remains within the approved range |
| Contact Force | Evaluate spring-force retention after thermal aging |
| Magnetic Retention | Measure capture and separation force across the temperature range |
| Housing Stability | Inspect deformation, cracking and dimensional changes |
| Seal Condition | Evaluate compression and leakage after thermal exposure |
| Mechanical Endurance | Perform mating-cycle testing under defined thermal conditions |
| Powered Endurance | Evaluate repeated mating or separation under the intended electrical state |
| Parameter | Product Definition |
|---|---|
| Product Type | 5 pin round high temperature magnetic pogo pin connector pair |
| Pin Count | 5 electrical contacts |
| Connector Shape | Round magnetic mating interface |
| Pin Map | Project-specific power, return, detection, identification or control functions |
| Operating Temperature | Confirm continuous and short-duration requirements by project |
| Thermal Cycling | Define minimum temperature, maximum temperature and cycle profile |
| Overall Dimensions | Confirm using the approved product drawing |
| Working Stroke | Confirm minimum, nominal and maximum pogo pin compression |
| Contact Force | Report at the defined working stroke and temperature condition |
| Voltage | Model- and circuit-specific |
| Continuous Current | Confirm through voltage-drop and temperature-rise testing |
| Contact Resistance | Report with test current, stroke, target and temperature condition |
| Magnetic Performance | Confirm capture, retention and separation force across temperature |
| Mating Life | Define stroke, electrical load, temperature and acceptance criteria |
| Ingress Protection | Applies only to a defined and tested connector or complete device |
| Application | Possible Connector Role | Primary Engineering Focus |
|---|---|---|
| Heating Appliances | Power, detection or removable module interface | Continuous temperature and self-heating |
| Personal Care Equipment | Charging, power or accessory interface | Surface temperature, moisture and repeated mating |
| Massage and Therapy Equipment | Power or control connection near heating elements | Thermal cycling and cable or accessory removal |
| Smart Home Appliances | Detachable power or control module | Heat source location and enclosure integration |
| Industrial Electronics | Removable power, detection or service connection | Temperature, vibration and cycle life |
| Custom Heated Devices | Project-specific magnetic electrical interface | Complete thermal and electrical validation |
These are possible application categories. Final suitability depends on the actual operating temperature, Pin Map, electrical load, mechanical design and complete device validation.
| Input | Information to Provide |
|---|---|
| Pin Map | Function of all five contacts |
| Electrical Conditions | Voltage, continuous current, peak current and signal type |
| Continuous Temperature | Maximum normal operating temperature |
| Short-Term Temperature | Maximum temperature and exposure duration |
| Thermal Cycle | Minimum temperature, maximum temperature, dwell time and cycle count |
| Heat Source | Location and distance from heater, motor or hot surface |
| Mechanical Space | Maximum diameter, height and restricted regions |
| Working Stroke | Minimum, nominal and maximum pogo pin compression |
| Termination | PCB, FPC, wire or project-specific connection |
| Magnetic Requirement | Capture, seated retention and separation conditions |
| Environment | Humidity, condensation, dust, vibration and cleaning exposure |
| Project Files | 2D drawing, 3D model, schematic, PCB layout or device assembly |
It is a magnetic spring-contact connector developed for projects where the complete connector may experience elevated operating temperatures or repeated thermal cycling. The actual temperature capability must be defined for the approved configuration.
A universal temperature limit should not be assumed. The required continuous temperature, short-duration exposure and thermal-cycle profile must be reviewed against the selected contact, housing, magnet, seal and termination materials.
Not necessarily. Current capability should be validated together with ambient temperature, connector self-heating, voltage drop and the temperature limit of the complete assembly.
The five contacts can be assigned to project-specific power, return, detection, identification, control or signal functions according to the customer Pin Map.
No universal 5 A capability should be assumed without defining the exact connector configuration, working stroke, contact allocation, ambient temperature, PCB routing and temperature-rise acceptance criteria.
Magnetic performance should be reviewed across the required operating temperature range. Capture, seated retention and separation force should be verified for the selected magnetic structure.
No. An ingress-protection rating must apply to a defined and tested connector or complete customer assembly under stated test conditions.
Provide the five-contact Pin Map, voltage, current, continuous operating temperature, short-term maximum temperature, thermal-cycle profile, available space, working stroke and available drawings.
Review additional custom magnetic connector components for different pin counts and mechanical structures.
Submit the temperature profile, Pin Map, electrical conditions, available space and drawings through the Get Quote & Samples page .
CTP can review the five-contact layout, high-temperature material selection, pogo pin working stroke, mating structure, magnetic arrangement, sealing interface and PCB, FPC or wire termination. Final temperature capability, electrical ratings, magnetic retention, mating life and environmental 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 →
