3 Pin Connector Description:
Mechanical specifications:
Contact layout: 3 pin connector pairs include 3 pogo pins and 3 contact pins, customizable pitch: 1.0mm to 5.0mm.
Male 3 pin connector: customizable in shape, diameter, and length, capable of achieving a 3 pin magnetic connector. Precision gold-plated spring loaded pin, working stroke ranging from 0.10mm to 5.00mm, spring force ranging from 5gf to 1,500gf/pogo pin.
Female 3 pin connector: gold-plated brass with gold-plated contact pins, perfectly matching the specifications of the male end.
Housing: Materials can be selected from PBT, LCP, HTN, with an IP rating of up to IP67 and IP68. The installation methods include ≥M1.20 threaded holes, flanges, buckles, and fully customizable external dimensions.
Working life: ≥10,000 insertions and removals, up to 500,000 cycles.
Electrical parameters:
Rated current: Johoty can design up to 50A current per pogo pin (depending on the customer’s customized configuration).
Rated voltage: up to 250V AC/DC.
Contact resistance: <20m Ω (initial).
Insulation resistance: ≥ 100MΩ (500VDC).
Dielectric strength: withstand 500V AC for 1 minute.
Signal integrity: Suitable for 10Gbps high-speed data signals, specific performance can be customized according to customer requirements.
3 pin connector function application, key performance and compatibility:
Function applications: Johoty’s 3 pin connectors are designed for blind insertion, high-frequency connection, and limited space. It is used for robot docking, drone batteries, precision testing fixtures, modular electronic devices, and fast charging.
Key performance: This high-quality pogo pin connector has high reliability contact, ultra-low voltage drop, excellent shock resistance and impact resistance. Its gold plating layer or optional composite coating can avoid corrosion or damage different environments.
Compatibility: The mechanical interface and electrical characteristics of Johoty’s 3 pin connectors can be adapted to your PCB layout, housing design, and cable specifications. It can seamlessly integrate into existing systems.
Johoty’s customized value:
Johoty provides customized solutions for deep engineering collaboration. We can flexibly adjust all mechanical dimensions, shapes, and electrical specifications. Targeted optimization based on your high vibration, extreme temperature, or high-frequency signal requirements. Johoty provides full support from conceptual design to 3 pin connector prototyping and mass production. You will receive 3 pin connectors and a perfectly integrated, high-performance, stable, and reliable interconnect solution in your system.
3 Pin Connector Challenges and Solutions:
3 pin connector strikes a balance between extreme size and high current density
Engineer’s challenge: My equipment space is extremely limited, but it needs to transmit 10A current, while requiring 20mΩ contact resistance and <30℃ temperature rise. Traditional designs are either too large or have insufficient current, posing a risk of overload.
Johoty’s Solution: Precision Electrical Thermal Mechanical Collaborative Simulation and Materials Science
Johoty is not simply choosing existing specifications. Adopting a multi physics field collaborative simulation platform based on FEA analysis. Accurately simulate the current density, thermal effects, and mechanical stress of pogo pins under your specific housing size. Optimize Spring Force, Au over Pd-Co alloy coating, and multiple inclined contact tips. Johoty can stably carry a continuous current of 10A in an extremely compact layout with a barrel diameter of 2.00mm. Control the contact resistance below 15mΩ and the temperature rise below 30℃. Help you solve the fundamental contradiction between high power and miniaturization.
Long life contact stability of 3 pin connector under harsh working conditions
Engineer’s challenge: The connector will be used for vibration, impact, temperature cycling, or corrosive environments. I am worried that the contact impedance will deteriorate after 10,000 connections. Will it cause signal interruption, power drop, and affect the reliability of the end product’s lifespan?
Johoty’s Solution: Reliability Design and Accelerated Verification Based on Failure Physics
Johoty will prioritize reliability engineering. We first analyze the micro corrosion and spring stress relaxation in your application scenario. The solution includes:
Anti micro corrosion design: Johoty’s 3 pin connector uses a combination of gold plating and optimized contact force to maintain a stable contact interface during vibration.
Spring life prediction: Using high-performance SWP-P spring or special copper alloy, after 10000 cycles of insertion and extraction life testing and stress relaxation testing. Used to calibrate our life prediction model and provide you with quantified life prediction reports.
Environmental sealing: It can provide IP67/IP68 sealing solutions and precision injection molding for both male and female ends, effectively resisting dust and moisture erosion. Johoty delivered not 3 pin connectors, but a fully validated reliability commitment for 3 pin connectors.
Efficient and unbiased conversion from concept to mass production of 3 pin connector
The challenge for engineers: communication with suppliers is costly, and design intentions are often distorted during the transmission process. I am concerned that the small batch of 3 pin connector samples may have perfect performance. However, poor consistency and accumulated tolerances during large-scale production resulted in project delays.
Johoty’s Solution: Intelligent Manufacturing under Digital Collaboration Platform and Statistical Process Control
Collaborative design: Johoty can synchronize 3D models with customers and annotate key dimensions and performance requirements. Our CFT team provides design feedback including DFM analysis within 24 hours to ensure that the design itself is manufacturable.
Process control: Fully automated precision CNC machining, molding/injection molding/over molding, and electroplating production lines. Cooperate with Johoty’s CMM and SPC control to monitor and analyze the travel and spring force of each 3 pin connector in real-time. You will receive a size inspection report containing CPK>1.33. Prove that Johoty’s process capability is sufficient to control tolerances within the ± 0.02mm range you requested. You can see that the performance of the 100,000th 3 pin connector is no different from that of the 1st 3 pin connector.
Why Choose Johoty’s 3 Pin Connector?
3 pin connector has male & female to transfer power and signals, best price, flexible custom, Johoty is trustworthy!
3 Pin Connector Benefits:
Johoty Deep Collaborative Engineering and Seamless Prototype Production with 3 Pin Connector
Benefit: Johoty provides deep engineering collaboration support starting from the conceptual design phase of 3 pin connectors. Capable of CNC or 3D rapid prototyping manufacturing. We can provide a fully functional 3 pin connectors that meet the design intent within 2 weeks.
Challenge solved: Engineers are often limited by rigid processes and slow response times of standard component suppliers when developing cutting-edge products. An innovative industrial design or compact mechanical layout is often forced to compromise due to the inability to find a matching 3 pin connector. Johoty’s deep collaboration capability directly solves the challenge of mismatched design freedom and supply chain response speed. Engineers’ innovative ideas can be quickly validated and implemented without compromising during critical design stages.
Johoty customizes a 3 pin connector for mechanical properties based on materials science and precision CNC manufacturing
Benefit: Johoty can accurately recommend and customize materials for springers, springs, and huosing based on high vibration, frequent connections, and extreme temperatures. This includes high reliability beryllium copper and specific grade PEEK plastic. Control the key needle shape, stroke, and holding force to a tolerance of ± 0.01 and a high current of 50A per pogo pin as low as 10mΩ.
Challenge to be solved: Engineers often need to ensure a mechanical lifespan of 100,000 cycles and contact reliability for 3 pin connector in harsh physical environments. Ordinary connector are prone to wear, plastic deformation, or poor contact under frequent connection or continuous vibration. Johoty selects housing materials such as LCP, Peek, HTN, and precision CNC control. The precise match between the mechanical performance of the 3 pin connector and the required lifespan of the end product fundamentally enhances the durability of the customer’s product.
Optimization of Electrical Design for Johoty’s 3 Pin Connector for High Density and Signal Integrity
Benefit: Johoty can customize the electrical specifications of 3 pin connectors, including current, impedance matching, and shielding solutions for high-frequency signals. At the same time, we can achieve stable electrical performance of 3 pin connectors within a smaller footprint.
Challenge to be solved: In the miniaturization and high-frequency projects of equipment, engineers need to maintain signal integrity and power stability in a limited space. Non customized 3 pin connectors may experience signal attenuation, power noise, or overheating due to parasitic inductance/capacitance or current bottlenecks. Johoty allows engineers to optimize 3 pin connectors as an active electrical component. 3 pin connectors have high performance throughout the entire circuit system, rather than being a passive interconnect point.
Reliability and consistency assurance from components to system level 3 pin connector
Benefit: Johoty has vertically integrated CNC/electroplating/assembly and 23 quality control processes. Each batch of customized 3 pin connector maintains high consistency in mechanical dimensions, electrical performance, and gold plating thickness.
Challenge to be solved: For high-end mass-produced products, engineers are most concerned about performance fluctuations or batch failures of small-batch customized 3 pin connector during mass production. This will directly lead to production line downtime or large-scale on-site failures, at a huge cost. Johoty provides a perfect implementation of a single prototype 3 pin connectors. We can ensure consistent, traceable, and reliable quality throughout the entire process from 3 pin connector engineering samples to mass production of 3 pin connectors. This provides crucial supply chain risk assurance for engineers to bring innovative designs to market.
3 Pin Connector Applications:
Automated equipment connection
Challenge: Unstable device connection, poor contact or loss affecting system efficiency.
Function: Johoty’s flexible customized 3 pin connector based on pogo pins can provide precise and stable electrical contact, and the equipment can operate stably for 10 years.
Customized solution: Johoty can customize the mechanical and electrical specifications of 3 pin connectors according to the actual size and electrical needs of the device.
How to solve: Precise design and CNC machining, CMM inspection, stable and highly consistent 3 pin connectors to reduce equipment failure rate.
Efficiency improvement/cost savings: Improve the stability of customers’ automation systems, reduce maintenance costs, and achieve OEE>91%.
Advantage: With a customized 3 pin connector, Johoty can help customers adapt to the needs of various automation devices.
Medical equipment connection
Challenge: The high-frequency use and miniaturization design of medical equipment always place very high demands on 3 pin connector.
Function: Johoty’s 3 pin connector provides highly stable electrical and mechanical connections within compact spaces of medical devices.
Customized solution: Targeting miniaturization of medical equipment, chemical solvents, EMI shielding, customized size, shape, and precise performance of 3 pin connector.
How to solve: Design a highly integrated, corrosion-resistant, and reliable 3 pin connectors to ensure stable operation of medical equipment under harsh conditions.
Efficiency improvement/cost savings: Medical equipment has zero malfunctions and requires almost no maintenance, with a lifespan of over ten years.
Advantage: Johoty provides precise and reliable 3 pin connectors to ensure efficient operation of medical equipment.
Consumer electronics connectivity
Challenge: Rapidly iterating consumer electronics products require a flexible and adaptable 3 pin connector solution.
Function: Johoty’s customized 3 pin connectors can adapt to different sizes and electrical specifications of electronic devices.
Customized solution: Johoty can customize 3 pin connectors according to different product needs of customers, with high compatibility and stability.
How to solve: We provide flexible and reliable customized 3 pin connector to quickly adapt to market changes.
Efficiency improvement/cost savings: Assist engineers in accelerating research and development progress, reducing design modifications, and shortening the production cycle from EV, DV, PV to mass production.
Advantage: We can support engineers in the consumer electronics industry for rapid product iteration, ensuring long-term stable connectivity.
Automotive electronic system connection
Challenge: Automotive electronic systems have very high requirements for high temperature resistance, at least IP67 waterproof, and shock resistance of 3 pin connectors.
Function: Johoty’s 3 pin connectors have excellent high temperature resistance and earthquake resistance, and IP67 shielding is suitable for automotive environments.
Customized solution: A stable 3 pin connector customized solution for high temperature, humidity, and high pressure.
How to solve: Johoty has customized a 3 pin connector, which is a pogo pin connector with a pitch of 1.00mm~10.00mm that can work stably under bumpy and humid conditions.
Efficiency improvement/cost savings: Improve the stability of automotive electronic systems and reduce maintenance costs caused by 3 pin connector failures.
Advantage: Johoty is designed for driving environments with high temperature, humidity, high pressure, and vibration, ensuring high reliability of automotive electronic systems.
Robot system connection
Challenge: Robot systems require fast response and highly precise mechanical and electrical connections, as well as a response time of 0.01 seconds.
Function: Johoty’s 3 pin connector provides high-precision and high response speed electrical connections, suitable for fast-moving robot systems.
Customized solution: Customize precise 5gf + 10mΩ electrical specifications and mechanical dimensions with ± 0.01mm accuracy, matched with robot hardware >99.99%.
How to solve: Johoty’s precision designed 3 pin connector can respond quickly to 0.01s connections and operate accurately within ± 0.01mm.
Efficiency improvement/cost savings: Improve the operational efficiency and accuracy of robots, with almost no maintenance and downtime for connection failures.
Advantages: Accurate and reliable mechanical accuracy of ± 0.01mm and 10mΩ electrical connection, supporting efficient operation of robots.
Communication equipment connection
Challenge: High speed communication devices often require 10GHz high frequency, 10Gbps, and high stability for 3 pin connector.
Function: Johoty’s 3 pin connectors provide engineers with stable communication signals and EMI shielding communication quality.
Customized solution: Provide 3 pin connectors for high-speed signal to meet high-frequency equipment.
How to solve: Johoty’s 3 pin connectors ensure stable signal transmission, with gold or composite coating, and SUS631 spring without elastic attenuation to ensure signal attenuation of communication equipment.
Efficiency improvement/cost savings: Data transmission achieves 10GHz high frequency and 10Gbps speed, reducing system losses caused by signal issues.
Advantages: 10GHz high-frequency stability, Johoty’s 3 pin connector provides 10Gbps, ensuring stable operation of communication equipment.
Industrial automation control system connection
Challenge: The complex industrial environment places very high demands on the durability, high current, anti vibration, and anti-interference capabilities of connector.
Function: Johoty’s 3 pin connectors can withstand vibration and maintain a continuous current of >10A per pogo pin in complex industrial environments. It has good durability, high power and anti-interference ability.
Customized solution: Johoty can customize high anti-interference and durable 3 pin connector for industrial control systems.
How to solve: Customize a durable 3 pin connectors that meet anti-interference, anti-vibration, and high current requirements. Many customers of automation companies can obtain pogo pin connector that enhances industrial system stability.
Efficiency improvement/cost savings: high cost-effectiveness, reasonable cost but ultimate high performance, reducing maintenance and replacement frequency, and improving the overall stability of production equipment.
Advantages: Johoty’s 3 pin connectors have unique high current and strong anti-interference capabilities, so you can rest assured of the reliability of your industrial automation system.
Spacecraft Connection
Challenge: The spacecraft requires a 3 pin connector that can withstand extreme temperature differences and strong vibrations, demanding high performance and reliability.
Function: Johoty’s 3 pin connectors maintain stable electrical connections under extreme aviation conditions. Inconel, Elgiloy or SUS631 springs maintain extremely low elastic attenuation to meet the special needs of spacecraft.
Customized solution: Customize high-performance 3 pin connector for spacecraft to meet the challenges of extreme temperature differences and vibrations.
How to solve: Johoty precise design, using ± 0.01mm CNC machining accuracy and performance exceeding springs. Ensure stable and reliable 3 pin connectors to fit extreme environments.
Efficiency improvement/cost savings: Enhance the reliability of spacecraft systems and provide cost-effective 3 pin connectors that meet customer requirements. Reduce expensive repairs caused by connection failures.
Advantages: High reliability and ability to withstand extreme environments, ensuring the safe operation of spacecraft systems.
3 Pin Connector Advantages:
Ultimate spatial adaptability optimization and system integration improvement of 3 pin connector
Value: Directly solving the mechanical layout challenges brought by equipment miniaturization and high-density integration.
Johoty’s 3 pin connector advantages：
Non-standard mechanical size customization: Johoty can customize the outer diameter, stroke, R-angle, length, installation flange shape and size of 3 pin connectors. Engineers no longer need to sacrifice internal PCB layout or shell structure design for the fixed shape of existing standard connector. The 3 pin connectors can passively adapt to established industrial designs, rather than forcing system designs to compromise around the 3 pin connectors.
Alien structure design: For asymmetric or confined spaces, elliptical, D-shaped, or angled sloping designs can be provided. In complex assemblies, a 3 pin connector can perfectly avoid surrounding components. It can optimize space utilization and simplify assembly paths.
Problem solved: Effectively overcome various problems caused by mismatched size or shape of standard connector. Including equipment volume increase, PCB board layer increase, or structural design complexity.
Precise electrical performance matching of 3 pin connector for specific applications
Value: Ensure that the electrical characteristics of the connector accurately match the load requirements, avoiding excessive or insufficient performance.
3 pin connector advantages：
Current carrying and resistance customization: Johoty adjusts the spring force of the pogo pin, the diameter of the plunger and barrel. As well as the coating material and thickness, choose a high conductivity gold coating or a more cost-effective palladium nickel alloy. We can precisely control the contact resistance and rated current of 3 pin connectors. Engineers can customize optimal solutions for micro motors with high current transmission or sensor readings for precision small signal measurement.
Impedance control and high-frequency optimization: For applications involving data transmission, Johoty customizes insulation materials, pogo pin pitch, and internal structure. Implement the 90Ω differential impedance required for USB 2.0, suppress signal reflection, and ensure signal integrity.
Problem solved: Eliminate the risks of excessive voltage drop, heat generation, signal distortion, or bandwidth limitation that may be caused by universal connector.
Enhanced mechanical durability and environmental robustness of 3 pin connector
Value: Enhance the service life and connection reliability of 3 pin connectors under harsh working conditions.
Johoty’s 3 pin connector advantages：
Collaborative design of stroke, elasticity, and lifespan: Johoty allows engineers to finely balance between contact stroke, elasticity, and cycle lifespan. For applications that require frequent plugging and unplugging, spring materials such as Inconel, Elgiloy, SUS631, and heat treatment processes can be selected. Ensure sufficient contact force and<1% elastic attenuation, and increase the number of insertions and removals by over 200,000.
Customized environmental sealing: Choose IP67 or IP68, integrate customized silicone, fluororubber, etc. Effectively prevent dust, moisture, and even chemical liquids from entering 3 pin connectors. Outdoor equipment, medical devices, or industrial automation equipment are very helpful when using IP67 or IP68 water proof.
Anti-vibration and impact design: Optimize internal spring structure and 3 pin connector male and female docking guidance. Under continuous vibration or mechanical shock, the 3 pin connectors can maintain stable electrical contact and prevent momentary power outages.
Problem solved: Resolve 3 pin connector failure, unstable contact, or shortened lifespan caused by vibration, frequent use, humidity, or environmental pollution.
Johoty simplifies supply chain and accelerates R&D cycle with 3 pin connector
Value: By collaborating deeply with Johoty, project management complexity can be reduced and product time to market can be shortened.
Johoty’s 3 pin connector advantages：
Integrated solution: Johoty provides collaborative design and manufacturing of male and female 3 pin connectors. We can provide the best fit tolerance of ± 0.05mm, electrical performance, and mechanical compatibility. Engineers do not need to separately search and verify male and female suppliers to avoid interface matching risks caused by different sources.
Seamless transition from prototype to mass production of 3 pin connector: possessing vertical capabilities from rapid prototyping of 3 pin connectors to large-scale production. Engineers can obtain 3 pin connector prototype samples that are highly consistent with the performance of mass-produced parts during the concept validation phase. Avoid expensive iterations and delays caused by discovering and modifying 3 pin connector issues during design validation or production stages.
Problem solved: Relieve the coordination pressure, quality consistency risk, and long sample waiting time faced by engineers in multi supplier management. Helps engineers concentrate R&D resources on core functional development.
FAQ
Challenge: Engineers need to ensure that the 3 pin connector does not experience micro motion wear, resulting in increased resistance or signal interruption under dynamic stress. At the same time, the insulation housing of the 3 pin connector will not crack due to impact.
Johoty’s solutions:
Contact mechanics optimization: Johoty used nonlinear FEA to simulate the spring force curve and stroke of pogo pins. Within the expected vibration spectrum, the plunger tip always maintains a minimum working force. This force value is much greater than the separation force caused by vibration acceleration, thereby suppressing micro motion.
Multi point contact interface: In the critical contact area between the male and female ends of the 3 pin connector, Johoty often designs slotted tips or crown shaped needles instead of simple flat heads. This can create multiple independent contact points, reducing the risk of complete failure due to contamination or oxidation of a single contact point. This can also stabilize the contact resistance at <20mΩ.
Housing materials and structures: For insulated housing, Johoty prioritizes LCP or HTN with high impact strength and fatigue resistance. Structurally, Johoty integrates the design of metal inserts or reinforcing ribs. This can disperse the stress concentration points between the 3 pin connector and the PCB or mounting surface. It can prevent plastic creep or brittle fracture.
Challenge: Prevent high current from causing crosstalk to weak sensor signals or high-speed data lines within a limited 3 pin connector space. Minimize contact resistance to reduce power loss and heat generation.
Johoty’s solution:
Pogo pin definition and layout collaborative design: Johoty strongly recommends and supports collaborative pogo pin definition. Place the high current pogo pins on the outer side, allocate the middle pogo pins to sensitive signals or ground, and use the grounded pogo pins as a natural shield. We provide simulation comparison data of dedicated grounding pins and peripheral shielding shell grounding for you to choose from.
Low loss dielectric materials: For applications with high-frequency requirements, Johoty provides special engineering plastics with low Dk/low Df as insulators. PTFE composite materials or specific grades of LCP are used to minimize signal attenuation and distortion in the medium.
Low contact resistance: The core is the electroplating solution. Under the gold plating layer, Johoty uses a nickel phosphorus (Ni-P) barrier layer to prevent mutual diffusion between the substrate copper alloy and gold. In this way, the long-term stability of the contact resistance of the 3 pin connector under high temperature and high humidity conditions. The thickness of the gold layer can be customized according to the number of insertions and the corrosiveness of the environment, usually ranging from 0.125μm to 1.25μm.
Challenge: The standard IP67 is the foundation, but engineers need to ensure that the electrochemical environment inside the 3 pin connector is stable. Prevent the inhalation of moisture due to respiratory effects caused by temperature cycling, as well as the erosion of pogo pins and plastics by specific chemicals.
Johoty solutions:
Multi physics field design of sealing system: Johoty’s 3 pin connector sealing solution is not limited to a single O-ring. We analyze the deformation of the 3 pin connector at -40℃ to +85℃ or wider. Select silicone rubber with appropriate compression permanent deformation rate, and design the compression rate and filling rate of the sealing groove. We require that the sealing contact pressure remains effective during the process of thermal expansion and contraction.
Targeted electrochemical protection:
Contact protection: In addition to standard gold plating, for sulfur-containing environments, Johoty recommends using thick gold or palladium nickel (Pd Ni) plating. This 3 pin connector has excellent resistance to sulfide corrosion.
Chemical resistance of housing materials: Johoty provides material selection recommendations based on a chemical resistance database. For fuel resistant and hydraulic oils, PPS can be chosen. For a wide range of chemical resistance, PEEK is the top choice.
Air-tightness protection: For condensation risk, Johoty can fill nitrogen or inject special waterproof gel into the 3 pin connector. Fundamentally eliminate the possibility of internal oxidation and dendrite growth in 3 pin connector.
