Threaded Pogo Pins

   Description of Threaded Pogo Pins

Mechanical specifications:

Thread specifications: Fully support metric, imperial, and American standard threads: M1.20×0.40, M2.0x0.4, M3.0x0.5, # 4-40, # 5-40, M1.6×0.35, etc. Accepting customized non-standard pitch and diameter.
Stroke: The standard travel is 0.50mm to 5.00mm, and specific travel ≥ 0.10mm can be precisely designed according to application requirements.
Working life: Typical life >10,000 cycles, up to 500,000 cycles with optimized structure and materials.
Contact force: From 5gf to 1,500gf, it can be precisely adjusted according to the current load and contact resistance requirements.
Barrel material: Made of high reliability brass or stainless steel, gold-plated to enhance corrosion resistance and wear resistance.
Spring material: Made of high-performance piano steel wire, beryllium copper, SUS631 to minimize elastic attenuation, long-term mechanical stability, and fatigue resistance.
Anti-seismic structure: Multi point contact and spring preloading effectively suppress transient breakage caused by high-frequency vibration and impact.

Electrical parameters:

Rated current: Supports high current transmission from 1.0A to 50A, meeting high-power requirements.
Contact resistance: The initial contact resistance is less than 20mΩ, maintaining extremely low resistance fluctuations throughout the entire lifecycle.
Voltage drop: Under rated current, the typical voltage drops below 30mV to ensure efficient power transmission.

Functional applications + key performance + compatibility:

Functional application:

Designed for high-density, high reliability power and signal transmission in harsh environments. Typical applications: power supply and communication for industrial robot joints, aerospace testing equipment. Modular connection of high-end medical instruments and charging interface for high-power portable devices. And communication base station modules in high vibration environments.

Key performance:

Strong shock resistance: The internal mechanical structure is optimized for vibration spectrum. Maintain stable electrical contact in vibration environments ranging from 10Hz to 2,000Hz, with a maximum of 15G.
High current carrying capacity: By optimizing the overall structure, plating thick gold with low impedance materials, and designing efficient heat dissipation, a continuous current capacity of 50A is achieved.
Flexible customization: Johoty customizes plunger tip shapes (semi-circular, pointed, coronal, flat, star), spring force curves, and installation methods (such as flange and seal ring integration). Realize perfect mechanical integration with your design.

Compatibility:

• The threaded interface design ensures compatibility with standard and customized mounting holes, simplifying PCB layout and housing design.
• Provides multiple surface treatment options (such as gold plating, rhodium plating, palladium nickel plating, composite electroplating) to resist specific environmental corrosion.
• It can be integrated with Johoty’s waterproof and dustproof sealing solutions (up to IP67/IP68 levels) to expand its environmental adaptability.

Johoty’s core values:

Combining deep engineering customization with precise performance optimization for demanding applications. Johoty provides parts and an integrated solution from structural simulation, material selection to performance verification for continuous power supply of 50A in your high-frequency vibration environment. Our CFT team can directly meet your needs, quickly transforming your resonance frequency avoidance and extremely low contact resistance requirements into stable and reliable threaded pogo pins. We ensure seamless integration and excellent performance in your high-end systems.

Mechanical Stability and Shock Resistance: Challenge-1 Solved by Threaded Pogo Pins

Challenge: In high-intensity vibration, the contact interface of the connector is prone to micro motion wear, leading to signal interruption and premature failure of the connector.

Johoty solution: SUS631 spring needle with multi-point contact and high stroke spring, combined with precision threaded barrel and internal mechanical self-locking. Double axial and radial pressure is generated during tightening to control the contact resistance change rate within<5 milliohms.

Engineers benefit from maintaining stable contact even under 10-2,000Hz vibration testing. Improve the long-term reliability (MTBF>100,000 hours) of threaded pogo pins in industrial, automotive, and outdoor equipment.

High current and thermal management: challenge-2 solved by threaded pogo pins

Core challenge: Small-sized threaded pogo pins experiences excessive temperature rise due to contact resistance and self-impedance when transmitting 50A continuous current. Causing performance degradation and safety hazards.

Johoty solution: Adopting beryllium copper plating thick gold process and large-area conduction design, the ultra-low impedance spring reduces the total impedance to 10 milliohms. Meanwhile, the barrel serves as an efficient and mini heat sink, it can quickly dissipate heat.

Engineer benefits: Stable transmission of 15-50A high current in a compact space, with a temperature rise 20-30% lower than the standard Perfect support for fast charging, energy storage systems, and high-end testing fixtures.

Customized Flexibility and Performance Balance: Challenge-3 Solved by Threaded Pogo Pins

Core challenge: Customization of non-standard thread M1.20×0.45 and special shaped inclined and concave surfaces at the expense of current load, lifespan, or shock resistance.

Johoty solution: Based on a modular platform for precise performance prediction and simulation, customized design of threaded pogo pins M1.2 to M8 threads. Each model achieves preset performance in terms of current, lifespan >100,000 cycles, and shock resistance, rather than simply replicating in size.

Engineer benefits: You get more than just special sized threaded pogo pins. They are complete solution with predictable performance that can match your unique design perfectly. It can also shorten your verification cycle and reduce overall project risks.

Mechanical Stability and Vibration Resistance of Threaded Pogo Pins

Micro Failure and Intermittent Connections

Challenges for engineers to solve:

The problem often occurs in industrial automation, aerospace, vehicle mounted and portable medical equipment. Continuous vibration and mechanical impact can cause micro motion wear on traditional pogo pins. This can lead to a surge in contact resistance, instantaneous signal interruption, and even complete failure. This intermittent fault is extremely difficult to reproduce and diagnose, and is a hidden killer of system reliability.

Johoty’s solutions and advantages:

Thread locking mechanism:

Mechanism: The barrel of the threaded pogo pins is rigidly fixed to the equipment housing or PCB bracket through precise M2, M2.5, M3 or customized specifications. Creating a mechanical anchor point fundamentally eliminates any degrees of freedom of the threaded pogo pins body outside the Z-axis direction. Comparison: Standard press in connectors may loosen under long-term vibration, causing the entire connector module to shift. And Johoty’s thread design ensures that the position of the connection point is absolutely constant.

Resistance to lateral shear force:

Customized thread shapes and mating structures can enhance the ability of threaded pogo pins to resist lateral forces caused by PCB bending or assembly stress. Large and multi board systems can effectively resist lateral forces.

Integrated damping design:

Johoty can integrate internal damping structures or select specific springs during the customization process to absorb and dissipate high-frequency axial vibration energy. This can protect the internal springs and contacts from fatigue effects.

The value gained by engineers:

Achieving zero displacement of connection points, significantly improving the average time between failures of customers’ products in harsh environments. Meet or even exceed stringent anti vibration and impact standards such as MIL-STD-810H and IEC 60068-2-6.

Threaded pogo pins have excellent high current carrying and thermal management capabilities, breaking through the physical limits of power transmission

Challenges for engineers to solve:

With the improvement of device functional integration, power density has sharply increased. Traditional small-sized connectors have become system bottlenecks due to their high resistance and limited current carrying capacity. Causing severe fever, decreased efficiency, and even thermal runaway.

Johoty’s solutions and advantages:

Low contact resistance design:

Materials Science: High conductivity beryllium copper alloy, specific grade phosphor bronze, supplemented with a pointed high thickness hard gold over nickel barrier. The customized threaded interface provides a huge contact surface area and extremely high contact pressure. The contact resistance of Threaded pogo pins has decreased to the 15m Ω level and is extremely stable. Current optimization: Through overall structural design, optimize the current path from Plumger to threaded barrel to reduce bottleneck points.

Efficient heat conduction:

The threaded structure not only conducts current, but also serves as an efficient heat conduction channel. The heat generated by Threaded pogo pins can be quickly conducted to the metal casing through the threaded interface, achieving active heat dissipation.

Comparison: Standard pogo pins in plastic shells accumulate heat inside and can only be slowly dissipated through air convection.

High current customization:

For high current applications >10A, Johoty can customize larger diameter barrels, use multi stranded wire springs or solid copper column designs. Match the corresponding thread specifications to ensure that the current carrying capacity is upgraded synchronously with thermal management.

Value gained by engineers:

Achieving higher continuous current and peak current ratings at the same volume. Significantly reduce temperature rise, improve system energy efficiency and long-term stability. Suitable for fast charging, power battery management, high-power RF, etc.

Ultimate layout flexibility and space optimization, threaded pogo pins unlock physical constraints for innovative design

Challenges for engineers to solve:

The arrangement and fixation of standard connectors often conflict with valuable layout space, wiring channels, or adjacent components. High density Johoty’s threaded pogo pins are often required in high-density board design, irregular internal structures, or modular systems

Johoty’s solutions and advantages:

Fully customized thread specifications and shapes:

Specifications: Johoty’s threaded pogo pins ranging from ultra-fine threads to standard threads, suitable for different plate thicknesses and structural strength requirements.

Shape: The shape of the pipe sleeve can be customized as hexagonal, flanged, or non-standard. Easy for engineers to use tools for fastening or directly as a positioning structure. Customize the tip, round head, flat head, and crown of the plunger tip as needed to optimize contact with the opposing solder pads.

Liberate PCB space:

• The threaded fixation method does not require opening large crimping holes on the PCB or occupying additional SMD pads. Johoty’s threaded pogo pins have freed up valuable space for high-density wiring.
• It can achieve non-standard arrangement methods, such as circular and curved arrangement, perfectly fitting the product ID and structural design.

Simplify assembly and maintenance:

Threatened pogo pins are independent and replaceable units. When damaged, you won’t replace the entire pogo pin connector. Simply unscrew the faulty pogo pin and replace it with a new pogo pin. Greatly reducing engineers’ maintenance costs and valued time.

Value gained by engineers:

Johoty’s threaded pogo pins provide design ready connectivity solutions. Engineers gain unprecedented freedom in mechanical and electrical layout, effortlessly tackling the most complex design challenges.