Magnet Charger Pin

Dongguan Xinteng Electronics Co., Ltd. is one of the most reliable manufacturers and suppliers of magnet charger pin in China, featured by quality products and good service. Welcome to wholesale bulk durable magnet charger pin in stock here from our factory. Also, customized service and OEM&ODM service are available.

This magnetic connector has been tested for a lifespan of 10,000 mating cycles. During the design phase, we conducted finite element analysis on pin eccentricity and spring travel to ensure that "jamming" or "pin drop" will not occur during prolonged engagement. Overall, this 9-pin magnetic connector belongs to the mid-to-high-end series, balancing waterproofing, conductivity reliability, and compact design. Its design focuses on durability, stability, and ease of assembly.

Furthermore, based on years of customer feedback, this type of connector exhibits a low failure rate in long-term high-humidity environments, making it a preferred option for many medical devices.

This 9-pin magnetic connector features a modular female connector structure with a waterproof female connector. The overall structure consists of a shell, magnetic assembly, Pogo Pin array, and insulating plastic. The Pogo Pin spacing is 2.2mm, and each of the nine pins has an independent path, ensuring electrical isolation for each signal. The magnetic component uses N52 grade neodymium iron boron magnets, providing strong attraction. Its compact size makes it suitable for inclusion in handheld devices or medical instrument housings.

Dongguan Xinteng Electronics Co., Ltd. is a leading supplier of high-reliability spring pin connector solutions in China. Our factory covers 2,700 square meters and boasts a research and development team of 15 experienced engineers. We manufacture and sell pogo pins, pogo pin connectors, magnetic connectors, magnetic wires, precision machined parts, etc., focusing on innovative, miniaturized, high-current, waterproof, corrosion-resistant, and long-life applications.

Our products are used in automotive electronics, IoT, consumer electronics, medical and aesthetic equipment, and other fields. We provide cutting-edge connectivity technology and drive global technological innovation.

Typical Cycle Count Range

The typical lifespan of a Magnet Charger Pin is 10,000 cycles. For example, a gold-plated pogo pin modular product can achieve 10,000 cycles in industrial and medical applications.

Lifespan Testing Method: Physical/Mechanical Cycle Test

Set one "mating-releasing" cycle, and one cycle of compression to the working height or specified compression amount, followed by release to the initial state.

Perform 10,000-100,000 cycles on a test bench, with interval sampling.

Measure key parameters every certain number of cycles (e.g., every 5k or every 10k): Spring force/retention force, insertion force/extraction force, contact resistance, and physical appearance, such as spring deformation, pin wear, plating peeling, screw thread, and jamming.

After the set cycle value is completed, compare the difference between the initial and final states to determine whether the lifespan criteria are met.

Key Factors Affecting the Lifespan of Magnet Charging Connectors

The key factor affecting the lifespan of magnetic connectors is the Pogo pin, and the following are some key factors affecting the lifespan of Pogo pins:

• Spring Material Fatigue

The spring is the core of cycle life. Frequent compression and release cause metal fatigue and permanent deformation, leading to a decrease in spring force. Therefore, spring fatigue is a significant cause of reduced Pogo pin cycle life.

• Contact Surface Wear/Plating Degradation/Oxidation/Jaw Jam

Although the compression action is vertical, slight wobble and uneven loading may occur during actual insertion and removal, causing contact surface slippage, wear, plating damage, and oxide layer formation. This can increase contact resistance or even lead to open circuits.

• Improper Selection of Working Stroke/Compression Amount

Too short an engagement stroke may result in insufficient spring compression and insufficient force; too long an engagement stroke or full compression may lead to plastic deformation, impact at the bottom of the spring, and accelerated wear. The design must select an appropriate working stroke.

• Environmental Conditions

Extreme temperatures, humidity, volatile cleaning agents, vibration, and shock can all accelerate fatigue, corrosion, and plating damage. Therefore, the raw materials and coatings of the Pogo pins must be selected according to the application environment.

• Insertion/Extraction Force and Alignment/Off-center Load

If the device is not properly aligned during insertion or there is severe off-center load (lateral force on the needle), it can lead to lateral friction, spring imbalance, and contact head wear, all of which may shorten the lifespan.

• Plating Material and Thickness

Gold plating, nickel plating, and anti-corrosion coatings all affect lifespan; inferior plating is prone to peeling and increased contact resistance.

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