The rise of smart wearables and the increasing demand for high current connectors due to the rapid charging of smartphones have led to more frequent applications of spring POGO PIN probe connectors. Currently, most smart digital products on the market use spring POGO PIN top pin connectors, with only some low-end products still using spring type connectors.
Today, Yongtan Electronics editor will take you to explore the precautions that should be taken when selecting and applying spring POGO PIN top probe connectors to products.
1、 Selection of working stroke for spring POGO PIN probe connector
When choosing a spring POGO PIN probe connector, it must be determined based on the space of the product being used. Choosing a power connector generally consists of a plug and a socket, where the plug is also called a free end connector and the socket is also called a fixed connector. The connection and disconnection of circuits are achieved through plugs, sockets, and insertion and disconnection, thus giving rise to various connection methods for plugs and sockets. This is something that many operators are familiar with. Below is an analysis of the precautions to be taken when using it:
1. End connection
1) When terminating power connectors, they should be strictly terminated and inspected according to the corresponding termination specifications or requirements, and terminated according to the corresponding contact numbers. The maximum insulation layer thickness between the selected cables and wires should match the distance between the contacts, and the cable core should match the terminals of the contacts. When crossing or merging wires between contacts, the diameter of the stranded wire cores should be considered, and crossing or merging wires between contact crimping holes is prohibited;
2) When welding, the appropriate power soldering iron should be selected according to the diameter of the bare wire. The welding time for each contact is generally not more than 5 seconds. Care should be taken not to let the solder penetrate the insulator to avoid a decrease in the insulation resistance of the product;
3) When cleaning the power connector (including the cleaning of the contacts), a silk cloth dipped in anhydrous ethanol can be used and dried before use. It is not allowed to use chemical solvents such as acetone that have harmful effects on power connectors;
4) When the power connector is in a non plug in state, it must be covered with matching protective covers or other dust-proof measures must be taken.
2. Pre plug inspection
1) The model, code, number, insertion position and direction of the power connector should comply with the requirements of the design and process documents;
2) The tail cover is not loose and the binding is not detached;
3) The cable bundle or wire at the tail cover opening is not bent or bent, and the outer skin is not damaged;
4) The grounding wire of the shielding skin is not broken, and the solder joint connected to the shell is not loose;
5) The housing and mating interface of the power connector should be free of deformation, cracks, thread wear, loose or damaged fasteners, and no peeling of the coating;
6) The locking device should be intact and undamaged;
7) The power connector with a sealing ring should have the sealing ring intact and undamaged;
8) There should be no excess material inside the interface (insulation surface, socket);
9) The pins and sockets should not have defects such as skewness or deformation;
10) The insulation surface at the root of the pin should not have any broken, raised, or detached metal debris;
11) There should be no obvious retraction or protrusion of the pins and sockets. Compared with normal pins and sockets on the same plane, the distance of retraction or protrusion should generally not exceed 0.5mm. Otherwise, the pins or sockets should be checked for proper assembly or retraction;
3. Plug and unplug operation
1) Before plugging in, it is necessary to confirm whether the code of the plug and socket to be plugged in, the "shape" of the interface, the "positioning key and slot", "positioning color code", "locking pin and slot", and "positioning screw and screw hole" at the interface are consistent and accurately positioned;
2) During the process of inserting or screwing in the power connector, the mating surface of the plug and socket should be aligned parallel and the cable or wire should be straightened, and then the locking sleeve should be gently pushed or slowly screwed into place along the axis direction and locked. If it is found that the two mating surfaces are skewed, the positioning is inaccurate, the hand feel is too tight beyond normal force or there is an abnormal feeling of obstruction, the operation should be stopped, pulled outward along the axis direction and checked for status. After troubleshooting, the plug should be reconnected. Allow the use of specialized auxiliary tools for plugging and unplugging;
3) When tightening the tail cover of the plug or socket, the outlet cable or wire of the tail cover cannot rotate;
4) When blind insertion, it is recommended to use lighting and visual devices (such as miniature cameras or endoscopes and monitors) to monitor the blind insertion process. Blind insertion operation should be carried out under the conditions of no light and monitoring equipment. Use your fingers to feel the corresponding characteristics of the interface to be plugged in, then plug it in place and lock it;
5) In the locking operation, if it is found that the lock cannot be locked normally, it should be pulled out in a timely manner and checked. After the inspection is correct, it should be plugged in and locked according to the regulations;
6) For power connectors with thick and hard cables, the cables should be fixed to prevent sagging and prevent the power connectors from being unable to be pulled out or damaged;
7) After the power connector is plugged in and locked, the tail cover outlet cable should be kept in a natural extension state, and the starting point of cable bending should generally be at least 30mm away from the tail cover outlet. Unless otherwise specified, when bending, the inner bending radius of the cable should generally not be less than 4 times the outer diameter of the cable;
8) When plugging and unplugging the power connector, the body should be grasped for insertion and removal, and it is not allowed to grasp the cables or wires outside the tail cover for operation.
4. Testing
1) When conducting cable or electronic device testing, the probe should meet the requirements. It is strictly prohibited to use a probe or copper wire for direct testing to prevent enlarging the socket of the power connector, damaging the inner wall, or tilting the pin;
2) Before testing the power connector on the test cable and electronic device, the power connector (plug and socket) on the test cable should be checked first. Any external damage, corroded pins (holes), twisted pins, deformed sockets, dust pollution, broken wires, or broken shielding skin should not be plugged in;
3) The plugging and unplugging operation of the power connector during the testing process should generally be carried out after the power is disconnected and the device is stationary for no less than 3 minutes. Live plugging and unplugging are prohibited;
4) After completing the model and product electrical performance testing, if the power connector does not separate for a long time, the power connector should be secured according to the requirements of the design and process documents. The locking device of the power connector should not be loosened when securing.
5. Storage
The power connector should be stored in an environment with a temperature range of -10 to+40 ℃, a relative humidity not exceeding 80%, and no corrosive gases such as acids, alkalis, or other substances in the surrounding area.
Dongguan Nabaichuan Electronic Technology Co., Ltd. was established in 2006, with the aim of "innovating product types and first-class quality control". We have a vast space in the fields of quick connectors, industrial connectors, power connectors, battery connectors, charging plugs, electrical connectors, high current connectors, Anderson power products, APP connectors, module connectors, battery connectors, and more. In the current year of 2017, we are going abroad to fight for the world.
If you have any opinions or suggestions about our module connector products, you can call our service personnel for consultation. Choose within the scope of work schedule; Small space can cause excessive compression of the spring of the POGO PIN top pin connector, affecting its service life. Large space may result in inadequate contact, unstable impedance, and transient breakage.
Professional production of pogo pin connectors
2、 Selection of Electroplating Materials
Electroplating materials have the functions of increasing conductivity, preventing oxidation, and resisting wear in spring POGO PIN top pin connectors. Different materials have different effects, such as gold, which has good conductivity. For high current connectors and products with high impedance requirements, electroplated gold is generally chosen.
3、 The influence of electroplating film thickness
The spring POGO PIN top pin connector will experience certain friction during operation due to the need for contact. Over time, it will wear out, and the thickness of the electroplating film will have a significant impact on the product's service life. When used to a certain extent, the electroplating layer will be worn off, which may result in excessive resistance, unstable impedance, and other phenomena. The electroplating layer of Pogopin with 100000 cycles is definitely thicker than that with 10000 cycles, so please be sure to choose the electroplating film thickness according to your needs when selecting products.
4、 The influence of elasticity
The contact force of the spring POGO PIN top pin connector comes from the internal spring, and the magnitude of the spring force can directly affect the impedance and stability of the spring POGO PIN top pin; Excessive elasticity will increase the friction coefficient and affect the service life of the spring POGO PIN ejector pin.
The spring POGO PIN probe connector produced by Yongtan Electronics has always maintained a leading advantage and has been recognized by some well-known domestic and foreign enterprises, becoming their preferred supplier of spring POGO PIN top pin connectors. And established a good reputation. Yongtan Electronics has over 10 years of industry experience and a senior technical team, with a deep understanding of the core mechanism of Yongtan Electronics' POGO PIN. They can control the process and quality from key and detailed aspects, ensuring the provision of high-quality products and services to customers.