What is a board-side connector?

      Board-end connector is a connector with one end fixed on the circuit board. It has a short transmission distance, support for micro-current transmission, signal transmission, model rich, small appearance, design and assembly more precise and other characteristics. Board-end connectors are fixed into: DIP (perforated fixed) type and SMT (surface with dip) type, both ways use the solder to assist in fixing, but the specific form is different.
      DIP fixed English named dual in-line package, also known as DIP package or DIP packaging, referred to as DIP or DIL. is an integrated circuit packaging method. dip package components can be mounted on the board with through-hole cartridge technology, but also can be installed using DIP socket. The use of DIP sockets can facilitate the replacement of components, but also to avoid the overheating of components when soldering.

      
      SMT full name is Surface?mount (or mounting)?technology, the Chinese meaning for the surface adhesion (or mounting) technology. This technology is to mount the components on the surface of the circuit board. The reason why it is called paste, because the solder paste has a certain stickiness, in the absence of melting, can also stick to the components, so that the connector is mounted on the board.
      The two fixed forms of board-side connectors use different production processes. In the selection process, you should listen to the advice of professional connector engineers, in the case of full communication of needs, connector engineers can integrate price, application, delivery and other factors to choose the right production program.

                                                                Classification method of connector types

1.The cross-sectional shape of the male terminal at the separable interface is divided into: Pin (round)/socket and Post (square or rectangular)/receptacle.


2. By the way of permanent connection is divided into: mechanical connection type and welding connection type.


3. divided by the medium carrier of connection: wire connectors and board connectors.


4. Divided by mechanical connection: Crimp connector; IDC connector; Wrapped connector; Press-fit connector; clamp connector... According to the welding method can be divided into: surface mount (SMT) connectors; reflow (reflow) connectors; perforated (PTH) soldering connectors, wave soldering (wave soldering) connectors


5. According to the shape of the shell is divided into: rectangular connectors; circular connectors; soft-shell connectors; D-Sub connectors; ribbon connectors. According to the shell material is divided into: LCP connector; nylon material connector; PBT connector.


6. According to the signal layer and grounding layer structure characteristics are divided into: coaxial connectors and non-coaxial connectors


7. According to the application frequency: high frequency connectors; low frequency connectors; mixed frequency connectors.


8. According to the industrial system is divided into: aviation, marine, defense connectors; household appliance connectors; automotive connectors; communication connectors; energy connectors; industrial connectors; office supplies connectors; data transmission connectors; enterprise network connectors; home entertainment equipment connectors; intelligent residential use connectors; automation and control connectors; lighting connectors; medical connectors; personal computer connectors. Railroad transport connectors; solar energy connectors; test connectors; nuclear facility connectors...


9. Classified according to current-carrying capacity: signal terminal and power terminal; power connector and signal connector.


10. According to the number of connectors used in the connection is divided into: one set of connectors (such as board edge connectors), two sets of connectors, three-piece connectors


11. According to the specific use, such as IC connectors (PGA), IO connectors (Displayport, VGA, DVI, HDMI, USB), fiber optic connectors, filter connectors, CATV connectors, backplane connectors, memory sticks / memory connectors (DDR, SIMM, DIMM, PCI, SIM) daughter board connectors; HDTV connectors Flexible circuit board connectors, network cable connectors (RJ45), audio video (AV) connectors, battery connectors


12. By size or version: large connectors, standard connectors, small connectors, ultra-small connectors, micro connectors, ultra-micro connectors


13. by polarity: male / anode connectors; female / cathode connectors; bi-sexual connectors.

                                                      Inspection of terminal wire prevention connector fixing

Connection terminal is an accessory product used to achieve electrical connection, industry is divided into the category of connector. If the terminal is poorly fixed, it is likely to cause instantaneous power failure, poor contact and other accidents, and may even disintegrate the product. Therefore, manufacturers have to carry out a series of checks to prevent poorly fixed connectors.

1) Interchangeability check


Interchangeability check requires the same series of matching plugs and sockets are able to plug and connect with each other, from which to find out whether there is due to the insulator, contact parts and other parts of super poor size, the lack of parts or assembly is not in place and other reasons caused by the inability to plug, positioning and locking, even under the action of rotational force caused by the consequences of disintegration. To avoid major failure accidents.


2）Torque resistance check


Endurance torque check is a kind of assessment terminal structure reliability is very effective inspection method. According to the standard should be sampling samples of each batch of endurance torque inspection, timely detection of problems


(3) crimp wire through test


According to the technical conditions of the product, the production plant in the finished product before leaving the factory to deliver the plug (seat) samples of all installation holes for through testing, that is, the use of loading and unloading tools will be crimped with pins or jacks of the wire touch intended for the position, check whether it can be locked. This test requires a pull-off force check root by root. To avoid crimped wires sent to the place, or sent to the place after the lock can not be locked, unreliable contact and other failures.


Without a reliable connection terminal, there is no reliable system engineering

                                                     What do I need to pay attention to when producing pin-row connectors?

In the design of electronic connectors, the row of pins is an extremely important part. Because it is often the key to the entire connector through-conductivity - contact. The stability and safety of the performance of the pin depends on the quality of the entire connector. Therefore, in the factory production should pay attention to the various considerations of the row of pins.

1. Thermal design. Pin connector will work in the heat, the temperature is too high will affect the decay rate and stability of LED, so the PCB board heat dissipation, case ventilation heat will affect the connector.
2. Check the anti-static performance. Check whether the row of pin connectors have good anti-static measures.
3. Pin connector supports a smaller current value of 20mA, it is generally recommended that its maximum use of current for not more than 80% of the nominal value, especially for point spacing is very small in electronic equipment, due to poor thermal conditions, should also reduce the current value.
4. Control the verticality of the board and pin. For direct-insert pin connectors, over the furnace to have sufficient process technology to ensure that the LED is perpendicular to the PCB board.
5. Over the wave soldering temperature and time. Must strictly control the wave front welding temperature and over the furnace time. General preheating temperature 100 ℃ ± 5 ℃, the maximum does not exceed 120 ℃, and preheating temperature rise requires a smooth, welding temperature of 245 ℃ ± 5 ℃, welding time is generally recommended that it is best not to exceed 3 seconds.

                                     Can the customized data line be used for sample test first?

  Recently, in the communication with customers, there are always customers who have questions. Could you please do the product test first?When we receive the customer's intention to customize, we will make samples according to the drawings provided by the customer or the customer's customized requirements. After the customer receives the samples for repeated testing, we will arrange full production. So we can rest assured, from the intention to delivery we are professional!The following one is the luminous data line made from the sample recently. The customer is very satisfied with it and it has been mass produced.

  USB extension cord mainly consists of two parts: one network cable and two USB ports. The interface is connected to both ends of the network cable and can be any combination of USB male head or USB female head as required.

Introduction: USB extension cord with 128 shielding layer. Can achieve better shielding and transmission effect, with a USB processing chip, by extending the standard USB port to connect all USB devices, the longest distance can reach 10 meters, using USB Cable can be through the standard USB interface between the two hosts to transfer data.

Purpose: protect the socket: the external electronic devices do not need to be directly inserted and unplugged on the host computer, which not only protects the interface of USB devices, but also facilitates the use.Compared with previous interfaces such as serial, parallel, infrared, it can provide higher transmission speed and easier to use user interface, built-in usb-usbUSB extension cable connection function directly, speed is 50 times of ordinary parallel port cable, support hot plug the USB Network Link can very quickly and easily for small office and home office, mobile users. The Network environment such as game, through which users can share the hard disk files, printer, peripherals, and other support Network Shared equipment. In the case of only two computers, can direct and rapid transmission through GeneLink program file, complete function contains the Network card, support the TCP/IP, NETBEUI, IPX/SPX network protocol, support USB1.1, high-speed transmission mode 12MBS, sharing network resources, such as ADSL,MODEM, cd-rom, printer, scanner, etc.

Yachuang electronics co., ltd. is a professional development, design, manufacture and sales of USB2.0 data line, USB 3.0 data line, Type C data line, network line, data line and other various connection line company, has a complete and scientific quality management system, through the ISO9001 international quality management system certification; National hotline: 86-755-88210101-2

The red and black lines are power lines, and the white and green lines are used to transmit data. 

The colors of the four wires in the mobile phone charger are: red, white, green and black. Wherein two wires are data wires, two wires are power wires including grounding. 

Red line: positive electrode of power supply (the identification on the wiring is +5V or VCC). 

 White line: negative voltage data line (identified as Data-or USB Port-). 

 Green line: positive voltage data line (identified as Data+or USB Port+). 

 Black Line: Grounding (Identified as GND). 

 Simple can be summarized as: red (power supply), green (data line 1), white (data line 2), black (ground)

Reference material:https://baike.baidu.com/item/数据线/391946?fr=aladdin

Vietnam Mobile Phone Data Line Factory is a company specialized in developing, designing, manufacturing and selling USB2.0 data lines, USB 3.0 data lines, Type C data lines, network lines, data lines and other connection lines. It has a complete and scientific quality management system and has passed ISO9001 International Quality Management System Certification. The national consultation hotline: 86-755-88210101-3, you can also click on the online consultation details:

The use of mobile phone data line is very much, but many friends do not know what chip the mobile phone data line uses, so let's get to know what chip the mobile phone data line generally uses.

Chips commonly used in mobile phone data lines:

1. With IC: With central control chips, ordinary chips are 2303, 2101, 3116. Without plugging in mobile phones, computers can recognize wires. Because the price of an IC is more than 10 yuan, the price is more expensive than that without IC. The working principle of data line with chip is USB to COM, which converts USB interface into serial port and displays it on computer.

Typical models: Samsung E638 series, D418 series mobile phone data line; NEC N610 series; Siemens 25 series, 55 series; Sony Ericsson mobile phone data line; Panasonic mobile phone data line; Lenovo mobile phone data line and so on.

2. No IC (Central Control Chip): No central control chip, you have to plug in the mobile phone to recognize the line, the price is cheap.

Typical models: Samsung CDMA series, D500 series; Motorola E398 series, V3 series; Nokia DKU-2; NEC N720 series; Siemens 65 series and so on.

3. Special chips: non-ordinary popular chips, special type chips such as DKU-5, CA-42, DCU-11 and so on.

The chip of mobile phone data line will be introduced here. Different chips of mobile phone data line will be different. We can choose them according to our own needs.

       Nowadays, young people like to charge their mobile phones while playing with them, which leads to cell phone fever and so on. Many friends think that this may be related to cell phone data lines. Is this the case? Here's Yachuang Electronics to introduce it to you.

Causes of cell phone charging fever:

  1. Because the smartphone screen, game application, cell phone signal and so on we use are very power-consuming, long-term use, especially playing games, can easily cause the cell phone to get hot, and it is playing games while charging the cell phone with the cell phone data line, which not only affects the battery life, but also is not very good for the cell phone.

  2. The cell phone data line used is overheated, so it's better to try a new one. Of course, we can't use inferior cell phone data line. Some small workshops or those retailers who recycle and resell the cell phone data line have no guarantee of quality.

  3. In the hot summer weather, using mobile phone data line to charge mobile phone for fear of burning can be placed in a place where air flow is relatively large, charging in a cooler environment, such as air-conditioned rooms, places where fans blow, avoiding places where heat sources are relatively large, which is conducive to mobile phone data line and mobile phone heat dissipation, to avoid the occurrence of valley fever.

  4. Avoid overcharging. When the mobile phone is full of electricity, we should get into the habit of pulling out the data line and charger in time, especially before going to bed and the next morning.

  5. If the cell phone fever is not due to the cell phone, you can check and click on the cell phone data line. It may be that the quality of the cell phone data line is too poor, and it can also cause the cell phone to heat when charging.

   Whether the heating of mobile phone charging is related to the mobile phone data line is introduced to you. Based on the above, we can find that there is a certain relationship between mobile phone charging and the mobile phone data line, but the main reason is the mobile phone.

      Mobile phone data line is used every day, and you are not unfamiliar with it. But some friends encounter such a problem. What should we do if the mobile phone can not dial after using the mobile phone data line? Here's Yachuang Electronics to introduce it to you.

    Solutions to the problem of unable to dial after using mobile phone data line:

    First check whether the settings of the mobile phone are correct, such as checking whether the network settings are selected correctly, if you can not dial correctly under the current network settings, you can try another network.

    Then check whether the current location is within the scope of mobile network operation. If you are not in the area covered by the network, of course, you can not dial correctly.


    In addition, check the details of other aspects carefully, such as whether the mobile phone has set restrictions on calls, whether the call cost has reached the upper limit, and whether the SIM card has been inserted correctly. If the phone can not be dialed correctly after checking, and then check whether the keys of the mobile phone are in good condition, it is really impossible to send the mobile phone to a professional repair station, so that professionals can repair it.

    Above is the solution to the problem that the cell phone data line can not be dialed after use. If you encounter such a problem, you can refer to the above several methods for checking.

Various electrical connectors are key components in numerous electronic devices, because they can realize and protect the transmission of electrical signals. From connecting key computer components to connecting wires in the cars we drive, they play a wide range of roles, and they serve different applications. Although some designs are simple, connectors are usually implemented in complex electrical systems. Therefore, connectors must be durable and reliable, and easy to assemble and use. Although not all electrical connectors can withstand extreme environments, a large number of connector specifications ensure that suitable application types can be found for customized devices.

8P8C connector:

The name of the 8P8C connector comes from the phrase "eight locations, eight conductors". As the name implies, this connector has eight possible locations, each with a corresponding conductor. It is a modular connector originally used for telephone line applications, but it can also be used for a variety of other functions, such as Ethernet jacks. All four sizes of modular connectors are named according to their location and number of conductors, including sizes 4-, 6-, 8-and 10-. For example, 10P8C will have 10 locations and eight conductors.

The 8P8C connector itself includes plug and socket connections, with plugs and corresponding sockets. The plug has eight contacts, aligned with the eight wires of the socket, and transmits current through the connector. In addition to the use of Ethernet jacks, 8P8C connectors are also commonly used in computer applications and communication cables.

Class D micro connector:

Similar to 8P8C connectors, D-subminiature connectors are usually used for computer applications, but with different capacities: they are used as critical ports on modems (RS232). Despite the term "miniature", D-miniature connectors are now relatively large compared to other more modern computer connectors.

D-miniature connector protects and shapes connectors together with D-shaped metal components. D-miniature connectors consist of two or more rows of pins (or sockets, depending on the sex of the connector). If there is a pin, the connector is a head, called a plug, and the corresponding receiving device is called a socket, which accommodates the contacts that the pin must connect in order to transmit electricity.

USB connector:

Universal Serial Bus Connector is a small interface device that can be used to connect more than 127 devices to a computer. Standard laptops usually have at least two USB ports to support external connections through USB connectors, while standard desktop computers have four USB ports. Because USB connectors can be inserted and pulled out when connected devices are opened, they are widely used in computer systems, which constantly need to be connected and separated from external devices, which is necessary for data transmission.

Needle arrays are the most commonly used connector connectors in the electronic industry. In the process of manufacturing or using, needle arrays are often affected by more factors, such as the pulling of welding wires in manufacturing process and the thermal deformation force in SMT process.

In addition, the insertion or vibration of the pin-and-bush connector products in the use process will produce various force values, which will cause the contact terminals (conductors) to deviate from the working position and lead to the failure of the product connection function.

Key Points of Connector Product Testing:
                     
1. The test object is the whole pin-and-bush connector product, especially the insertion contact point.

2. The test action axis is the normal direction of the needle-row connector products, such as the positive and negative direction of terminal assembly.

3. The general speed is 25.4mm/minute unless special pin-and-bush connector products need to be specified.

4. In the destructive testing process, the specification generally requires a minimum value (4.9N Min.).

The definition of terminal retention force in connector products is to ensure that terminals (conductors) are fixed in plastic. Terminals already assembled in plastic are processed and manufactured, such as pulling during welding or product handling, SMT process and use process, such as male-female insertion process.

The vibration and impact of pin-row connector products in processing and manufacturing will be affected by external forces, so the retention of terminals and plastic must be sufficient, otherwise the terminal will be affected by external factors to produce back PIN, leading to interruption of connection or failure of connection function.