USB, the abbreviation of universal serial bus in English, is an external bus standard, which is used to regulate the connection and communication between computers and external devices. It is an interface technology applied in the field of PC.

Universal serial bus (USB) is a new data communication mode which gradually replaces other interface standards. It was jointly developed by Intel, Compaq, digital, IBM, Microsoft, NEC, Northern Telecom and other computer companies and communication companies in 1995, and gradually formed industry standards.

As a kind of high-speed serial bus, USB bus’s extremely high transmission speed can meet the application environment requirements of high-speed data transmission, and the bus also has the advantages of simple power supply (bus power supply), convenient installation and configuration (plug and play and hot plug are supported), simple expansion port (127 peripherals can be expanded at most through the hub), diversified transmission modes (4 transmission modes), as well as the advantages of good compatibility (downward compatibility after product upgrade).

Since its introduction, universal serial bus has successfully replaced serial port and parallel port and has become one of the standard expansion interfaces and necessary interfaces for a large number of computers and intelligent devices in the 21st century. Now it has developed to USB version 3.2. USB has the advantages of fast transmission speed, convenient use, hot plug support, flexible connection, independent power supply, etc. it can connect a variety of peripherals such as the keyboard, mouse, large-capacity storage device, etc. the interface is also widely used in smartphones. The interaction between intelligent devices such as computers and external data is mainly based on network and USB interface.

Main Features of USB Connector

1. Polarization

The USB conector can only be nominally inserted in one way. It is possible to force a wrong connector, but this can cause damage to the device.

2. At least four contacts

All USB connectors have at least four contacts (some USB models may have five, USB 3.0 connectors or more), which are used for power, ground and two data lines (D + and D -). The USB connector is designed to transmit 5V up to 500mA.

3. Shielding

The USB connector is shielded, so it provides a metal shell that does not belong to the circuit, which is very important to keep the signal intact in the environment with a lot of electrical “noise”.

4. Powerful power connection

It is very important for the power pin to establish a connection before the data line to avoid trying to power the device through the data line, which is taken into account in the design of all mil spec usb connectors.

5. Mould strain relief

All USB cables are plastic-wrapped at the connector to prevent pressure on the cable and damage to the electrical connection.

Sunkye is a professional connector manufacturer, contact us now!

If you want to know more types of mil spec connectors, please visit our website.

Sunkye is a global solutions provider of d sub connector solutions and differentiated products to the world-wide interconnector industry.

Automotive Electrical Connectors

Aerospace Electrical Connectors

Military/Defense Connectors

Aircraft Connector/UAV Connector

Oil And Gas And Marine Connectors

Medical Grade Connectors

Custom ConnectorsCustom Connectors

Custom Connectors

Automation and Control Connectors

SUNKYE – MIL SPEC CONNECTORS MANUFACTURER

Sunkye is uniquely qualified to deliver turnkey custom solutions and Mil-Spec military connectors manufacturer for a complete range of high-performance applications. Our industry-leading materials knowledge, engineering design experience, and testing capabilities are key to achieving reliable service in the most extreme environments. You’ll find a large selection of popular Mil-Spec millitary connectors such as MIL-DTL-83513 micro connector, MIL-DTL-38999 iii connector, MIL-DTL-32139 nano connector, MIL-DTL-26482 automotive connector, d-sub, micro-d connectors, and more, available in standard or custom configurations of mil connector.

MIL-DTL-83513 Micro D Connectors

Sunkye TwistPin equipped MIL-DTL-83513 Micro-D subminiature connectors features outstanding mating performance, durability, and minimal contact resistance.

MIL-DTL-32139 Nano D Connectors

Sunkye as an aerospace connectors manufacturer, its MIL-DTL-32139 Nano D connectors series is also ideal for military, industrial, medical or off-shore which require extreme miniaturization, space or weight saving and reliability.

Twist Pin Connectors

Sunkye has teamed twist pin Technology with these custom designed insulators capable of meeting the extreme mechanical and electrical needs in the harshest military/aerospace and industrial applications. Sunkye is an aerospace connectors manufacturer.

SUNKYE’S FAMILY

Sunkye International was originally developed in the early 1950’s and was one of the twist pin, mil grade connectors including mil spec micro D connector and mil spec nano D connector manufacturing companies to license this technology and improve it. Sunkye focuses on custom military conector hermetico assembly and standard Mil-Spec military connectors for quick turnaround to help you reduce your acquisition cost and lead times, simplify your assembly, and improve the quality and reliability of your military designs. Sunkye focuses on fully automatic assembly connector’s technology and developing, till nowadays totally 14 lines are under manufactory. Output capacity is 56.92secs/EA, 369,000EA/Month.

As a professional connector manufacturer especially one of the military connector manufacturers, all Sunkye milspec connectors are MIL-DTL compliant and are assembled with precision machined Becu twist pins assembled into high-temperature insulators. Through the combination of right angle pin headers plugged into vertical sockets, customers can create perpendicular mate configurations.

FPC electrical test connectors are also known as flexible circuit printed connectors, it is a flexible pcb connector. and the most prominent characteristics are the high cable density, thin and light shape and high transmission speed. The FPC connector with high density and small spacing is the main development direction. It can ensure the current fluency and transmission reliability to the greatest extent in use. It also plays the role of transforming electrical signals into optical signals. Therefore, the market demand is growing.

FPC connectors are widely used in various fields and play an important role in electronic medical equipment fpc (computers, LCD displays, scanners), mobile equipment (mobile phones, tablets, laptops), printing equipment (printers, copiers), navigation equipment (vehicle GPS navigation)  and medical equipment. Therefore, the FPC connector must be tested before application to ensure that the performance and quality of the FPC connector can meet the standard.

High-current leaf spring micro pin module can be adopted in FPC connector test. The reason is that the high-current leaf spring micro pin module has a strong over-current ability, which can meet the demand of high current transmission by FPC connector test; secondly, for small spacing FPC connectors, the value of high current spring micro pin module can cope with the minimum spacing of 0.15mm, and the connection is stable and continuous; the key point is that the high current leaf spring micro pin module has an average service life of more than 200 thousand times, which can effectively deal with high frequency test of FPC connectors. The high current leaf spring micro pin module can not only improve the testing efficiency, but also reduce the cost.

There are many specifications for FPC connectors, and the number of pins for different types of FPC connectors varies. The connectors are specially different in use. For example, the connection method of FPC connectors can be divided into upper connection, lower connection and double-sided connection, which can be identified by observing the contact surface of metal terminal pin of the FPC connector. The the contact surface of the metal terminal is on the top of the FPC connector if it is the upper connection, while the contact surface of the metal terminal is below the FPC connector if it is the lower connection. In the double-sided connection, the connection mode of front-insertion and back-open supports the connection of upper connection and lower connection. Double-sided connection is mostly used in FPC connectors among these connection modes.

The circuit diagram of FPC connectors is becoming more and more subtle, and its application requirements are also more precise. FPC connectors need to be used skillfully, and there are several points that need special attention:

1. In the use process, insert the pin of the FPC connector slowly at a right angle. Pay attention not to inserting the pin obliquely, so as to avoid that the pin is not connected in place; do not pull or unplug the connection cable at will, which may cause the data exception or data loss of the FPC connector.

2. The FPC connector is composed of multiple pins. Please avoid swaying or shaking the connector in use, because it may cause the offset of the FPC connector connection position and affect the use.

3. Once the pin of the FPC connector is broken or bent, it should be replaced immediately to avoid unnecessary hidden danger. Otherwise, the transmission of FPC connector circuit will be poor, which will cause the short circuit and overburning of the connector.

4. When opening the cover of FPC connector, too much force should be avoided. Overexertion will deform and damage the cover, and it may also lead to the break of connector terminals.

5. In the welding of FPC connectors, it is necessary to pay attention not to adding too much solder in reflow soldering when operating the bonding pad, otherwise, the connector terminal can’t be welded stably and insufficient soldering phenomenon may also occur.

Sunkye FPC pcb right angle connectors have the flexible characteristic. As a carrier of current transmission, FPC connectors can play an excellent role in many fields. In addition to paying more attention to the use of FPC connectors, we should master the performance more.

As a connector manufacturer, we can offer types of related products for sale, if you have needs, please contact us.

Mil Spec Definition

Consistent with the high standard tradition of military products, mil standard connectors are designed specifically for the needs of the armed forces for durable and reliable products. These connectors are of different shapes and sizes, and they are used in many fields, from communications offices to the front lines of war to naval warships. Like warriors, mil standard connectors are designed to be robust and accurate.

The first mil connectors were developed for aviation and tactical service applications in the 1930s. The land-sea series (AN type) had a far-reaching impact on all the connectors and set standards for modern military circular connectors. These connectors, called mil standard connectors (MIL-STD), are often used in aviation, industry, navigation and automotive industries. The most common types of connectors for military applications include round mil D38999 connectors or rectangular (M24308) connectors. Mil spec connectors reflect the military’s emphasis on consistency, accuracy and strength. And in a series of applications, they have assisted the army, Navy and air forces in their operations. These connectors are manufactured in accordance with military specifications, and the military component codes printed along with them make them easy to identify and purchase in many commercial products.

Sunkye is a qualified custom connector manufacturer, who supports custom connectors for a complete range of high-performance applications. A wide variety of military connector options are available to you, feel free to contact us.

For connectors for special needs applications, they must include moisture resistance, heat shrinkage, and welding:

1. Moisture proof special connectors

The special moisture-proof joint connector is filled with silicone material to help prevent moisture, dust and other debris from entering the connection.

2. Heat shrink joint connector

In heat-shrinkable tubes, heat-shrinking involves melting the lining. When heated, the lining becomes a gelatinous substance, sealing off moisture and dust, and providing an extremely strong adhesive to hold the wires in the military spec connector.

3. Solder joint connector

The solder joint mil connector contains heat shrinkable and low melting point solder and a protective gland for hermetic connection. These welded joints are unique in that many of these welded joints can often be applied without crimping and can be sealed simply by heating.

For more technical knowledge of connector, Sunkye will continue to edit and post it on the official website to share with you. If you need to buy connector products for special needs, please call our hotline: + 852-69486797.

Sunkye is a professional custom d sub connector manufacturer integrating R & D, production, sales and service. It has been focusing on connector R & D and has a rich product category that can fully meet the needs of various high-end customers.

In the process of establishing an error prevention work system in automotive wire harness design, it is mainly divided into structure error prevention, component error prevention, color error prevention, and size error prevention. It can combine different requirements to establish a targeted error prevention control system.

1. Structural error prevention

In the process of designing automotive wiring harnesses, in order to effectively comprehensively deal with connectors in adjacent positions, it is necessary to improve the processing effect of automotive connevtions of the same type and different structures in conjunction with the electrical end to ensure that the error prevention effect can be fundamentally improved and the design effect On the basis, it is necessary to control and manage the electrical side of different structures, to improve the connection of the same type as much as possible, and to reduce the types of middle terminals that appear in the production process of the wiring harness.

2. Component error prevention

In order to fundamentally ensure the application effect of automotive connection, it is necessary to analyze and actually judge the design selection work, and fundamentally improve the basic level of error prevention effects in the design effect.

First, in the process of electrical connector design and selection, it is necessary to combine the electrical end application requirements to ensure that connectors with a certain difference in shape are selected, and a highly compatible mating processing mechanism is established to ensure the effectiveness of the mating control work. . In addition, the shape of the tail must be effectively improved to enhance the practical application value of the overall shape and improve the error prevention effect.

Second, it is necessary to analyze and analyze the self-locking or back cover of the military grade connector, effectively integrate the connector body project, and select a different back cover or self-locking system, and then check the self-locking size parameters, outlet direction parameters and guide grooves Processing, combined with color error prevention can improve the overall error prevention effect.

3. Color error prevention

After the actual automotive wiring harness design work is carried out, the technical department should make overall analysis and judgment based on actual requirements, effectively integrate the color system, rationally improve the intuitive processing mechanism, and hang on the color error prevention. In other words, the designer must supervise and manage the limitations of the design process of parts and automotive connectors, improve the effectiveness of the error prevention work, and comprehensively analyze the color error prevention. Only by ensuring that the color design and marking work meet the requirements for error prevention can the effectiveness of the error prevention effect be improved.

4. Size error prevention

The so-called dimensional error prevention is to comprehensively deal with the parts where error prevention may occur. The relevant designers must determine the branch of the differential function connector, and use the direction of the cable outlet or the buckle to guide and control the fixed parts to improve the reasonableness of the prevention. The combined effect of the wrong effects. The most important thing is that in the ideal size system, it is necessary to constrain and manage the mating of the waterproof automotive connectors and the electrical end to ensure that the connectors can meet the requirements on the basis of consistency, and the overall mating effect can also meet the size prevention Wrong job goal.

5. Docking and error prevention

In order to effectively achieve the goal of automotive wiring harness design, the design process must also monitor and control specific work processes. In particular, some design work that cannot be implemented for shape error prevention, color error prevention, and size error prevention must integrate specific automotive connector design work, improve the comprehensive level of error prevention functions, and lay the foundation for comprehensive optimization of subsequent processing effects. In addition, it is necessary to carry out a comprehensive analysis of the connector in accordance with the basic requirements such as design principles and layout space, improve the operation effect of changing the position, and improve the anti-fault prevention effect.

In addition, in the process of designing the wiring harness, the design department must also centrally manage the banding error prevention, the outlet direction, and the type of fixing to effectively improve the fixing effect, ensure the optimization of application efficiency, and maintain the wiring harness design connector processing effect.

As a professional connector manufacturer especially one of the military connector manufacturers, all Sunkye milspec connectors are MIL-DTL compliant and are assembled with precision machined Becu twist pins assembled into high-temperature insulators.

New energy vehicles have developed to this day, and more and more new energy vehicles have entered our lives.

Whether it is extended-range electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, hydrogen engine vehicles, pure electric vehicles, or other new energy vehicles, a large number of connectors are required. Different from traditional fuel vehicles, electric vehicles often have higher voltage and current platforms, so new energy vehicles often have a large number of high-voltage connectors.

For example, there are small circular connector and hermetic rectangular connectors in terms of shape, and there are also high-frequency connectors and low-frequency connectors in terms of frequency. Different industries will also have different types.

There are a variety of high voltage electrical connectors on the whole vehicle, which can be divided into two types of connections according to different wiring harness connection methods:

1. Fixed type directly connected by bolts;

Bolt connection is a connection method that we often see on the whole vehicle. The advantage of this method is its connection reliability. The mechanical force of the bolt can withstand the impact of automotive-grade vibration, and its cost is relatively low. However, bolt connection requires a certain amount of space for operation and installation. As the area becomes more platform-oriented and the interior space becomes more reasonable, it is impossible to leave too much installation space. It is not suitable from the point of view of batch operation and after-sales maintenance, and the more bolts, the greater the risk of human error, so it also has certain limitations.

Similar products can often be seen in early Japanese-US hybrid vehicles. Nowadays, many similar connections can still be seen in the three-phase motor cables of some passenger cars and the battery power input and output cables of some commercial vehicles. This type of connection generally needs to use an external box to achieve protection and other functional requirements, so whether to use this method needs to be determined from the perspective of the design and layout of the power line of the vehicle, combined with after-sales requirements;

2. Plug-in connection;

In fact, there are two types of mating methods: circular mating and chip mating. The PCB plug-in connectors ensure the safety of the electrical connection by connecting two terminal shells, thereby providing a connection with the wiring harness. Because the plug-in connection can be directly plugged in manually, from a certain perspective, it can reduce the use of space (especially in some narrow operating spaces);

From the direct contact between the male and female ends in the early days, it has transitioned to the method of contacting materials with elastic conductors in the middle. The contact method with elastic conductors in the middle is more suitable for larger current connections. Better conductive materials and better elastic design structures are beneficial to reduce contact resistance, thereby making large current connections more reliable.

We can call the middle elastic conductor contact. There are many ways of contact in the industry, such as the familiar spring type, crown spring, leaf spring, wire spring, and claw spring.

Sunkye ,as one of the top military connector manufacturers,focuses on fully automatic assembly connector’s technology and developing, till nowadays totally 14 lines are under manufactory.

The type of termination determines the nature of the connection between the contacts in each connector assembly. Options vary depending on cost, ease of connection and disconnection, and protection against tampering, wear and environmental damage.

Due to the different purpose and function of the connection, the circular electrical connectors has a variety of contact dimensions and the diameter of the housing ruler.

Like other mil spec electrical connectors, different types of circular connectors have many different termination types. Different termination types bring different performance, so what are the termination types of circular connectors?

1. Insulation displacement: the pin in the plug penetrates or pushes the insulation around the corresponding jack in the socket, contacts and forms electricity

Gas connection.

2. Welding: using an intermediate metal with a low melting point, the metal contacts two contacts, thus creating a current between the elements

Build permanent access.

3. Winding: the wire connected to the socket side of the military spec connector is connected to another terminal. The wire is wound around the socket of the plug,

So the exposed part contacts the jack.

4. Screw or lug: external hardware adheres to threaded (screw J) or unthreaded (lug) holes in the protective cover around each terminal to secure the connection in place.

5. Crimping: the contact barrel is compressed around the conductor to complete the electrical connection.

Sunkye focuses on custom connectors military assembly and standard Mil-Spec connectors military for quick turnaround to help you reduce your acquisition cost and lead times, simplify your assembly, and improve the quality and reliability of your military designs.

In the market economy, the market is undoubtedly the vane of an enterprise and the decisive factor in the allocation of enterprise resources. Understanding and studying the market is the premise of enterprise operation.

In the past, China’s connector industry mainly relied on OEM and imitation, and its awareness of market research was weak. As China enters the transitional period, industrial upgrading is urgent. R&D innovation in the manufacturing industry is the second choice. China has to launch a big data strategy this year because of the need of the situation. The market information will be more detailed, accurate, open and well organized to conduct market information research in the connector manufacturing industry. Market information data of the connector industry will be generated regularly.

Besides, we should do a good job in the development trend of downstream industries and the research of new markets which will be bred by new cable connector technologies. These data and information are undoubtedly indispensable for the long-term operation of enterprises and the healthy development of industries. It is necessary to provide market information of the connector industry, guide the healthy development of industry, service connector industry, realize the service of the manufacturing industry, and help the upgrading of the connector industry.

We know that the material has a great influence on product performance. Product performance depends on the structure and material of the product. When driven by miniaturization and widely used in the simulation, the limited space of the product will be used to the limit, or the product structure will be optimized to the limit. In this case, the competition of product performance is the competition of materials, which shows the importance of material research. Especially with the development of nano miniature connectors, the microstructures of materials are obviously changed, and the properties of materials are significantly improved.

These new materials/coatings undoubtedly enrich the design technology of the connector interface and provide more choices for connector interface design.

Sunkye International was originally developed in the early 1950’s and was one of the twist pin, mil spec connectors including mil spec micro D connector and mil spec nano D connector manufacturing companies to license this technology and improve it.

Features of tin connector fog: the appearance is foggy, the crystal is rough, easy to leave fingerprints, the general thickness is 5um, 8um, or even higher, and the tin plating thickness varies according to its use. Fog tin plating is better than bright tin plating in solder ability and whisker resistance, but it is afraid of scratches and fingerprints.

Features of standard power bright tin connector: bright appearance, good-looking, smooth, fine crystal, not easy to leave fingerprints, with a general thickness of more than 3um,and the connector plating varies according to its use. General pure functional parts will choose fog tin, need to solder but belong to the appearance of parts will choose bright tin.

The difference between the two:

1. Polish is used for connector bright tin, and there are more organics in the metal, so the weld ability is poor; no polish is used for fog tin, and there are less organics in the metal, so the weld ability is good.

2. The former is mainly alkaline tin plating, the latter is mainly acid bright tin plating. However, they are all pure tin coatings with poor performance at low temperature. In actual use, it is found that the high temperature resistance of the tin mist is better than that of the bright tin. Sometimes the bright tin will melt when passing through the tin furnace, but the tin mist is better.

3. The electroplating time of terminal fog tin will be longer, the fog tin will be more fine, the welding performance will be better, and the temperature resistance will be higher.

4. In appearance, the bright tin of military grade electrical connectors iron shell is more beautiful than that of tin mist; the wetted tin mist is better, and the bright tin on the surface after SMT (baking) test is easier to turn yellow than that of tin mist, while the surface of tin mist is easier to be attached with dirt and inclusion if it is not carefully received due to structural factors.

5. Terminal fog tin is mainly used for its reliability after welding, which is less likely to produce capillary phenomenon compared with bright tin.

6. Compared with bright tin, terminal tin mist is more effective in inhibiting the growth of tin whisker; in terms of electroplating cost, the cost of tin mist is slightly higher.

7. In the view of the use end, bright tin is more beautiful; fog tin is more stable.

Sunkye is a reliable mil dtl 83513 micro d connectors manufacturer, feel free to contact us.

As one of the top military connector manufacturers,our industry-leading materials knowledge, engineering design experience, and testing capabilities are key to achieving reliable service in the most extreme environments.