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THE DEVELOPMENT OF 5G IN CHINA BRINGS OPPORTUNITIES FOR CONNECTORS

On the one hand, the number of 5G base stations in China has increased significantly. 5G communication spectrum is mainly distributed in high frequency bands. The higher the frequency, the faster the signal attenuation, and the smaller the coverage area at the same power.

In the 2G, 3G and 4G era, the spectrum of China ’s three major operators is mainly distributed below 2.6GHz, and the spectrum of China Unicom and mobile in the 5G stage is in the 3.4-3.6GHz range. With the increase of frequency, the number of 5G base stations will increase significantly and is expected to reach twice the number of 4G base stations.

On the other hand, the demand for 5G also brings the technological upgrade of connectors. Under the characteristics of 5G low-latency and high-bandwidth transmission, the data transmission volume has been greatly improved, and the traffic density of 5G has been increased to 100 times that of 4G. With the miniaturization and integration of 5G base stations, the space occupied by the connector is further increased. Compression, electromagnetic interference and heat dissipation have also become important issues.

Therefore, 5G has higher requirements for the density, transmission rate, heat dissipation, electromagnetic interference resistance and reliability of the connector, and the value of the connector has been further improved.

With the increase in the number of base stations and the increase in technical requirements, the connector market is expected to grow significantly and enter a high-boom cycle.

According to the forecast of the Ministry of Industry and Information Technology of China, domestic operators’ investment in 5G will be 1.5 times that of 4G, and the total investment will reach 1.5 trillion yuan. As for the pace of demand, with the start of 5G construction in 2019, the scale of 5G base station construction will also Will grow rapidly.

Military connector manufacturers have deep technical accumulation and strong competitiveness, which will fully benefit from the growing demand for connectors in the communications field.

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.

CONNECTOR ERROR PROOFING METHOD IN AUTOMOTIVE WIRING HARNESS DESIGN

In the process of establishing an error prevention work system in the design of automotive wiring harnesses, 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 connectors 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 connectors, 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 automotive 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 automotive 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 automotive connector 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,Sunkye 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.

OVERALL PERFORMANCE PARAMETERS OF CONNECTOR

1.Avionics Connectors Mechanical parameters made by Sunkye

Mating force

Insertion force is an important mechanical property for measuring connector performance. The insertion force is divided into insertion force and extraction force, and the requirements of the two are different. From the use point of view, the smaller the insertion force, the better, but the extraction force should not be too small, otherwise it will affect the reliability of the contact.

Mechanical life

Mechanical life is actually a kind of durability index. It is based on one insertion and one extraction as a cycle, and judges whether the connector can normally complete its connection function (such as contact resistance value) after the specified insertion and removal cycle. .

It is related to the structure of the contact (positive pressure), the quality of the coating at the contact site (coefficient of sliding friction), and the accuracy (alignment) of the size of the contact arrangement.

2.Electrical parameters

Contact resistance

High-quality electrical connectors should have low and stable contact resistance. The contact resistance of a connector ranges from a few milliohms to tens of milliohms.

Rated current

Depending on the material and cross-sectional area of the terminal, the larger the cross section, the smaller the resistance per unit length, and the less heat generated by the current flow, the smaller the temperature rise of the terminal, and the larger the current can be conducted.

Dielectric strength

The index for measuring the insulation performance between the contacts of the electrical connector and between the contacts and the housing, the order of magnitude is from several hundred megohms to several gigaohms.

Dielectric strength

Also called withstand voltage, dielectric withstand voltage, is the ability to withstand the rated test voltage between the contacts of the connector or between the contact and the housing.

Other electrical parameters

Electromagnetic interference leakage attenuation is to evaluate the electromagnetic interference shielding effect of the connector, and it is generally tested in the frequency range of 100MHZ to 10GHZ.

For RF coaxial connectors, there are also electrical indicators such as characteristic impedance, insertion loss, reflection coefficient, and voltage standing wave ratio.

3.Environmental parameters

Temperature resistance

At present, the maximum working temperature of the connector is 200 ° C, and the minimum temperature is -65 ° C. ——Temperature resistance test, temperature cycle test

Resistance to moisture and moisture

The intrusion of moisture will affect the insulation performance of the connector and rust metal parts. ——Constant Damp Heat Test, Alternate Damp Heat Test

Resistant to salt spray

The connector works in an environment containing moisture and salt. The metal structure and contact surface treatment layer may cause galvanic corrosion, which affects the physical and electrical properties of the connector. ——Salt spray test, corrosive gas test

Resistant to vibration and shock

Vibration resistance and shock resistance are important properties of electrical connectors. They are particularly important in special application environments such as aerospace and railways. It is an important indicator of the robustness and electrical contact reliability of the mechanical structure of connectors. ——Vibration test, physical shock test

BRIEF INTRODUCTION OF STRIP CONNECTOR

The strip connector generally realizes the connection between the printed board and the printed board, cooperates with the socket to complete the connection of the board and the cable (burning program), and cooperates with the circuit breaker to complete the board jumper function.

1.Classification of strip connectors(space grade connectors)

Sort by spacing

2.54mm, 2.00mm, 1.27mm, etc.

Classification by termination

Through hole (THT), surface mount (SMT), straight pin, curved pin

Classified by shape

Single-layer type, double-layer stack type, through-wall type.

2.Notes on selection of strip connectors

The non-contact parts (pins, transition areas) are tin-plated, and the contact parts are gold-plated.

Selection of gold plating thickness for contacts: 0.25um plating thickness is preferred for common applications, 0.76um is preferred for more frequent mating applications.

A 2.54mm pitch is recommended, and a 2.00mm pitch is required when space is critical.

It is recommended that the working current of each pair of pinholes does not exceed 3A.

Pay attention to the insertion depth of the hole seat when selecting the model to ensure a reliable fit (more than two-thirds of the depth of the plastic body).

According to the product structure height requirements, choose the corresponding height of the needle seat, hole seat. When the distance between the boards is less than 11mm, ordinary pins and sockets are used. Stacked pin holders above 11mm are used with ordinary hole seats (the maximum board spacing can reach 34mm).

Recommended surface mount form for pitches below 2.00mm.

The needle hub is preferably 40 needles.

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BRIEF INTRODUCTION OF FLAT CABLE CONNECTOR

It is suitable for connecting straight and bent horn sockets, simple horn sockets and flat crimp sockets with flat cables. The connection is mainly realized by three parts, namely the pin seat, the crimping connector and the cable.

The main needle pitches are 2.54 mm, 2.00 mm, 1.27 mm; double-row form. The projection on the plug and the positioning groove on the needle seat have the function of preventing mis-insertion.

1. Cable selection

The cross-sectional size, toughness and flexibility of the cable should provide sufficient safe current load capacity and strength. Generally, it is not appropriate to use too thin wires.

2. Selection principle

The horn-type flat cable connector has horns, which takes up a lot of space, and the current usage level is generally less than 2A. When selecting, full consideration should be given to the structural requirements.

Simple horns are easy to loose due to the lack of buckle connection, and take up less space, but are not recommended for applications in vibrating environments.

It is recommended to choose a needle seat and plug with anti-insertion device.

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DIFFERENCES BETWEEN CONNECTOR AND TERMINAL

First, conceptual difference between connector and terminal

1. Connector. It is a component often contacted by electronic engineering technicians. Generally refers to electrical connectors. That is, a device that connects two active devices and transmits current or signals.

Sunkye Connector also refers to a positioning connector for connecting electronic circuits, which is composed of two parts, namely the plug-in and the connector, which can be completely separated in general. The difference between a switch and a connector is that the change of the contact state of the contact pair achieves the conversion purpose of the connected circuit, and the essential difference is that the connector has only two states: insertion and removal. The switch can realize the conversion of the circuit on the body, but the connector cannot achieve the conversion on the body, and there is a fixed correspondence relationship between the contact pairs of the connector.

2. Terminal. It is an accessory product used to achieve electrical connection, which is industrially divided into the category of connectors. The terminal is used to facilitate the connection of the wires. It is actually a piece of metal sheet enclosed in an insulating plastic. There are holes at both ends to insert the wires. Terminals can be divided into WUK terminals, European terminal series, plug-in terminals, and so on.

Second, the difference between the scopes of the connector and the terminal

1. “Connector” is the first category, and the terminal is just one of the “connector” category. A connector is a wire-to-wire connection; a connector is a wire-to-board and box connection. It is often classified into one category in practical applications.

2. The terminal is part of the connector. Connector is a general term. In fact, the connectors we commonly see usually include housing and terminal. The housing is mostly plastic, which plays a protective role, and the terminal is a metal, which plays a conductive role.

3. Connectors and terminals in the electrical and electrical fields:

A connector is commonly understood as a kind of thing that can be quickly connected with a single plug or twist without using tools.

Terminal, in plain understanding, is the kind of thing that requires tools, such as screwdrivers and cold press pliers, to connect two things together, and is generally used for power input and output.

Third, the difference between the practical applications of the connector and the terminal

Connectors are a subdivided field of electronic components, mainly used for the connection between circuits. In industrial production, line connections can be said to be ubiquitous, so the range of use of connectors is of course very wide and is used in various industries.

Connectors are divided into many categories, such as rectangular connectors,circular connectors,stepped connectors, and so on. The terminal is a type of connector, which generally belongs to rectangular connectors. The use range of terminal strips is also relatively single. It is generally used in the field of electronics and electronics, and is used for internal and external wiring of PCB circuit boards, printed boards and power distribution cabinets.

The range of use of terminal is increasing, and the types are increasing. At present, in addition to PCB board terminals, the most widely used are hardware terminals, nut terminals, spring terminals, etc. In the power industry, there are special terminal strips, terminal boxes with various terminals, such as single-layer terminal, double-layer terminal, current terminal, voltage terminal, common terminal, breakable terminal, etc.

In general, “connectors” and “terminals” are different application expressions that belong to the same concept, and are named according to different actual applications.

FOUR TYPES OF INDUSTRIAL ELECTRICAL CONNECTORS

The Sunkye connection forms of industrial electrical connectors can be roughly divided into four types, and more types are currently used. Here are four of them:

Threaded connection
Some types of connections are commonly used for contacts with larger dimensions and electrical connectors that operate in high vibration environments. This type of connection can be equipped with a fuse to prevent loosening after the connection is completed. The connection is reliable, but the connection is slow.

Bayonet connection
This is a reliable and fast form of connection and disconnection. Most electrical connectors in the form of a card 121 connection have a visual display of proper connection and locking, and can be seen through a small hole on the side of the electrical connector’s connection nut.

In-line connector
This is a versatile form of connection. When the plug and socket of the electrical connector are connected and disconnected, the moving direction is usually a reciprocating linear motion, without twisting and rotating, and only requires a small working space to complete the loading and unloading. Common plug-in connections come in spherical or pin configurations. Because there is no mechanical labor-saving mechanism in the connection form, once it is inserted incorrectly, the mechanical resistance increases significantly and can be found in time.

Electrical connector cabinet connection
This is an electrical connector used on some devices and requires a blind connection near the frame. It can make electrical equipment lighter, smaller, easier to maintain and more reliable.

This type of connection prevents the operator from feeling the connection. It is necessary to design an accurate positioning device to avoid forcibly connecting the wrongly inserted electrical connectors together, so that the wrong insertion cannot be performed. Cabinet-type electrical connectors are usually designed with floating or resilient contacts to ensure proper connection.

THE CONNECTOR INDUSTRY IS BOOMING

Sunkye Connector: A bridge for transmitting signals between systems and modules.

1. Connector is the key component of electrical connection or signal transmission

Connectors are essential components for electrical connection or signal transmission between system or complete circuit units. A connector is a functional element that connects, disconnects, or converts a circuit or optical channel by means of electrical or optical signals and mechanical forces. It is used as an electrical or optical signal connection between devices, components, equipment, and systems. , Transmit signals or electromagnetic energy, and keep the system from changing without signal distortion and energy loss.

Optoelectronic connectors are used wherever optical signal connections are required. As one of the basic components necessary for the electrical connection of circuit systems, they have been widely used in aviation, aerospace, military equipment, communications, computers, automobiles, industry, and household appliances. , Has now become one of the pillar industries of electronic information basic products.

2. New trends in connector development: high frequency and high speed, wireless transmission, miniaturization, and intelligence

The large-scale use of high-performance connectors is the development trend of the future manufacturing industry. As a bridge for communication within the circuit system, the connector has the characteristics of easy maintenance and easy upgrade, meanwhile, it can simplify the assembly process of electronic products, improve the flexibility of design and production, thereby increasing the degree of automation of the entire system and reducing costs. Therefore, the performance of the connector will affect the operating efficiency and reliability of the entire system. In the future, the diversity, performance and quality of connector products will become important factors in the entire manufacturing upgrade and development process.

Speedy connector are in great demand in more emerging areas. With the rapid development of 5G, Internet of Things, AI, and intelligent driving, the market has put forward new requirements for connector technology.

In communication equipment, connectors carry the task of data connection between terminals. The development of 5G will promote the growth of demand for wireless connectors. In automotive applications, with the continuous advancement of automotive intelligence, in addition to the original engine management system and other devices that require connector data connections, more advanced vehicle entertainment systems, intelligent driving systems, and other connectors have increasingly demanded connectors. Industrially, connectors require stronger reliability and performance. With the construction of the Industrial Internet, more reliable connectors are needed between industrial equipment and networks.

SUNKYE MEDICAL CONNECTOR SOLUTIONS: FUNCTIONALITY OF MEDICAL DEVICES & INTERCONNECT WITH LIFE AND HEALTHCARE

Healthcare issues coming more highlight with the outbreak of COVID-19 in 2020. We have to ask a rational question worldwide. What’s the healthcare qualified standard? What’s the purpose of healthcare in medical equipment? To save more lives in the hospital or keep the running of the hospital?

Our medical-grade connectors are designed to support non-invasive devices and disposable components. Our dependable solutions are highly customizable for specific applications and are lightweight, high density, shielded, EMI & RFI resistant, and RF compatible in addition to being resistant to shock and vibration. Sunkye offers cable (including active optical and fiber optics), flexible circuit and printed circuit board assemblies (PCBA), and can fabricate complete chassis / box builds, power supplies and wiring harnesses.

Our fully custom medical connectors and cable assembly solutions are ideal for demanding medical and dental environments. When it comes to patient care, device functionality can be a matter of life and death. Sunkye Medical Connectors help you deliver reliable, high-performance electronic devices that improve and save patients’ lives. With a comprehensive range of connectivity solutions – including miniature, pulse current, sterilizable, reusable, hybrid, disposable, and silicone-coated options –, your devices will meet even the strictest requirements, without compromising on design.

As your partner in connectivity, we’ll help you reduce risk, comply with international standards, and develop safe, sleek devices that improve patient lives and outcomes.

Functionality & Environments

SAFETY

Number coding, various locking systems, and easy-grip with the quality tactile feel

QUALITY

Sterilizable, chemical, and thermal resistance, right-angled and silicone over molds

PRECISION

Highly configurable and customizable, easy to handle, high-speed data transfer

Circle life

Up to 10,000 mating cycles

IP68 & IP69

EMI/RFI shielding

Medical Device Being Used In Clinical Lab

Performance index

Plug contact：rigid contact

No.of contact：12pins,16pins

Rated current ：2A

Insulation resistance ：≥5000 MΩ

Dielectric strength:500V

Contact resistance：≤10mΩ

Durability：50 Cycles

Working temperature ：-40℃～+85℃

Vibration：10 Hz～1500Hz，120 m/s 2

Mechanical Shock：980m/s2

Random vibration：Power spectral density 0.3 G2/Hz，Root-mean-square

Value of total acceleration：20.0

Connector Materials and Surface Treatment

Parts name	Materials	Surface Treatment
Pin	Copper alloy	Gold 2um
Housing	PPS	/

Environment Protect data (ROHS)

matter	Hg	Pb	Cr(VI)	PBB	PBDE	Cd
meet	or	exempt	meet	exempt	meet	meet

More information please check at https://www.sunkye.com/industry-solution/medical-and-healthcare/ and email at sales@sunkye.com.

Company Info:

Sunkye International Co., Ltd

Flat/RM, 1402B 14/F The Belgian Bank Building, Nos. 721-725 Nathan Road Mongkok HK.

Tel: +852-69486797

Fax: +852-31828508

Email: sales@sunkye.com

Website: http://www.sunkye.com

REMOVABLE CONNECTOR

Crimp removable assembly a family of male cable connectors that have three rows of contacts spaced at 0.075″. The removable connector comes with crimp removable wire termination. They are available in sizes ranging from 11 to 80 contacts. Support high sports performance high-temperature 280℃ connector, Anti-Water & Oil the advantage of heat exhaustion resistance improve the matching performance of the whole automatic. Sports High-Performance Automobile requiring for high-temperature heat exhaustion resistance & high-performance sporting.

Sunkye is a professional connector manufacturer, welcome to order!