Talking about FPC connectors

FPC connectors are characterized by high cable density, light weight and thinness, so they are called flexible circuit boards, flexible printed circuit boards or flexible circuit boards. Most FPC connectors are made of polyimide (PI) or polyethylene terephthalate (PET), which improves the reliability of FPC connectors.

FPC connectors will vary depending on how the raw materials and copper cladding are connected. Therefore, FPC can be divided into two main types: 3-layer FCCL and 2-layer FCCL.

The 2-layer FCCL has greater flexibility, and the raw material 2-layer FCCL is too expensive to use on the market. In contrast, the 3-layer FCCL is much cheaper and is usually used on the market. However, the flexibility and flatness parameters of the mat are not as good as the 2-layer FCCL, so there may be welding defects such as cracks, which manufacturers should try to avoid.

Since 3-layer FCCL is more prevalent in the market, more and more connector manufacturers adopt it and it is better developed. Different types of FCCL can be classified according to the number of layers of copper foil, including multi-layer boards, double-layer boards, single-layer boards and double-layer boards.

The single layer board has the simplest structure. Connector manufacturers typically use structures that include raw materials, clear plastics, and copper foil. Some FPC connector manufacturers use a layer of protective plastic and transparent plastic. This structure can greatly improve the mechanical strength of the 3-layer FCCL.

The two-layer structure is used for complex circuits that cannot be wired or shielded. The multi-layer board is different from the single-layer board in the VIA structure, and can effectively connect different layers of copper foil. Double-sided two-sided soldering, mainly used to connect other boards. In addition, the FPC connector can be applied to MP3 and MP4 players, digital cameras, mobile phones and mobile phone batteries, and the future development of FPC connectors is very good.

Yeahui is a connector supplier with 11 years of experience in developing high quality connectors and wiring harnesses. wo have many types of products, including obd connector, circular connector, agricultural connector and so on.We can meet the requirements of various customers. Feel free to learn more about connectors or buy our connectors,looking forward to your message.

Read more about the connectors(Automotive connector knowledge sharing).

Automotive connector knowledge sharing

Automotive connectors are widely used in various places and systems of automotive, as a function of connecting and disconnecting current. Since there are many types of automotive connectors, it is hard to remember, so it is very important to choose a suitable automotive connector. of.

The automotive connectors have different classification methods, and we can divide them into high frequency connectors and low frequency connectors if we divide them according to the frequency they send.

When we buy an automotive connector, the electrical parameters of the automotive connector are the first to look at, and the most important one is the rated voltage of the automotive connector. The rated voltage is also called the operating voltage. It depends mainly on the connector. The amount of insulation used between the insulating material and the contact pair. Some components or devices may not perform their intended function below their rated voltage, so for the normal use of the automotive connector, regular maintenance and care must be performed.

The automotive connector is used in many electronic engineering applications. With the increasing use of automotive, there is a growing demand for some automotive devices. The most important component of an automotive connector is its contact, which is a core component of the connection system.

Yeahui is a connector supplier with 11 years of experience in developing high quality connectors and wiring harnesses. wo have many types of products, including obd connector, circular connector, agricultural connector and so on.We can meet the requirements of various customers. Feel free to learn more about connectors or buy our connectors,looking forward to your message.

Read more about the connectors(How to improve the reliability of the connector).

How to improve the reliability of the connector

Electronic connectors are widely used in power system equipment, and are on the rise with the increasing popularity of electronic technology.

Electronic connector division can be divided into aviation, automobile, military, household appliances, etc. according to common fields. For example, according to the external structure, it can be divided into pin header, circle, rectangle and so on. But from a technical point of view, to make the application of technology more effective and in-depth.

The reliability of automotive connectors is unquestionable. The ambient temperature is greater than conventional, corrosive, vibration and frictional wear, so the reliability of the factors is worse than the conventional environment.

For contact force design of electronic connectors, there are two common guidelines for smaller force design guidelines (for small currents) and larger contact resistance design guidelines (for larger currents.)

For corrosion factors and reliability factors, connector manufacturers will rigorously test new products before they can be mass-produced and marketed in their application fields.

Yeahui is a connector supplier with 11 years of experience in developing high quality connectors and wiring harnesses. wo have many types of products, including obd connector, circular connector, agricultural connector and so on.We can meet the requirements of various customers. Feel free to learn more about connectors or buy our connectors,looking forward to your message.

Read more about the connectors(Basic performance of the connector).

Basic performance of the connector

The basic performance of connectors can be divided into three categories: mechanical, electrical, and environmental.

Mechanical behavior

Mechanical properties In terms of the connection function, the insertion force is an important mechanical property. The insertion force is divided into the insertion force and the extraction force (the extraction force is also called the separation force), and the requirements of the two are different. There are maximum insertion force and minimum separation force regulations in the relevant standards, which indicates that the insertion force is small from the point of view of use (thereby having a low insertion force LIF and a structure without ZIF insertion), and if the separation force is too small, It will affect the reliability of the contact.

Another important mechanical property is the mechanical life of the connector. Mechanical life is actually an indicator of durability, which is called mechanical operation in GB5095. It takes one insertion and one extraction as one cycle to judge whether the connector can complete its connection function (such as contact resistance value) after the specified insertion and removal cycle. The insertion force and mechanical life of the connector are related to the plating quality (sliding friction coefficient) of the contact structure (positive pressure) contact portion and the dimensional accuracy (alignment) of the contact arrangement.

Electrical performance

The main electrical properties of electrical performance connectors include contact resistance, insulation resistance and electrical strength.

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

2 Insulation resistance is an indicator of the insulation performance between electrical connector contacts and between the contacts and the casing, in the order of hundreds of megaohms to several gigaohms.

3 Resistance to electric strength, or withstand voltage, dielectric withstand voltage, is the ability to characterize the rated test voltage between connector contacts or between contacts and housing.

Environmental performance

Environmental performance Common environmental properties include temperature resistance, moisture resistance, salt spray resistance, vibration and shock.

Yeahui is a connector supplier with 11 years of experience in developing high quality connectors and wiring harnesses. wo have many types of products, including obd connector, circular connector, agricultural connector and so on.We can meet the requirements of various customers. Feel free to learn more about connectors or buy our connectors,looking forward to your message.

Read more about the connectors(Overview of Military Standards for RF Cables and Connectors).

Overview of Military Standards for RF Cables and Connectors

Many coaxial cable and connector types are available in the RF and microwave industry designed for specific purposes and applications; compatibility with other RF microwave components is achieved with universally accepted cable and connector standards. The US Department of Defense (DOD) develops standards for materials, facilities, engineering, and testing practices in order to improve military operational readiness and reduce costs and production time. DOD standards have adopted non-government standards and practices that meet DoD performance requirements. This process is managed by the Defense Standardization Program who provides the standards and relevant specifications. RF cables and connectors used in military applications have demanding requirements for environmental specifications, such as temperature, shock, and vibration; these requirements are specified in detail the US Department of Defense military standards in MIL-DTL-17J for coaxial cables and MIL-PRF-39012 RF for coaxial connectors.

Department of Defense Standards (DoD)

The Acquisition Streamlining and Standardization Information System (ASSIST) database is a list of defense and federal standardization documents as well as adopted non-government standards (NGS), and Materiel International Standardization Agreements (ISAs).

MIL-DTL-17

Coaxial cables for military and aerospace applications must meet the standards and specifications in MIL-DTL-17 which details specifications for flexible and semi-rigid coaxial cables with solid and semisolid dielectric cores as well as single, dual, twin, and triaxial conductors intended for use in radio frequency applications.

MIL-PRF-39012

Coaxial connectors for military and aerospace applications must meet the standards and specifications in MIL-PRF-39012 which provides general requirements and test methods for RF connectors used with flexible and semirigid coaxial cables.

Yeahui is a connector supplier with 11 years of experience in developing high quality connectors and wiring harnesses. wo have many types of products, including obd connectors, circular connectors, agricultural connectors and so on.We can meet the requirements of various customers. Feel free to learn more about connectors or buy our connectors,looking forward to your message.

Read more about the connectors(What is the use of automotive connectors).

Common faults in automotive connectors

The automotive connector consists of contacts, housings, insulators, and other accessories that act as bridges in the car’s wiring to allow the vehicle’s internal circuitry to circulate. Once a problem occurs inside the connector, the overall line is not circulated. Therefore, the connector manufacturer recommends that corrections be made in time if problems are found.

Common automotive connector problems can be divided into the following points:

1. Problems with the connector material of the car connector. The raw materials of the automotive connector connector can affect the performance and other unstable performance. Therefore, if the automotive connector material purchased at the time of purchase is inferior, the connector is prone to problems when it is used.

2. The current and voltage of the automotive connector circuit are unstable. Current and voltage problems are external factors that can be stabilized by installing products such as voltage regulators.

3. The car connector is not used within the regulations. Automotive connector products have their own environment, such as the general heat resistance between 40 ~ 120 ° C, the insertion force is below 20.5 kg. Once the operating conditions are out of the rated range, it is easy to cause problems with the connector.

Yeahui is a connector supplier with 11 years of experience in developing high quality connectors and wiring harnesses. wo have many types of products, including obd connectors, circular connectors, agricultural connectors and so on.We can meet the requirements of various customers. Feel free to learn more about connectors or buy our connectors,looking forward to your message.

Read more about the connectors(Where'd OBD II come from).

Where'd OBD II come from

To combat its smog problem in the LA basin, the State of California started requiring emission control systems on 1966 model cars. The federal government extended these controls nationwide in 1968.

Congress passed the Clean Air Act in 1970 and established the Environmental Protection Agency (EPA). This started a series of graduated emission standards and requirements for maintenance of vehicles for extended periods of time. To meet these standards, manufacturers turned to electronically controlled fuel feed and ignition systems. Sensors measured engine performance and adjusted the systems to provide minimum pollution. These sensors were also accessed to provide early diagnostic assistance.

At first there were few standards and each manufacturer had their own systems and signals. In 1988, the Society of Automotive Engineers (SAE) set a standard connector plug and set of diagnostic test signals. The EPA adapted most of their standards from the SAE on-board diagnostic programs and recommendations. OBD-II is an expanded set of standards and practices developed by SAE and adopted by the EPA and CARB (California Air Resources Board) for implementation by January 1, 1996.

Yeahui is a connector supplier with 11 years of experience in developing high quality connectors and wiring harnesses. wo have many types of products, including obd connectors, circular connectors, agricultural connectors and so on.We can meet the requirements of various customers. Feel free to learn more about connectors or buy our connectors,looking forward to your message.

Read more about the connectors(What constitutes RF coaxial connector reliability).