Connector news: What boost automotive connector market demand?

Connector news: What boost automotive connector market demand?: With the development of automotive industry, connector market is growing very fast, too. Automotive connectors grow into the biggest cons...

Sealing Electrical Connectors with ceramic to metal seals

When engineers design a seal for feedthroughs and other electrical connectors electrical connectors, four general classes of material are evaluated. At the low end, a simple epoxy or glue may suffice. Alternatively, a mechanical seal with an elastomer o-ring can provide a somewhat more robust solution. For more demanding applications, glass seals connectors are effective in preventing leakage during severe changes in temperature, pressure and humidity.

The highest performance electrical seal systems employ ceramics for exceptional resistance to thermal and mechanical shock, as well as corrosion. However, the superior performance of ceramic versus glass comes at a cost. The ceramic material is typically more expensive than glass and ceramic-to-metal seals require more sophisticated engineering and more complex manufacturing processes.

Therefore, the Alberox Products business of Morgan Technical Ceramics (MTC), a world leader in the manufacture of ceramic-to-metal assemblies, recommends the use of ceramic seals in situations where glass seals fail to meet demanding performance requirements of an application. For example: high resistance to thermal and mechanical shock is necessary for many aerospace applications; exceptional corrosion resistance and biocompatibility is required by medical implant devices; and superior dielectric properties are critical to high voltage and high current laser applications.

Advantages of Ceramic
Ceramic-to-metal seals have a number of properties that allow for a more robust, durable hermetic seal and better electrical insulation than glass-to-metal seals. Alberox Products constructs seals primarily with 95% alumina (AL-500®), 97.6% alumina (AL-300®), and 99.5% alumina (AL-995®), as well as 100% pure sapphire and ruby. The polycrystalline alumina materials, such as AL-995, are favored in applications requiring a good heat sink. Sapphire and ruby are single-crystal formulations used for some medical implants and other high-purity applicati.

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How to solve and prevent connector EMI problems

EMI problem will influence connector performance, especially for special applications, military connector, aerospace connector, oil & gas application connectors, etc.http://www.sunkye.com

When meeting the EMI problems, below are some methods to solve it.

1.       Put the electro conductive plastics around the connector, as it is soft, this can solve the problem between connector outer shell and gasket.

2.       Engineers shall mount the connector according to connector outer shell tolerance.

3.       Achieve impedance bond between connector and outer shell, ensure connection performance.

4.       Force-cooled design is needed, also shall confirm the sealed function between connector insulator and outer shell. Keep gasket clean.

For I/O common-mode noise, some basic method can solve or reduce it.

1.       Set decoupling capacitor near load point

2.       Pulse current loop size shall be minimized.

3.       High power component shall be kept away from I/O port

4.       Ensure signal integrity

5.       Partial filtering

Miniature connector created to allow for more connections

A push-pull connector is designed to offer the smallest circular housing with the highest performance signal and power currently on market in this combination.

The MiniMax from Connectors manufacturer, Alpharetta, GA, provides a 20 signal (0.5A) and four power (5A) connector with 24 mixed contacts in a circular connector housing profile of less than 7mm, or the size of a push pin. Tested to withstand harsh environments, extreme temperatures, and 1,000 hours of salt water spray, the connector also boasts a durability of more than 500 mating cycles.

It is available in either push-pull, breakaway, or screw lock latching systems. The unbreakable keying system withstands over 4 Nm of torque and the over-molded assemblies are designed to withstand 100lb of pull or
breakaway force.

Created to allow for more connections in a smaller space, the connector is designed so that the power and signal don’t interfere with one another. The manufacturer seeks to offer a balance of performance and cost-effectiveness with the product, which because of its 24-contact configuration enables product designers to use fewer connectors. Because fewer cables are needed, the entire device can become more cost-effective and efficient to manufacture, as well as reliable during use. Suitable applications include portable equipment and communications and medical devices.

Connector raw material LCP feature and application

LCP is the most popular material for connector manufacturing, no matter military connector, aerospace connector, industrial connector, or automotive connector, medical connector.

Feature

a.       Self-reinforcement performance, fiber structure is extremely regular

b.       Excellent thermostability, heat resistance and chemical resistance

c.       Good weather resistance, radiation resistance and flame retardant

d.       Good insulation property

e.       High corrosion resistance

Application

a.       Electronics and electric device

b.       PCB board, satellite component, engine parts, automotive components, medical device, etc.

c.       Combined with filler or alloy materials

Six Basic Connector Test Procedures

1.       Physical test

Size, material, high temperature resistance, SMT test, constant temperature and humidity, thermal shock and wire

2.       Chemical test

Finishing, dipping tin, salt-spray

3.       Electric performance test

Connection point, dielectric strength, contact resistance, insulation resistance

4.       Mechanical test

Torque force, insertion and extraction force, swing, evenness, abrupt pull test, retention

5.       RoHS

RoHS-XRF test

6.       High frequency NA/TDR

Impedance, voltage standing wave ratio, return loss, insert loss, capacity.

Above tests is only for industrial electronic connectors; for military or aerospace connectors, some will be plated with nickel or cadmium just as D38999 connectors to apply into harsh environment.

What boost automotive connector market demand?

With the development of automotive industry, connector market is growing very fast, too. Automotive connectors grow into the biggest consumer market, as connector is the key component for electric connection, especially for automotive electronic or communication systems.

The requirement of power connector also increased for the application in automotive audio system and GPS system. Airbags has become standard design for cars; there is also an increase flexible PCB connector demand, which can also promote the green lifestyle, as flexible PCB connector can save the cable amount.

Many connector distributors have found the trend of automotive connector development and make some adjustment in market promotion. Many connector manufacturers provide many benefits to support distributors, AMP, Molex, ITT, Sunkye, etc.

More connector information， please visit website:http://www.sunkye.com