Waterproof connectors are the electron components which work under the water and resist water.Power cords, network cables can be put in their internal. they can provide normal and reliable power supply and the signal transmission.The most important and characteristic role is that they are waterproof and dust proof.

At the moment, the IP waterproofing standard is the main standard of waterproof connector for waterproof performance.We know the waterproof performance by the IPXX, The two number XX behind the IP.first X is from 0 to 6,The supreme grade is 6.The second number is from 0 to 8. The supreme grade is 8.So the highest waterproofing level of waterproof connectors are IP68.

With the development of technologies.Many stuffs in our life use electricity . But the things with electricity have influence in our safety somehow.So waterproof is important,waterproof connectors can be used into environment with water,have excellent sealing performance and reliable waterproof performance.For example,If some equipment need to be in the water or be fixed in the water.the waterproof connectors have no need to worry about the water especially the water contains many chemical substances come into the connectors which will damage the connectors.

Waterproof connectors are the good news for us.They have many applications.Many area need to use the waterproof connectors,Like the industrial environment, lighting decoration controlled,Urban outdoor lighting project,Lighthouse, cruise ship, aviation, industrial equipment, cable, sprinklers etc.They all use the waterproof connectors.Because the military fields have the strict requires.They use many waterproof connectors,Like submarines and submarine-launched missiles connectors and so on.

The connector is a device that connects two active components and is used to transmit current or signals. Connectors’ is widely used and take important role in it’s application.

Connector category

There are only two basic ways to classify connector products according to their appearance, structure and working frequency. They are divided into Circle and rectangle by the outline structure. The operating frequency can be divided into low frequency and high frequency, and the frequency is bounded by 3MHZ.The rectangle connectors is the majority used in the market.Its cross-section is a trapezoid, which is approximately a rectangle.In addition, it can be divided into many different types according to some other purposes, installation methods, special structures, special performance, etc. At the same time, according to the relevant technical standards of connectors can be divided into low-frequency circular connector, rectangular connector, printed circuit connector, radio frequency coaxial connector, fiber connector and so on.

Use advantages

1、The connectors improve the production process, not only simplifies the assembly process of electronic products, but also simplifies the mass production process.

2、The connectors are very easy to maintain.When some components don’t work, Itis convenient to change the lose efficacy and restore normal operation of the component.

3、They are convenient to upgrade.With the development of technology, the components can be updated when the connectors are installed, and can be replaced with new ones.

4、They are flexible for design.When people use the connectors for the assemble system, they will find it is more flexible.

Dosin hardware electronics, as a professional connector manufacturer, which is focused on rf connector production research and development and sales for thirteen years, precipitated the rich technical experience, strength. Now have gained a good reputation in the national connector market, and the products have been exported to more than 40 countries and regions at home and abroad through the cooperation with the foreign trade team of Renhotec.

Many practitioners may don’t have a good knowledge about the differences about 3.5mm/2.92mm/2.4mm/SMA,As a menber of Dosin Hardware Electronics Co., Ltd.I’m really happy to share the knowledge of these four connectors with you and hope this knowledges will help you. Many users may meet this problem. 3.5mm/2.92mm/2.4mm,  connectors,which one can seamless connect with SMA.First we should learn to tell these connectors apart before answering the question.

At the baginnig.SMA is designed for 0.141semi-rigid coaxial cable.and usually filled with ptfe medium.In the army industries ,they are used as precision connectors for microwave applications.At that condition.since SMA is small in small size and can work in high frequency. (Frequency range of semi-hard cable is DC~18GHz,and the soft cable is DC~12.4GHz)They are popular quickly.Even the Millimeter wave connectors developed later (for example:3.5mm、2.92mm) also take the mechanical compatibility into consideration.

What is 3.5mm connectors? The outer diameter is 3.5mm.The impedance is 50Ω.The bindiny mechanism is 1/4-36UNS-2 English thread Connector.The biggest difference betweem SMA is 3.5mm is use air dielectric.The outer conductor of 3.5mm connectors is thicker than SMA connector.The mechanical strength of 3.5mm connectors is better than SMA connectors.Not only the behaviour of electricity of 3.5mm connectors is better than SMA connectors’ .but also mechanical endurance and repeatability of performance are higher than SMA connectors.So they are suitble for used in testing industries.

The Outer diameter of the 2.92 connectors is 2.92mm.The impedance is 50Ω.The bindiny mechanism is 1/4-36UNS-2 English thread coaxial Connector.the structure of 2.92 connectors are similar with 3.5 connectors.but smaller than 3.5 connectors. 2.92 connectors’ frequency is DC~46GHz.they have good electrical property and can be compatied with SMA connectors and 3.5mm connectors.So 2.92 connectors are soon accepted by manufacturers. And became one of the most widely used millimeter wave connectors in the globle world.

The outer diameter of the 2.4mm connectors is 2.4mm.The impedance is 50Ω.The outer diameter of the 1.85mm connectors is 1.85mm.The impedance is 50Ω.They have smaller inside dimension.and higher working frequency.nominal can up to 50GHz 60GHz,

This two connectors are mechanical compatible and can connect with each other.But please note that they can’t be connected with 2.92mm,3.5mm and SMA connectors.If connect with 2.92mm,3.5mm and SMA connectors.They will be broken down.

After reading the above article.You may have a good idea about the difference among 3.5mm/2.92mm/2.4mm/SMA connectors.If you want to know more information about the connectors of  3.5mm/2.92mm/2.4mm/SMA connectors.Please log in https://www.dosinconn.com/our-products/rf-coaxial-connectors/sma-connector/.

If Purchase and customize SMA connectors.Please choose Dosin Hardware Electronics Co., Ltd.We have experience in manufacturing SMA connectors for 12 years.All our products are passed ISO certification. We are spoken highly by our peer.and our product sale to 40 countries in the world.and enjoy high recognition.You contact us by 0086 769 81153906.