There are many types of rf connectors with different shapes and different installation methods. It is difficult for ordinary people to remember all the types and their corresponding shapes and installation methods.  The following figure shows the name, shape and installation of most RF connectors intuitively. Remember to collect it! ROHO  has strong R&D, design, testing and machining production capabilities, and can provide effective interconnection solutions. ROHO produces as many as 10,000+ interconnection products, including: RF connectors, adapters, high-speed cable assemblies, coaxial cables, rf anntenas, rf attenuators, rf Terminators  and power dividers, custom wiring harnesses, etc. ROHO products are widely used in telecom, rail transit, test and measurement, medical, national defense and military industries. If necessary, please contact us and we will get back to you as soon as possible.

    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 rf 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, cruise ship, aviation, industrial equipment, cable, sprinklers etc. They all use the waterproof cable 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 connectors are the mating elements which lines connected with appropriate ,Electronica mechanical components that enable the circuit to be turned on and off. They are called as plug-ins, plugs and sockets,With the difference among object, frequency, power, application environment. There are different types of connectors.for example,In aviation, There are aviation plug, aviation socket and so on, In life, waterproof connectors and cable connectors are used, In society, Connectors are widely used in military systems such as aviation, spaceflight and national defense.     The first，the choice of connector series is based on the application environment of the required product.     1. wireless base station.     2. Transmission equipment, switching equipment.     3. Backplane, set-top box, network card.     The choice of connector series is based on product performance and mechanical requirements. Such as impedance matching, VSWR, maximum frequency, Transmission power matching etc, A typical application environment can lead you to connect the parts of the product catalog.     1. wireless base station     Wireless base stations need to emit high power radio frequency signals, high-speed digital signals, and similar signals. Input/output port of equipment housing generally use N type and 7/16 type connectors. embedded rf modules require a blind matching series. Like BMA series, DIN series import module and panel connector, input/output modules use MCX, Surface mount series, panel and cable connector, Finally, The semi – rigid cable assembly and soft cable assembly are used to complete the signal connection of all parts of the equipment.     2.Transmission equipment and exchange equipment     In today’s large capacity transmission equipment market,Voice transmission, data transmission, image transmission,It includes connectors, cable assemblies, various consumables, from local end to user, from basic equipment to set-top boxes, From 50Ω to 75Ω, All use small rf coaxial connectors, Like BNC, TNC connectors series, to subminiature MCX. SMA. SMB. SMC and the miniaturized versions of them SSMA, SSMB, SSMC, The mini like MMCX, It provides extremely high installation density, In the standard interface among DIN IEC, High-speed signal transmission requires high – performance GHz band BNC connectors.      3. Backplane, network card and set-top box     The market of coaxial connector has developed rapidly in recent years, BNC connectors account for a large number of applications in coaxial exit ethernet that provide high-speed access. BNC series connectors are widely used in the lower layer of communication link,BNC series has been widely used because of its unique lock mode of bayonet and its feature of convenient plug.     The connectors are the mating elements which lines connected with appr...

    The waterproof connector is the same as the cable connector in the electrical industry, So what’s the difference between the waterproof connector and cable connectors?the waterproof connectors can not only be waterproof and also conductive, They can be used in water environment, Like the LED light,lighthouse in the rain, the ship and yacht in the river,the industrial equipment need to be sprayed,the fire fighting truck in emergency etc, They all need waterproof connectors, This is the most important difference between waterproof connectors and cable connectors, Also the unique characters of waterproof connectors.     With the development of the market, Now, The work environment, device,equipment, with water is more and more popular, and more people choose waterproof connectors, The waterproof coaxial connector has excellent sealing performance,Safe and reliable quality waterproof connector have great demand in the market, So the quality standard is higher, The waterproof and dustproof class of waterproof connector products reaches IP68 standard, In other words, Put the connectors into the 10 meters deep water,let them work 12 hours, When the shell dip to 15 degrees, The liquid poured into the connectors have no influence,Put them into the the 100 deep water, breaking test for 12 hours, The liquid pour into the shell make no influence, still remain good performance, Only up to this requirement, They can be called qualified waterproof connectors.

    Waterproof connector is excellent products which is widely known. They are used in many areas.So what is the performance of them to support their market? they are mechanical property,electrical performance and environmental performance,which help them to keep the advantage of the market and made them stand out form the similar products.       First. The heat resistance.Today,The waterproof connector have good adaptability in both high temperature and low temperature.The highest temperature can up to 200℃（except few high temperature special waterproof connectors ）The lowest temperature can be as low as -65℃. As is known to all. Because of the resistance,The equipment will produce many heat under the working condition of the electricity. cause the equipment heat up then. So the temperature we usually mentioned is consisted of environment temperature and contact temperature.We’ll show the highest temperature limits of the waterproof connector under the rated operational current.     Secondly. The waterproof connector can effectively adapt to the environment of salt spray resistance. General structural metal ,Contact surface may have electrochemical corrosion. Though we can’t avoid the working environment with salty and moisturity.We can improve the performance of the waterproof connectors to prevent the equipment are corroded.We test the performance of the connectors by smoke test .including we create Smoke atmosphere by use a certain concentration of NACl to compressed the air, General waterproof connectors can be up to 48 hours.     Thirdly. Vibration resistance and shock resistance are the vital parameter of the waterproof connectors.These two parameters are especially important in special environment.including aviation , spaceflight,railway,road transportation etc.These two parameters are the measuring ruler of the sturdiness and electric contact property. Usually in the impact experiment.The peak acceleration,time of duration and the time of impact pulsation waveform and electrical connectivity interruption.     Fourthly. The humidity of the environment. For waterproof RF connector to power supply. Somehow.The humidity may have impact of the waterproof connectors. But the ROHO waterproof connectors reduce this value to the least.General product are not influenced among the moderation 90%-95% .     Electrical Performance is the essential performance of waterproof connectors.In general. They include contact resistance,insulation resistance,dielectric strength etc.     The order of magnitudes of insulation resistance are hundreds of megohm to thousands of megohm.The contact resistance is from a few milliohms to tens of milliohms. The dielectric strength is the ability to withstand rated test voltage between the waterproof connector contacts or between the contact and the enclosure.which is generally can up to the standard value.     Lastly. Th...

    The development of high density micro connectors has attracted the attention of many countries in the world. The developed countries like United States and Japan strengthen the research and development of high-end micro products and infiltrate its production gradually into developing countries including China .     In the past few years. China’s society and economic information is developing rapidly. The demand for high-end electronic equipment is booming. RF Connector foreign-funded enterprises are increasing. In order to improve the ability of  competition, China’s connector industry should actively strengthen the development of high-end miniature connectors. For China’s miniature connectors just get start with poor technical foundation and shortage of funds. We believe that the following counter measures should be taken. Establish economies of scale and group     The development of modern high-density micro IPEX connectors will not work, If there is no certain scale economy. Therefore, the current industrial pattern of repetition, Dispersion and small production should be led to the joint and gradually realize joint investment, intensive management. In accordance with the requirements of the modern enterprise system to establish a large group of companies with world-class competition to compete with foreign great competitors group. Pay attention to the investment of technology and talents     We must base on the progress of technology and optimize technical structure, intensify technological upgrading, Strengthening the renewal of technological equipment, Introduce advanced technology of high density connector from abroad, At the same time. We need to strengthen the ability of digestion and absorption. enhance the ability of independent development, We should also pay attention to the cultivation and utilization of talents and fully mobilize the enthusiasm of scientific and technological personnel. Products must strive for the grade.     We need to improve product quality in an all aspects. Widely adopted international standards. Strive to develop high-tech and cutting-edge high-reliability products. Create, excellent, special products. Focus on high-tech key technologies such as SMT. The main direction of the production of high and mid-range micro connectors. drive the overall level of improvement. Identify key service areas     The development of micro-connectors must first meet the needs of the national economy, national key projects and military assembly. We should attache importance to investment equipment and a new generation of complete machine products. In particular, we must focus on promoting the national economy information service. Such as financial management computer networking, etc. In order to change the situation of mainly in consumer middle and low-end products and low localization rate of investment products. Our final purpose is gradually...

    The model of the universal frequency connector is composed of two parts: the main name code and the structural form code, separated by a dash "-" in the middle. Other situations that need to be explained can be stipulated in the detailed regulations, and separated by dashes and structural form codes.     The main designation code of the universal radio frequency connector adopts the main designation code commonly used at home and abroad. The main designation code of the special product shall be specified by the detailed specification.     (1) The code and description of the general title     N connector: A threaded radio frequency coaxial connector with an inner diameter of the outer conductor of 7mm (0.276 inches) and a characteristic impedance of 50Ω (75Ω). (IEC169-16)     Type BNC connector: Bayonet locking radio frequency coaxial connector with inner diameter of outer conductor of 6.5mm (0.256 inch) and characteristic impedance of 50Ω. (IEC169-8)     Type TNC connector: Threaded radio frequency coaxial connector with inner diameter of outer conductor of 6.5mm (0.256 inch) and characteristic impedance of 50Ω. (IEC169-17)     Type SMA connector: threaded radio frequency coaxial connector with inner diameter of outer conductor of 4.13mm (0.163 inch) and characteristic impedance of 50Ω. (IEC169-15)     Type SMB connector: Push-in locking radio frequency coaxial connector with an inner diameter of 3mm (0.12 inches) of outer conductor and a characteristic impedance of 50Ω. (IEC169-10)     Type SMC connector: threaded radio frequency coaxial connector with the inner diameter of the outer conductor of 3mm (0.12 inches) and the characteristic impedance of 50Ω. (IEC169-9)     Type SSMA connector: threaded radio frequency coaxial connector with inner diameter of outer conductor of 2.79mm (0.11 inch) and characteristic impedance of 50Ω. (IEC169-18)     Type SSMB connector: Push-in locking radio frequency coaxial connector with inner diameter of outer conductor of 2.08mm (0.082 inches) and characteristic impedance of 50Ω. (IEC169-19)     Type SSMC connector: threaded radio frequency coaxial connector with an inner diameter of the outer conductor of 2.08mm (0.082 inches) and a characteristic impedance of 50Ω. (IEC169-20)     Type SC connector (SC-A and SC-B type): The outer conductor inner diameter is 9.5mm (0.374 inches), the characteristic impedance is 50Ω threaded type (two types have different types of connecting threads) radio frequency coaxial connector. (IEC169-21)     APC7 type: precision medium-sized RF coaxial connector with inner diameter of outer conductor of 7mm (0.276 inches) and characteristic impedance of 50Ω. (IEC457-2)     APC3.5 type: threaded radio frequency coaxial connector with inner diameter of outer conductor ...

    Recently, Some users gradually choose SMB connectors because SMB series connectors can improve the consistency of the connector installation and their excellent performance, The SMB series can also be used in commercial and military.     In fact, The same application be selected through have many schemes, The user can choose the suitable connectors based on their demand.     Connection mechanism selection: Coupling mechanism make it possible to connect the two connector, It depends on the required mass and impedance characteristics of the two interfaces coupled together and the operation frequency. The connection mechanism has a great influence on the performance of the connector. Here are five common connection mechanisms.     Screwed Coupling Mechanism, This type of connect use a coupling nut to connect, It should be noted that the limitation of the maximum torque in case the nut slides, Connector with threaded connection mechanism have the series as below: SMC、SMA、N、7/16、SSMA、CC4、L9, TNC connector They mainly use in test equipment, military and telecommunication equipment.     Snap-on Coupling Mechanism: They are mainly used in connectors for small interfaces and their installation density is relatively high. Because this kind of connection mechanism is more convenient and easy to use, they’re usually used in the PCB panel.     The push-in connection has a locking reed: The advantages of them are the dialing is very quick and convenient, This type of bindiny mechanism is mainly used in miniature connector series, For example: SMB、SSMB、SMZ、MMCX、MCX connector.     Slide-on Coupling Mechanism usually used high density installation occasions: It’s very easy to plug and dial,This type of connector is mainly used in board – to – board coaxial connection systems. The connection mechanism is mainly used in small DIN multi-end connectors, For example: BMA、C4、C5、C6、ERI, They are usually modular installations.     Bayonet Coupling Mechanism, There are a pair of lock slots, this kind of locking mechanism is the unique feature for BNC connectors; Bayonet connection mechanism is usually used in applications where reliable connections are required and can be inserted quickly, For example: testing and measuring equipment and military equipment.     Push-Pull Self-Latching, This connection mechanism has a unique way of self-locking: It is as quick and convenient as a slip-in connection when plugged, but it is very reliable. When it locks itself, even a pull cable will not unlock.Push-in self-locks are typically used on small connectors in high-density installations such as: 1.0/2. 3,1.6/5.6 series. It is fast and reliable.