Circular connectors-Agent sales of domestic and foreign brands of circular connectors

A circular connector is a type of connector whose basic structure is cylindrical and has a circular mating face. In the interconnection classification, it belongs to Category 5 and is used for interconnection between devices. Broadly speaking, it includes low-frequency circular connectors, RF coaxial connectors and audio connectors. The cylindrical structure of the circular connector has natural firmness and higher strength than any other shape. Our company sells many brands of circular connectors at home and abroad. According to the types of transmission signal/electrical requirements, the circular connectors sold by its agents are divided into: power circular connectors, signal circular connectors, high-frequency circular connectors, general circular connectors, high-power circular connectors, high-voltage circular connectors, pulse circular connectors, low-noise circular connectors, phase modulation circular connectors, Precision coaxial circular connector, military circular connector, aviation circular connector, medical circular connector, etc.

1、 What is a circular connector? Circular connector: Circular connector is a kind of connector with cylindrical basic structure and circular mating surface. In the interconnection classification, it belongs to Category 5 and is used for interconnection between devices. Broadly speaking, it includes low-frequency circular connectors, RF coaxial connectors and audio connectors. The cylindrical structure of the circular connector has natural firmness and higher strength than any other shape. The circular connector has the following characteristics: 1. The circular electrical connector has advanced structure, convenient use and high reliability, and conforms to the standard GJB2889; 2. It adopts bayonet connection, and the pin and Jack can be assembled and disassembled separately; 3. The Jack adopts the wire spring structure, and the contact pin and Jack lead adopt the crimping and welding form; 4. Each type has nine models, and there are 32 hole positions arranged from 1 to 62 cores. Including XC-basic type (crimping), XCH-socket welding type, XCB-socket is printed board welding type, sealed, double-head sealed shielding, non-shielding, etc.; 5. In order to ensure the matching with various specifications of cables, FJA, FJC, FJD and other cable accessories can be selected; 6. It is widely used in aviation, aerospace, post and telecommunications, computers, navigation and various instruments and meters. 7. use environmental conditions: (1) relative humidity: 40 ℃, Up to 95 [ [%]] (2) Working height: 30000 m (3) Vibration: frequency 10 ~ 2000HZ Acceleration 196 m/S2 (20g) (4) Shock: peak acceleration 980 m/S2 (100g) (5) Constant acceleration: 980 M/S2 (100g) (6) Air tightness: through-wall sealing socket 50.7 KPa; square disk sealing socket 152KPa (7) Mechanical life: ≥ 1000 times Q-series round electrical connectors are manufactured according to the standard SJ1744-81 of the Ministry of Electronic Industry, with reliable product structure and convenient operation. The pin and Jack leads are welded. According to the user's needs, the plug and socket can be equipped with both pins and holes. The product has the characteristics of small volume, light weight, quick connection, quick separation and the like, Widely used in instrumentation, Electrical connection between electronic equipment. Mechanical properties of circular connector: 1. Shell: aluminum alloy 2. Surface treatment: army green cadmium (B) electroless nickel plating (F) 3. Insulating mounting plate: thermoplastic material 4. Seal ring: silicone rubber elastomer 5. Contact: copper alloy 6. Surface treatment: gold plating on nickel 7. Service life: 500 times of insertion and extraction cycles-impact: 2940m/S2 3ms8. Vibration: sine 294 m/S2 10 ~ 2000Hz random 96 (m/S2) 2/Hz 408 m/S2, 100 ~ 1000Hz random 480 (m/S2) 2/Hz, 100 ~ 300 Hz9. Contact retention (minimum) # 22D: 44 N # 16: 111N # 8 Coaxial: 111N # 20:67 N # 12: 111N # 8 Triaxial: 111N10. Electrical performance Withstand voltage (Vrms) Rated conditions: sea level 21000m. Composition of the round connector: the shell assembly of the straight plug-pull steel ball quick-lock round electric connector consists of a plug and a socket, the shell assembly of the plug consists of a shell, a lock sleeve, a reed, a pin, a steel ball, an elastic sheet and a gasket, after the lock sleeve and the shell are assembled, the pin is arranged in the shell and riveted on the lock sleeve, and the space between the lock sleeve and the shell can rotate by 20 degrees. The plug shell is internally provided with 3-4 steel balls which have the function of butt joint and locking, the lock sleeve is internally provided with a straight groove, and when the steel balls are not supported, the steel balls are fully retracted into the shell wall; and after the plug is inserted, the lock sleeve is rotated to support the steel balls so that the steel balls protrude out of the inner wall of the shell and extend into the annular groove on the socket shell to realize the locking of the plug and the socket. It also has the advantages of anti-oblique insertion, anti-misinsertion, excellent electrical performance and shielding performance, vibration resistance, impact resistance, environmental resistance and the like, is convenient and quick to lock and unlock, and is small and convenient to use.

---------------------------------------------------------------------------------------------------

Introduction to the characteristics and application of 2、 circular connectors: Circular connectors are also called industrial connectors, which are cylindrical in basic structure and have approximately circular mating surfaces. Features of circular connectors The plugs and sockets of circular connectors are mostly connected by threads, and the number of terminals can range from two to hundreds. They have the characteristics of small size and high reliability, and can meet the needs of cable connection between electronic devices. Application of circular connector that cylindrical structure of a circular connector is naturally robust and has a higher strength-to-weight ratio than any other shape. It is easy to machine with standard machine tools. It is easy to seal, easy to insert and disassemble. It has a simple and firm locking mechanism. After ten years of technical development, it has a complete and reasonable process and high reliability. Therefore, where multi-contact connectors are required to achieve interconnections between components and cables, and cables and cables, circular connectors are the choice.

---------------------------------------------------------------------------------------------------

What are the functions of 3、 round power connectors?: In the field of electronics, round power connectors are used to transmit power and signals, and to transmit network and data signals throughout the device. These multi-pin contact designs are easy to install and remove, and round power connectors have evolved over the years to become some of the most common because they are more compact and can provide a small envelope compared to rectangular power connectors. Different applications require different designs, and the circular power connector effectively disconnects and reconnects the power cord to the device. They were developed to replace the hardwiring of power cables, which are often damaged or require extensive repair when power supplies are replaced. While the introduction of a circular power connector provides a fast and compact solution to this problem. It is also used in a wide range of applications, from medical equipment to street and vehicle lighting, as well as industrial machinery to consumer electronics. Their rounded shape is ideal for a variety of locking methods, such as threaded push-pull and bayonet locking designs, and they are usually made of two materials, metal and plastic. Its rubber can also be used for waterproof or dustproof connectors. These locking methods are easy to operate. Circular connectors can also pack a large number of contacts into relatively compact sizes. It is rated from 200 to 600 AC/DC, from 1 to 2 A to several hundred amps, and is available in a variety of pin counts and configurations. International power standards such as IP (International Protection Mark Standard Rating) and Mil-spec must be considered when selecting the specified round power connector. The IP standard helps determine whether the connector is dustproof, waterproof, etc. In fact, understanding a large amount of data is essential to safely specify a round power connector. You must first know the voltage and current of each contact to ensure that the connector has the proper number of contacts to meet the power needs of your device. Second, understand all the things that the connector needs to do, for example, if you need a compact design that can carry both power and coaxial signals, a hybrid design may be a better choice.

---------------------------------------------------------------------------------------------------

4、 the advantages and disadvantages of circular connectors, how to choose circular connectors and precautions for use: 4.1. Advantages and disadvantages of circular connectors: [Advantages] Circular connectors are very suitable for applications requiring stronger terminals. Their cylindrical shape makes them particularly resistant to mechanical engineering turbulence and impact as well as damage. The contact resistance of the circular connector shall be low and stable. The contact resistance varies from a few milliohms to several tens. The insulation resistance measures the technical performance of the insulation between the circular electrical connector contacts and between the contacts and the housing structure, and ranges in size from hundreds of megohms to several gigaohms. Dielectric strength or withstand voltage, i.e., dielectric withstand voltage, refers to the circular electrical connector characteristic of the resistance between the contacts or between the contacts and the housing with respect to the rated test voltage. Electromagnetic interference leakage attenuation is used to evaluate the shielding effectiveness of circular electrical connectors. Generally, the measured frequency range is 100MHz ~ 10ghz. [Disadvantages] The circular surface area limits the arrangement of pins and sockets on the surface of a circular connector; a connector with a rectangular face can mount more contacts on a smaller surface area with a larger and uniform spacing. 4.2. If a circular connector is selected? Type of circular connector bayonet: When selecting circular connectors, it is necessary to select the appropriate and matching bayonet type, mainly including 1/4 quick bayonet connection, plug-in connection, latch connection, quick plug-in connection, threaded connection, zipper connection, etc.; wiring mode of circular connectors: crimping wiring, welding wiring, nut locking wiring, cast cable, etc.; Round aviation plug with right angle and bent angle; round aviation plug with pinhead and round aviation plug with pinhole; whether it has shielding performance: the round aviation plug used in different environments has different requirements for shielding performance. Some connector manufacturers providing personalized customization services will have industrial connectors with different shielding effects according to customer needs, such as 360 ° shielded round connectors. Hole location and model: When selecting a circular connector, in addition to considering the conventional connector standard, it is also necessary to check whether the hole location map of the connector meets the standard. 4.3 Precautions for use: the actual operation of the circular connector. In order to ensure the correct actual operation, it is necessary to fully grasp and understand the operation steps. Partial circular connectors do not have reverse operation errors. Models and specifications can also be matched to ensure accurate positioning and correct connection. In order to avoid the electrical contact caused by the damage of the aviation plug to the environment, it should be noted that it is inevitable to insert the pin into the power socket by mistake. In addition, the aviation plug must be connected in time, especially in some places that are not easy to check. It is also necessary to make detailed requirements in the corresponding operating procedures and check them according to the scope. When the aviation plug is connected at the end, the end connection and inspection shall be carried out in strict accordance with the corresponding end connection standards or regulations, and the end connection shall be carried out according to the matching connection points.

---------------------------------------------------------------------------------------------------

5、 some physical pictures of the circular connector products we represent/sell and substitute (pictures are for reference only):

---------------------------------------------------------------------------------------------------

6、 how to buy or know circular connector products? ：

World Trade Electronic Products Network-Production/Sales [Circular Connector Products]; If you want to buy or know what circular connector products we can provide solutions, please contact us through the following way.