Circular connectors-Provide domestic and foreign brands of circular connectors

Circular connector (circular connector) is a type of connector whose basic structure is cylindrical and has a circular mating surface. In the interconnection classification, belongs to category 5, used for interconnection between equipment. Broadly speaking, it includes low-frequency circular connector, RF coaxial connector and audio connector. The cylindrical structure of circular connectors is naturally robust and has higher strength than any other shape. Our company agent sales of domestic and foreign brands of circular connectors; its agent sales of circular connectors in accordance with the type of transmission signal/electrical requirements are divided into: power circular connectors, signal circular connectors, high-frequency circular connectors, general-purpose circular connectors, high-power circular connectors, high-voltage circular connectors, pulse circular connectors, low-noise circular connectors, phase-modulation circular connectors, precision coaxial circular connectors, precision coaxial connectors, circular connectors, and so on. Connectors, precision coaxial circular connectors, military circular connectors, aviation circular connectors, medical circular connectors and so on.

1, what is a circular connector? :
Circular Connectors Introduction:
Circular connectors are connectors with a cylindrical basic structure and a circular mating surface. In the interconnection classification, belongs to category 5, used for interconnection between equipment. Broadly speaking, it includes low-frequency circular connectors, RF coaxial connectors and audio connectors. The cylindrical structure of circular connectors is naturally robust and has higher strength than any other shape.
Circular Connector Features:
1.Circular electrical connector structure is advanced, easy to use, high reliability, in line with the standard GJB2889;
2. Adopting bayonet type connection, pins and jacks can be loaded and unloaded separately;
3. The jack adopts wire-spring structure, and the pins and jack leads are crimped and welded;
4. Each type has nine models, 1-62 core total of 32 kinds of hole arrangement. Including XC-basic type (crimp), XCH-socket welding type, XCB-socket for the printed board welding type, sealed, double-head sealed shielded, unshielded and so on;
5. In order to ensure the match with various specifications of cables, you can choose FJA, FJC, FJD and other cable accessories;
6. Widely used in aviation, aerospace, post and telecommunications communications, computers, navigation and a variety of instruments, meters and other equipment.
7. Environmental conditions of use:
(1) Relative humidity: up to 95 [[%]] at 40°C.
(2) Working altitude: 30000m
(3) Vibration: Frequency 10～2000HZ Acceleration 196 m/s2 (20g)
(4) Impact: peak acceleration 980 m/s2 (100 g)
(5) Constant acceleration: 980 m/s2 (100g)
(6) Airtightness: 50.7KPa for through-wall sealed sockets; 152KPa for square disk sealed sockets.
(7) Mechanical life: ≥ 1000 times
Q type series circular electrical connectors are manufactured according to the standard SJ1744-81 of the Ministry of Electronics Industry, the product structure is reliable and easy to operate. The pin and jack leads are in welded form, and according to the user's needs, plugs and sockets can be fitted with both pins and holes. The product has a small size, light weight, fast connection, fast separation and other characteristics, is widely used in instrumentation, electronic equipment between the electrical connection.
Circular connector mechanical properties:
1. Shell: aluminum alloy
2. Surface treatment: military green cadmium (B) chemical nickel plating (F)
3. Insulated mounting plate: thermoplastic material
4. Seal ring: silicone rubber elastomer
5. Contact parts: copper alloy
6. Surface treatment: gold plating on nickel
7. Life: 500 insertion and removal cycles - Impact: 2940m/s2 3ms
8. Vibration:
Sine 294m/s2 10～2000Hz
Random 96(m/s2 )2/ Hz 408 m/s2,100-1000Hz
Random 480(m/s2 )2/ Hz, 100-300 Hz
9. Contact retention force (minimum)
#22D:44N #16:111N #8 Coaxial: 111N
#20:67N #12:111N #8 Triaxial: 111N
10. Electrical Performance
Withstanding Voltage (Vrms) Rated conditions of use: Sea level 21000m.
Circular connector composition:
Straight plugging steel ball fast locking circular electrical connector shell assembly, it is composed of plug, socket, plug shell assembly by the shell, locking sleeve, reed, pin, steel ball, shrapnel, gasket seven parts, locking sleeve assembled with the shell, the pin from the shell and riveted in the locking sleeve, locking sleeve and the shell is equipped with a rotatable 20 degrees, the plug shell is equipped with a 3-4 steel ball, docking locking role, locking sleeve is equipped with a straight groove, steel ball not supported, all retracted into the shell wall; inserted after rotating the locking sleeve support the steel ball will protrude from the shell wall, and extend into the circular slot in the socket shell to realize the plug and socket shell. Straight groove, the steel ball is not supported, all shrinkage into the shell wall; inserted after the rotation of the locking sleeve to support the steel ball will be protruding from the inner wall of the shell, into the socket shell ring groove to achieve the locking of the plug and socket. It also has the same anti-slanting plug, anti-wrong plug, electrical performance and shielding performance, anti-vibration, shock resistance, environmental advantages, locking and unlocking convenient and quick, small size is convenient to use. A

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2、The characteristics and applications of circular connectors are introduced:
Circular connectors, also called industrial connectors, are connectors with a basic cylindrical structure and a nearly circular mating surface.
Circular Connector Features
Circular connector plugs and sockets are mostly threaded, and their terminals can range from two to hundreds, with small size and high reliability, which can meet the needs of cable connection between electronic devices.
Circular Connector Applications
The cylindrical structure of the circular connector is naturally robust and has a higher strength-to-weight ratio than any other shape. It is easily machined on standard machine tools. Easier to seal, insert and remove. Simple and robust locking and containment mechanism. Ten years of technological development have made it possible to have a complete and rational process and a high degree of reliability. Therefore, the requirement to use in the multi-contact connector to realize the components and cable, cable to cable interconnection occasions, circular connector is the choice.

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3、What are the roles of circular power connectors? :
Even in the field of electronics, circular power connectors are used to transmit power and signals and to carry network and data signals throughout the device. These multi-pin contacts are designed to be easy to install and remove, and over the years circular power connectors have evolved to become some of the most common because they are more compact and offer a smaller envelope compared to rectangular power connectors. Different applications require different designs, and circular power connectors can effectively disconnect and reconnect power cords from equipment. They were developed to replace the hard wiring of power cables, which are often damaged or require extensive repairs when changing power sources. The circular power connector was introduced and provides a fast and compact solution to this problem. They are also used in a wide range of applications, from medical equipment to street and vehicle lighting, and from industrial machinery to consumer electronics. Their circular shape is ideal for a variety of locking methods, such as threaded push-pull and bayonet locking designs, and they are typically manufactured from both metal and plastic. Its rubber can also be used for waterproof or dustproof connectors, and these locking methods are easy to maneuver. Circular connectors also allow for a large number of contacts to be packaged into a relatively compact size, and it is rated from 200 to 600 ac/dc, 1 to 2 A to several hundred amps, and is available in a wide range of pin counts and configurations. When choosing to specify circular power connectors, it is important to consider international power standards such as IP (International Protective Marking Standard Ratings) and Mil-spec. IP standards help determine if the connector is dustproof, waterproof, and so on. In fact, knowing a great deal of data is critical to safely specifying circular power connectors. First you must 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. Secondly understand all the functions that the connector needs to fulfill, for example if you need a compact design that can carry both power and coaxial signals, then a hybrid design may be a better choice.

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4、The advantages and disadvantages of circular connectors and how to choose circular connectors and the precautions to be taken when using them::
4.1, Advantages and disadvantages of circular connectors:
[Advantages] Circular connectors are ideally suited for applications requiring stronger terminals. Their cylindrical shape makes them carry particular resistance to mechanical engineering turbulence and shock as well as damage. The contact resistance of circular connectors should be low and stable. The contact resistance varies from a few milliohms to several tens of ohms. The insulation resistance measures the technical properties of the insulation between the contacts of a circular electrical connector as well as between the contacts and the housing structure and ranges in size from a few hundred megohms to several gigohms. Dielectric strength or withstand voltage, or dielectric withstand voltage, is a circular electrical connector characteristic that refers to the resistance between contacts or between contacts and shell relative to the rated test voltage. EMI Leakage Attenuation is used to evaluate the shielding effectiveness of circular electrical connectors. The frequency range usually measured is 100mhz ~ 10ghz.
[Disadvantages] The circular surface area restricts the arrangement of pins and receptacles on the surface of a circular connector; a connector with a rectangular face allows more contacts to be mounted on a smaller surface area at a larger and uniform spacing.
4.2. What if I choose a circular connector?
Circular connector bayonet type: In the purchase of circular connectors should pay attention to the selection of suitable, matching bayonet type, mainly 1/4 quick bayonet type connection, plug type connection, latch connection, quick plug connection, threaded connection, zipper connection and so on;
Circular connector wiring: crimp wiring, solder wiring, nut locking wiring, casting cable, etc.; Circular aviation plug right-angle type and curved-angle type; Pin head circular aviation plugs as well as pin hole circular aviation plugs;
Whether the shielding performance: different environments used in the circular aerial plug on the shielding requirements are different, some connector manufacturers to provide personalized customized services will be based on customer demand for industrial connectors with different shielding effects, such as 360 ° shielding circular connectors.
Hole position and model: When purchasing circular connectors, in addition to considering the conventional connector standards, you should also check whether the connector's hole diagram meets the standards.
4.3. Precautions for use:
Practical operation of circular connectors In order to ensure its correct practical operation, it is necessary to fully grasp and understand its operating procedures. Some circular connectors do not have reverse operation errors. In order to ensure accurate positioning and correct connection, the model and specification can also be matched. In order to be able to avoid electrical contact caused by the aviation plug damage to the environment, care should be taken to avoid incorrectly inserting the pin into the power socket. It is also necessary to connect the aviation plugs in time, especially in places that are not well inspected. It is also necessary to make detailed requirements in the corresponding operating procedures and check them according to the scope. When connecting the ends of the aviation plugs, the end connections should be made and checked in strict accordance with the corresponding end connection standards or regulations, and the end connections should be made according to the number of matching connection points.

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5, our agent / sales and alternatives to the circular connector product part of the physical picture (picture for reference only):

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6、How to buy or learn about Circular Connectors products? :

Manufacture/Sales of Circular Connectors; If you would like to purchase or find out what Circular Connectors solutions we can provide, please feel free to contact us through the following ways.