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This section provides an overview for waterproof connectors as well as their applications and principles. Also, please take a look at the list of 40 waterproof connector manufacturers and their company rankings. Here are the top-ranked waterproof connector companies as of January, 2025: 1.Circuit Assembly, 2.KINSUN Industries Inc, 3.NORCOMP.
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Categories Related to Waterproof Connectors
Waterproof connectors are connectors that prevent water from entering the electrical wiring and prevent electrical problems, such as shorts between terminals from occurring, even if the connector is exposed to water.
Waterproof connectors consist mainly of a connector body and a rubber packing that fill the gap. In order to prevent water from entering the connector, the male and female connectors are mated in a press-fit manner, with no gap between the male and female connectors. This makes the removal of waterproof connectors harder and more difficult than non-waterproof connectors.
Some products have a lever on the connector to improve the reliability of waterproof connectors, and by lowering the lever after mating the male and female connectors, the connector will not come off unless the lever is raised again. Waterproof connectors are used in places where waterproofing and dustproofing are required, such as cars and motorcycles that are used in the rain, as well as ships and machine tools.
Waterproof connectors are used in places where a large amount of electrical wiring is required and where water and dust resistance is required. For example, they are used for products that are stored in the rain or used in the rain, such as cars and motorcycles.
Other than that, it is also useful for products such as machine tools that use a large amount of cutting oil and are constantly exposed to a humid environment while producing a large amount of chips and ships that may be exposed to seawater. They are also often used in machines used in clean rooms, such as machines for semiconductors.
Waterproof connectors have different standards for waterproof performance, and since different products have different standards for waterproofness. It is necessary to check them carefully according to the application for which they are used.
Waterproof connectors generally consist of a connector body that mates with the mating device and a rubber packing that fills the gap to prevent water from entering. The rubber packing is attached like a plug to fill the hole not only on the mating surface of the connector but also on the connection surface with each wire that enters the connector.
In many cases, when wires and terminals are crimped, the rubber plugs are rolled in and crimped together. Both the male and female sides contain similar packing, and when the connectors are mated, the packing eliminates the gap between each other to maintain airtightness. For this reason, waterproof connectors are more difficult to attach and detach. firmly when mated than non-waterproof connectors.
Some products have a lever attached to the connector, which must be physically raised or lowered to prevent it from coming off due to vibration after mating.
There are many types of waterproof connectors, depending on the connection method.
Permanently engaged waterproof connectors can be purchased at general home improvement stores. They are mainly used for devices such as motorcycles and cars. The always engaged waterproof connector has a rubber packing inside to provide high waterproof performance.
Although it is possible to install the connector as if you were a carpenter, since the male and female connectors are mated without a gap for waterproofing, it requires a little trick to disengage the connector once it is engaged. In the worst case, if the connector is removed in the wrong way, the connector itself will break, making it impossible to demonstrate its waterproof performance, so care must be taken.
Also, since it is made of plastic, it is slightly less weather resistant.
Metal plug-type waterproof connectors are often used for industrial applications. These are very easy to install and remove because the male and female plugs mate with screws.
Since they are made of metal, they are strong and reliable, and can be used outdoors without problems. Panel-mounted type is often used for penetrating through machines and control panels.
They are pre-installed on the back of the machine, etc., and can be easily connected by tightening screws and mating. These waterproof connectors are also called "cable grants."
When connecting numerous wires one by one in an area where water and dust resistance is required, it is very time consuming. In addition, if all the wires are in an area that may be disassembled or repaired in the future due to damage or short-circuit caused by exposure to water. It will be impossible to disassemble or repair the entire unit without disassembling the entire unit.
Therefore, it is common to use a component called a "connector" to divide the wire into appropriate sections and connect them as a single wire by mating the connectors together. Waterproof connectors are useful in outdoor locations where water or dust may enter.
*Including some distributors, etc.
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NorComp Inc., established in 1983 and headquartered in North Carolina, US, is a manufacturer that specializes in the design and marketing of I/O interconnect products. The company offers a wide range of products, including D-sub connectors, circular connectors, and micro D-connectors. It also offers various types of push-pull connectors, cable assemblies, and backshells. Its products are designed for use in harsh and severe environments. The company has achieved ISO 9001:2015, RoHS, and REACH certifications and it serves a diverse range of industries, including military, aerospace, medical, transportation, and energy.
Mencom Corporation is a manufacturer and provider of Industrial Power, Control, Signal & Networking Connector Solutions that meet industrial electrical connector requirements. The company was founded in 1987 and is based in Oakwood, Georgia. Mencom's range of products includes Molded cables and receptacles for sensors and actuators, Multi-pin industrial rectangular connectors for power and data lines, as well as Junction Blocks for power & signal distribution. The company also offers various Industrial Networking Solutions for the industry 4.0 Smart Factory applications.
Milnec Interconnect Systems, founded in 2010 with headquarters in the USA, is a manufacturer of circular connectors and components. The company's standard product line includes plugs, backshells, dust covers, contacts, and crimp tools for a wide range of military-spec and IP67 commercial-grade circular connectors. These products are used for applications that require standard specifications, for example, in military applications, harsh environments, and high-spec applications required by various industries, including medical, aerospace, marine, and energy.
Circuit Assembly (CA), founded in Irvine, CA in 1969 is a manufacturer of connectors and cable assemblies The company's product portfolio includes Electrical Connectors, Data Connectors, Wireless Connectors and Rugged and durable connectors built to withstand harsh industrial environments. Their products are used in markets such as Automotive and Transportation, Telecommunications, Industrial Automation, Healthcare and Medical Devices and Aerospace and Defense. In 1999 they opened an additional manufacturing plant in China.
Amphenol Nexus Technologies, established in 1961 and headquartered in Stamford, Connecticut, is a manufacturer and supplier of audio connectors and interconnect systems. Their product portfolio includes XLR connectors, MIL-DTL-55181 connectors, and tactical fiber optic systems, ensuring seamless communication and signal transmission. Other products include telephone plugs and jacks, waterproof breakaway connectors, microphone plugs and jacks, and push-button switches. They hold ISO 9001:2015 certification, serving industries such as broadcast, military, aerospace, and industrial automation.
Founded in 1966 in Springfield, Missouri USA; Positronic is a manufacturer and supplier of electronic connectors to the global electronics industry. They manufacture six different types of connectors, including power, circular, rectangular, fiber optic, and thermocouple. Positronic's main headquarters are in Missouri, with two other locations in Auch, France and Geylang, Singapore. As of 2023, there are 402 official distributors of Positronic electronic connectors around the world. They supply 73 categories of parts used in connected different electrical components.
DDK Ltd., founded in 1963 and currently a subsidiary of Fujikura Ltd., is a Japanese manufacturer and supplier headquartered in Koto-ku, Tokyo, specializing in electronical connectors. The company’s product range includes automotive, board-to-board, circular and rectangular, coaxial, as well as flexible flat cable (FFC)/flexible printed circuit (FPC) connectors. These connectors are utilized across industries such as automotive, applied in automotive navigation systems, electronic toll collections, and vehicle audio devices; base stations of wireless computer networking; factory automation, applied in control equipment, industrial robots, servomotors, and welding machines; and information technology, applied in digital cameras and video cameras, mobile devices, and measuring instruments.
J.S.T. (U.K.) LTD. is a electrical and electronic connectors manufacturer founded in 1982 in Suffolk, United Kingdom. The company displays a wide range of products, such as PCB, I/O, Wire to Wire and Factory Automation connectors. It also produces Crimp, DIN, Tape-on and Solderless terminals. In addition, it offers services like Product and Tooling Technical Support, Design and Development, and Laboratory and Testing. It works under the IATF16949 Quality Management Systems and is certified for ISO 14001, ISO 9001, and ISO 16949.
HIROSE ELECTRIC CO., LTD. (HRS) is a Japanese manufacturer specializing in electronic and electrical connectors. Founded in Tokyo in 1937, the company now has eight factories located in Japan, China, Korea, Malaysia, and Indonesia, with several sales and service locations throughout the US, Europe, and Singapore. The company carries a selection of over 50,000 products, including fiber optic connectors, sealed connectors, and card edge connectors. HRS also offers advanced engineering services to cater to specific customer demands, and after-sales support to clients in the consumer electronics, automotive, and telecommunications industries.
GT Contact (GTC), located in New Taipei City, Taiwan, is a manufacturer of waterproof connectors. Their product range includes waterproof circular connectors, waterproof RJ connectors, waterproof USB connectors, and weatherproof power connectors. These connectors secure connections in harsh environments and are available in various configurations. They meet IP67 and IP68 standards, demonstrating their ability to withstand temporary or prolonged immersion in water. GTC has several certifications, including TUV, ISO 9001, and ISO 14001.
Técnica de Conexiones, S.A., (TEKOX), established in 1976, is a designer, manufacturer, and retailer of low voltage connection material headquartered in Llanera, Asturias, Spain. The company's product portfolio comprises various solutions for electrical installations and lighting including DIN rail terminal blocks, solar connectors, plug-in terminal strips, branching blocks, and street lighting street boxes. The company was awarded the Registered Company Certificate according to ISO 9001 in 1992 and offers products certified by the most important international organizations, according to the required regulations.
JST Group, founded in 1957, is an international manufacturing company specializing in the development of all types of systems for connecting electric power and electronic devices. It obtained ISO9002 approval in 1993, and it has gone on to open offices and affiliated companies in Europe, America and other parts of Asia. JST uses modern advances like ultraprecision technology, gold plating processes, CNC copy grinder, to ensure quality and improved performance of every appliance it manufactures. JST products can be used in televisions, laptops, trains, medical equipments and even kitchen appliances.
Japan Aviation Electronics Industry, Ltd, commonly known as JAE, was established in 1953 and headquartered in Tokyo, Japan. The company is a designer and manufacturer of connectors, user interface solutions, and electronics for the aerospace, agriculture, semiconductor, and camera stabilization sectors. THe company’s product segments include IO connectors, board to board connects, cable to cable connectors, and more. The company’s motion sensing and control segment includes accelerometers, inertial measurement units, and directional modules.
Shenzhen Weichat Technology Co., Ltd. (SWT) is a Chinese manufacturer and supplier of waterproof junction boxes as well as connectors that was established in 2016 in Shenzhen. The company primarily produces waterproof connectors for providing stable electrical connectivity in demanding environments, as well as waterproof junction boxes or enclosures that protect outdoor and underground wire or cable assemblies. It also offers custom design and engineering services for unique customer projects requiring specialized sizes or shapes. SWT products are used mainly by clients in the industrial automation, marine infrastructure and renewable energy sectors.
Ningbo Max Electronic Technology Co., Ltd, established in 2012 and based in Zhejiang, United States, is a manufacturer of electronic components. The company offers products such as terminal blocks, DIP switches, female headers, pin headers, and waterproof connectors. All the products are manufactured according to the ISO9001-2008 quality management system certification and pass CE, TUV, UL, CUL, and other international standards. The company-made products are supplied to different countries such as China, Russia, Germany, Spain and Italy.
KINSUN Industries Inc, established in Taoyuan City, Taiwan in 1997 is a manufacturer engaged in electronic components and connectors for telecom networks. Their product range include telecommunication network connector, waterproof connector, RF antenna, medical component, automotive component, and stamping parts. Company has two factories in China in Guangzhou and Suzhou as well as the main factory in Taiwan with 300 employees. Their product has certificate of ISO9001 ISO 14001, and IATF 16949.
Dietze Group is a German ISO 9001 certified manufacturer of custom electrical interconnector products that was established in 1921. Based in Coburg, Germany, the company offers connector pins and stamping used in electronics, lighting, and sensors, as well as lead-in wires that provide a hermetic seal. It also offers glass-to-metal seals that can withstand extreme conditions, along with contract manufacturing services for product design, engineering, prototyping, and testing. Dietze Group products are used mainly by clients in the oil and gas, military, automotive, and refrigeration industries.
Amphenol Communications Solutions, founded in Connecticut, in 1988 is a manufacturer of interconnect solutions for Communications, Mobile, and Commercial electronics markets. The company's product portfolio includes cable assemblies for applications including networking, business equipment and automotive, connectors and IOT modules. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. The company also offers customer services that include support, custom research projects and customized services.
Anderson Power was established in 1877 and is based in Sycamore, Illinois as manufacturer and supplier of power interconnect solutions. Their product portfolio includes power connectors, battery connectors, modular connectors, and cable assemblies, among others. The power connectors and accessories offered by the company are crucial components in electrical systems, enabling secure and efficient power transmission. The products are used in Data Centers as connector solutions for Busways, Uninterruptible Power Supplies, Power Distribution Units, and Power Supply Units. They are utilized in high-capacity HVAC systems to autonomous robotics charging and also outdoor high-current applications.
Omron Corporation, started in 1933 and headquartered in Kyoto, Japan, is a manufacturer of automation components, equipment, and systems, and it developed the first contactless proximity switch in 1960. It has four domains, including industrial automation, electronic components, healthcare, and social systems, and it provides products and services in around 120 countries and regions. Some of its products include microsensing devices, access control systems, industrial robots, surveillance cameras, and blood pressure monitors. In 1971, it developed the first online cash machine, and in 1972, it established Japan’s first welfare factory.
Bulgin serves the industrial, maritime, energy, automotive, agricultural, telecommunications as well as consumer electronics industries. Bulgin is a global leader in sealed connectors and components as well as electromechanical switches. Bulgin offers customized cable designs for customers needing specific designs to protect cable integrity or safety.
Shenzhen Rigoal Connector Co.,Ltd is a manufacturer and supplier of waterproof connector and cable solutions that was established in 2013 and is located in Shenzhen, China. The company’s product range includes solenoid valve connectors, waterproof power connectors, circular plastic connectors, industrial Ethernet connectors, and LED waterproof connectors. The waterproof connectors and cables are essential for dependable and safe power and signal trensfer in harsh environments. The products are applied in various industries such as sensor, power, Ethernet, automotive, and LED. It is also compatible with M5, M8, M9, M10, M12, M16, M18, M20, M23, and M40 standards.
Deltron AG was founded in 1978 in Switzerland as a manufacturer and distributor of connectors. The company manufactures a large variety of D-Sub connectors, housings, adapters, and high-quality contacts. There are also Thermoelectric assemblies and modules, terminal blocks, and accessories for D-Sub products being designed and distributed. These connectors come in different versions like High Density, Dual-Port, Combi, and Filter D-Sub and they are available in press-fit, surface mount, and waterproof up to IP68 that have uses in the Telecommunication sector, for connecting and disconnecting power lines and for machines and equipment that is exposed to dust and liquids.
Shenzhen Aohua Electric Corporation Limited, founded in 2010 with headquarters in China, is a manufacturer of waterproof and high-current connectors. The company's products include waterproof electrical connectors, LED string light connectors, distributor LED connectors, and automotive LED cable connectors. Shenzhen Aohua Electric Corporation Limited’s products are found in outdoor LED lighting, LED displays, communication infrastructure such as mobile base stations, marine electronics, global positioning system peripherals, and automobile electric applications. The company also provides customized design and production to meet client-specific requirements.
EDAC, Inc., established in 1966 and headquartered in Markham, Ontario, Canada, is a manufacturer and distributor of connectors for Card Edge and Rack & Panel applications. Their diverse product range includes machined D-Sub connectors, power combo D-Sub connectors, USB connectors, HDMI connectors, and more, catering to industries such as aerospace, defense, industrial, medical, and transportation. EDAC adheres to various multi-regulatory compliance requirements, including RoHS, UL, ISO, REACH, Conflict Materials, California Prop 65, and ITAR (International Traffic in Arms Regulations).
Tocone Co. Ltd. is an ISO 14001:2015-certified manufacturer and distributor of radio frequency (RF) products that was established in 1947 in Tokyo, Japan. The company offers coaxial RF connectors in a range of connector types and sizes, quick adapters for on-the-go measurement operations, and dummy load devices for terminating the end of a transmission line under test. The company’s products are used mainly by its clients in architectural engineering, telecommunication, and audio editing.
Empowerment Technologies Inc., established in 1999 and based in Niagara Falls, Canada, is a manufacturer and supplier of security camera systems. The company's product range includes 4K wired cameras, 2K WiFi-Guard cameras, accessories, fake cameras, and certified open box items. These security products offer surveillance capabilities for homeowners and business owners, providing peace of mind. The company primarily serves retail stores, warehouses, homeowners, and other businesses in need of security surveillance. Its services include customer support through the support center, direct contact options, and both warranty activation and extended warranty offerings.
HTP Asia Technology Co., Ltd (HOLIN-TECH), located in Taoyuan, Taiwan, is a manufacturing company that develops and supplies waterproof connectors, cable assemblies, and accessories. The company is an ISO 14001:2015 and ISO 9001:2015 certified company and has certifications from various bodies, including the National Marine Electronics Association. HTP Asia Technology Co., Ltd manufactures RoHS-compliant and IP66~68-rated connectors and cable assemblies. The company makes these products for industries dealing with electronic interconnection, automation, data/signal networking, marine field, and outdoor lighting.
LEADER TECHNOLOGY CO., LIMITED was founded in 2000 and is based in Shenzhen, China, and is a supplier of solar photovoltaic connectors and cables as well as solar photovoltaic tools for various industries. The company provides solar connectors, waterproof cable connectors, PV junction boxes, solar cables, and, PV assemblies, along with In-Line fuse, diode connectors, extensions, and, solr installation tools for solar modules, solar energy appliances, power generation systems, and research & development arenas.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | KINSUN Industries Inc |
8.5%
|
| 2 | Circuit Assembly |
6.8%
|
| 3 | Shenzhen Weichat Technology Co., Ltd. |
5.9%
|
| 4 | NORCOMP |
5.1%
|
| 5 | Shenzhen Rigoal Connnector Co.,Ltd. |
5.1%
|
| 6 | Amphenol Nexus Technologies, Incorporated |
5.1%
|
| 7 | Milnec Interconnect Systems |
4.2%
|
| 8 | Positronic |
4.2%
|
| 9 | LEADER TECHNOLOGY(SHENZHEN)CO.,LIMITED |
3.4%
|
| 10 | Mencom Corporation |
3.4%
|
Derivation Method
The ranking is calculated based on the click share within the waterproof connector page as of January 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
9 | 27.3% |
|
United States of America
|
7 | 21.2% |
|
Japan
|
5 | 15.2% |
|
Taiwan
|
4 | 12.1% |
|
United Kingdom
|
2 | 6.1% |
|
Switzerland
|
2 | 6.1% |
|
Spain
|
1 | 3.0% |
|
Canada
|
1 | 3.0% |
Australia
|
1 | 3.0% |
Germany
|
1 | 3.0% |
293 products found - Page 3
293 products - Page 3
Mibu Electric Manufacturing Co., Ltd.
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A connector that is resistant to harsh environments. Highly waterproof and has excellent workability. Automatic locking mating with twist-lock feat...
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■Summary BW series, waterproof BNC connector. IPX7 compliant, ideal for outdoor video wiring. ■Features ・Waterproof performance IPX7 compliant ・...
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■Push-on lock mechanism that requires no construction work ・Complete locking with easy operation (connection strength of 450N or more) ・Torque ma...
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■Connect and completely lock with one push. With conventional connectors, it took about 15 seconds to install, but now it is possible to install wi...
