This section provides an overview for capacitors as well as their applications and principles. Also, please take a look at the list of 41 capacitor manufacturers and their company rankings. Here are the top-ranked capacitor companies as of November, 2024: 1.CDE, 2.Vishay Intertechnology, Inc.,, 3.United Chemi-Con.
Table of Contents
A capacitor is a component consisting of a substance that does not conduct electricity sandwiched between two metal plates.
Generally, capacitors have two functions: to store an electric charge and to advance alternating current.
Capacitors are used in a wide range of applications, from home appliances to industrial equipment. They are always an integral part of products with electronic circuits. Specific applications of capacitors are as follows:
A capacitor is a component with a dielectric between two metal electrodes. When a DC voltage is applied between the two electrodes of a capacitor, an electric charge is stored in the electrodes because it cannot exceed the dielectric.
The stored charge initially behaves as if there is apparent continuity between the two poles. As the charge gradually saturates, the capacitor behaves as if it is completely open between the two poles. This is the principle of the capacitor.
Due to these properties of capacitors, they are used for the following:
There are several types of capacitors, including electrolytic capacitors, film capacitors, and electric double-layer capacitors.
Surface treatment is applied to the metal anode to form an oxide film, which serves as the dielectric. For the cathode, an aqueous electrolyte solution or the like is used. The most common anode material is aluminum, etc., due to its performance and price.
Metal foil or vapor-deposited metal is used for the electrode. The dielectric material is a plastic film. Film capacitors have no polarity and can be used in AC circuits.
Electric double layer capacitors do not use a dielectric. Instead, a boundary layer called an electric double layer is used to store an electric charge.
Capacitor performance is expressed in terms of capacitance. The unit of capacitance is pF or μF, with pF being the most common, except for large capacitors.
The reading of capacitance varies depending on whether the capacitance is greater than or equal to 100 pF, less than 100 pF, or if R is used in the display. 100 pF or greater has a trailing number that represents a multiplier. For example, a "541" capacitor is 54 x 10¹ = 540 pF.
If less than 100pF, just read the number as it is; if R is used, replace R with a decimal point. For example, a "4R7" capacitor is 4.7 pF. Tolerances for capacitors are also written in the alphabet.
In the case of "B," ±0.5 pF is represented for 10 pF or less, and ±0.1% for 10 pF or more. For example, "102J" capacitor is 10 x 10²±5% = 950pF to 1,050pF.
Capacitors are composed of alternating layers of electrodes and dielectrics. The dielectric contains electrolytes to increase the capacitance, which evaporates over time. This is called dry-up, and the life of an ultracapacitor ends when the electrolyte inside is drained.
Therefore, the life of an ultracapacitor is affected by the ambient temperature. When the ambient temperature rises by 10°C, the evaporation rate is approximately doubled. Conversely, if the temperature drops by 10°C, the evaporation rate is about 1/2 times faster.
General capacitors are specified at 105°C for 2,000 hours. If the ambient temperature drops by 10°C, the service life is 4,000 hours, and if the ambient temperature drops by 30°C, the service life is approximately 1.8 years. Capacitors also self-heat due to electric current. This temperature rise also affects the service life, so it must be taken into consideration.
In addition, the life of an ultracapacitor depends on the applied voltage. At the rated voltage, the capacitor can be seen, but when overvoltage or reverse voltage is applied, a chemical reaction occurs at the electrodes, shortening the life span.
*Including some distributors, etc.
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Founded in Irvine, CA in 1962, Skyworks Solutions, Inc. designs, develops, manufactures, and markets proprietary semiconductor products. Its product portfolio includes amplifiers, antenna tuners, attenuators, automotive tuners and digital radios, clocks and timings, circulators/isolators, DC/DC converters, demodulators, detectors, diodes, wireless analog system on chip products, directional couplers, diversity receive modules, filters, front-end modules, hybrids, LED drivers, low noise amplifiers, mixers, modulators, switches, synthesizers, timing devices, technical ceramics, voltage controlled oscillators/synthesizers, and voltage regulators. The company provides its products for the usage in aerospace, automotive, broadband, cellular infrastructure, connected home, entertainment and gaming, industrial, medical, military, smartphone, tablet, and wearable markets.
OMMIC, founded in Lowell, MA, in 1950 is a manufacturer of semiconductor products for Data Center, Telecommunication and Industrial and Defense applications. The company's product portfolio includes Optical Networking Solutions, Lightwave Components, Diodes, MMICs, and SDI Products. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. They have design centers and sales offices throughout North America, Europe and Asia and have ISO9001 international quality standard and ISO14001 environmental management standard.
Vishay Intertechnology, Inc. (Vishay) was incorporated in 1962 and is headquartered in Malvern, Pennsylvania. The company serves the industrial, automotive, telecommunications, consumer products, and medical end markets and sells its products under numerous brand names inlcuding Siliconix, Draloric, Beyschlag, UltraSource, and Applied Thin-Film Products. The company manufactures and sells discrete semiconductors and passive electronic components in globally while operating in six market segments: MOSFETs, diodes, optoelectronic components, resistors, inductors, and capacitors.
Tokin America Inc., headquartered in San Jose, California, is a supplier of passive electronic components in North, South, and Central America and is a subsidiary of Tokin Corporation. Its diverse product range includes capacitors, noise countermeasure components, and sensors used in several industries, including telecommunication, automotive electronics, and digital home appliances. The company also provides specialized design support and works with several distributors within the United States, including Future Electronics, WPG Americas, and Bravo Electronics.
United Chemi-Con, a subsidiary of Nippon Chemi-Con Corporation established in 1970, is a manufacturer and supplier of aluminum electrolytic capacitors based in Rolling Meadows, Illinois. It offers more than 8,000 products, which include multilayer ceramic capacitors, electric double-layer capacitors, film capacitors, camera modules, and silicon wafers. Its manufacturing plant is in compliance with RoHS standards and has acquired several certifications, including ISO 9001:11633, ISO 14001, IATF 16949:T187, and Eco-Action 21.
CDE, founded in Liberty, SC in 1909 is a manufacturer of optimal power capacitors. The company's product portfolio includes electrolytic capacitors, mica capacitors, AC film capacitors, DC film capacitors and Power Factor Correction Capacitors. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. They also provides services including national distribution, product selection, installation, preventative maintenance, troubleshooting, repair and customer service.
Electrocube, a company established in 1961 and based in Pomona, California, engages as a manufacturer of electrical components. It offers custom manufacturing for film capacitors like F-Dyne, Seacor, RC network, EMI, and RFI filters. It also manufactures transformers such as foil and current transformers, as well as transformer rectifier units. Its products serve aerospace, medical, military, and renewable energy industries. It adheres to RoHS, RoHS, and European REACH guidelines. In 2018, the company received the Silver Level of Boeing Performance Excellence Award. It also obtained ISO 9001:2015 and AS9100D certificates in designing, manufacturing, and distributing electronic passive and power components.
KULR Technology Group, Inc., established in San Diego, California in 2013 is a manufacturer of thermal management technologies lightweight heat exchangers, and protection against lithium-ion battery thermal runaway propagation. The company's product range includes Fiber thermal interfaces, internal short circuits, fiber thermal interfaces, thermal capacitors and cell checks. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. The company also offers services including Cell Screening, Fractional Thermal Runaway Calorimetry Testing and Bomb Calorimetry Testing.
TQ Abrasive Machining (TQAM) is an American contract manufacturer specializing in ceramic machining services that was established in Santa Ana, California in 1994. The company offers various ceramic design and fabrication capabilities, including CAD/CAM design and prototype development, as well as machine slotting, press machine extrusion, hole drilling, and grinding. These are geared to the production of medical ceramic parts, vacuum tubes, insulator rods, and ceramic tiles, among others. TQAM mainly serves clients in the biotechnology, medical, semiconductor, and consumer electronics industries.
Mallory Sonalert Products, Inc. is an American manufacturer of audible and visual warning devices that was established in 1968 as a subsidiary of the Mallory Electric Corporation. Headquartered in Indianapolis, Indiana, the company produces panel alarms, transducers, sirens, and speakers. These are designed to aid in monitoring patients, manufacturing operations, security maintenance, and indicating equipment statuses. Sonalert products are primarily used by clients in the industrial manufacturing, transportation, medical, and military sectors.
Ross Engineering Corporation, founded in 1964 and based in Campbell, California, is a manufacturer of a wide range of high-voltage electronic and electro-mechanical devices and is ISO 9001 certified. It stocks over 25 lines of high voltage devices such as voltmeters, relays, and probes used in several fields such as industrial plants, communication transmitters, and power supplies with ranges from 0.01mV to 1,200,000 V. The company is ISO/IEC 17025:2017 certified and has a calibration lab for testing and calibrating dividers, relays, and probes up to 450kV.
Based in Bayville, NY, SAE Manufacturing Specialties Corp. is an ISO-certified supplier and manufacturer of industrial equipment, chemicals, components, ordinance, electronics, and systems for industries ranging from aerospace to high tech to law enforcement. Examples of product offerings include raw materials, chemicals, and lubricants for industrial purposes to finished products such as security helmets for law enforcement, and military ordnances. SAE also provides research and development as well as technical support for other companies in similar industries.
C&H Technology was founded in 1979 and is headquartered in Minnetonka, Minnesota. The company is a privately held sales and marketing company specializing in power semiconductors and electronic components commonly used in heavy industrial applications such as welding, aluminum, waste treatment, industrial motor control, and solar inverters. The company partners with manufacturers such as Hitachi, ABB, Mitsubishi Electric, and Powerex. Some of the products the company offers include assemblies, bridge rectifiers, heat sinks, and MOSFET modules.
PLC Hardware (PLCH) was founded in 1993 and operates out of Owings Mills, Maryland. PLCH is an independent distributor of used and surplus industrial automation and networking equipment. PLCH offers a 1-year warranty on all products and ships globally. PLCH’s emphasis is on hardware and distributes hardware from such brands as Cisco, HP Networking, Rockwell Automation and Siemens. A few of the many categories of hardware include application networking products, cables, optical networking systems, routers, switches, rack servers, content delivery devices, as well as HVAC controllers, and safety integrated systems.
Hybrid Sources Inc., founded in 1985 and located in Wilmington, Massachusetts, is a manufacturer of thick film and hybrid substrates. The company offers a range of products, including aluminum nitride, screened gold, and solder reflow. These products find various applications in industrial packaging equipment, university and research institutions, and automatic testing equipment. Additionally, the company serves as a key supplier of carrier plates for wire bonding to both commercial and military satellite manufacturers.
CryoCircuits., established in, Ballston Spa, NY in 2001 is a supplier engaged in electronic components intended for cryogenic operation at 77K (liquid nitrogen). Their product range includes capacitors, resistors, logic and control circuits, current monitors and materials. The company also offers custom electrical test services from 400K to cryogenic temperatures. Testing includes characterization of capacitance, resistance, i, leakage current, and breakdown voltage. The companies products are used in All-Electric Ship and All-Electric Aircraft.
Admat, Inc. is an American supplier of refractory metals established in 1997 and based in Norristown, Pennsylvania. The company's product inventory includes refractory metals such as tungsten, niobium, titanium, and molybdenum in various forms for utilization in the industrial sector. These include rods, tubes, sheets/plates, and wire, as well as thin films and capacitors. Admat also provides custom machining and fabrication services for their clients in semiconductor production, chemical processing, and the defense industry.
Atesys-Montoux, established in 1987 and headquartered in Montoux, France, is a manufacturer of electronic components and solutions for power applications. Its product range includes power capacitors for voltage stabilization, transformers, inductors for energy storage, electronics for power such as converters and control systems, as well as customized solutions. These offerings cater to industries such as power generation, transmission, renewable energy, industrial automation, and the medical sector. The company also provides services like high voltage testing, thermal tests, and high voltage tests.
VINAtech Co., Ltd, established in 1999, in Seoul, South Korea, is a manufacturer of supercell capacitors, and single cell capacitors for electrochemical storage, RF solutions and integrated circuits. The company manufactures supercapacitors including energy efficient Hybrid Supercapacitor and Lithium Hybrid capacitor. They also produce Fuel cell materials such as Catalyst support, Pt/C Catalyst, and Membrane Electrode Assembly(MEA) comprehensively improvising efficient Carbon technology for environment sustainability. These are used in many industries ranging from infrastructure building for Smart city to consumer electronics, automotive and renewable energy applications for fast charging, higher energy storage and longer performance lives.
AENER ENERGÍA S.L.U. was established in 1994 and is located in Madrid, Spain is a manufacturer of power capacitors, automatic capacitor banks, and equipment. The company offers a comprehensive product catalog, including Uninterruptible power supply, voltage stabilizers, and power factor correction. It also extends services like offering complete software for the calculation of automation capacitors technical training, and pre-sales like installation. These products find applications in automotive, civil engineering, and power supply and distribution industries.
Nanotec Electronic GmbH & Co. KG, headquartered in Feldkirchen, Munich, Germany, is a manufacturer of motors and controllers for performance drive solutions since 1991. The products include motors, gearboxes, brakes, encoders, and actuators. Accessories include lubricants, capacitors, spacer sleeves, brake choppers, and connection cables used in semiconductor production, medical engineering, automation systems, the packaging sector, and laboratory automation. The company received the Top 100 award in 2022 for the second time in a row.
Meba Electric Co.,Ltd is a Chinese manufacturer of low-voltage electrical equipment that was established in Yueqing City, Zhejiang Province in 2006. The company produces various relays such as electronic and thermal overload relays, circuit breakers, AC contactors, and AC drivers. It also offers human machine interfaces (HMIs) such as MT4000/6000/8000 series touch panels, as well as programmable logic controller (PLC) and expansion modules. The company’s products are used mainly by clients in the construction, aerospace, energy, and petrochemical industries.
Sieyuan Electric Co., Ltd., founded in 1993 and headquartered in Shanghai, China, is a manufacturer of electrical equipment. The company specializes in electric power technology, equipment manufacturing, and engineering services. It provides mainstream power system operators as well as industrial and power-generating companies from more than 60 countries with products, solutions, and EPC projects. Its product portfolio includes high-voltage switch gears, power transformers, and automation systems. The company provides various case studies of its projects of railway, coal, power grid, as well as EPC cases.
Nippon Chemi-Con Corporation. was established in 1931 and is a manufacturer of aluminum-based products, precision mechanical components, and electronics equipment based in Shinagawa, Tokyo, Japan. The company's product portofolio offers various products such as aluminum electrolytic capacitors, multilayer ceramic capacitors, inductors, camera module, and silicon wafer. The products have been used in various application such as electric power steering, direct injection engine control, solar power inverter, switching power supply, and automotive micro computer power supply. The company has passed the ISO 9001, IATF 16949, and ISO 14001 standards certification. The products are manufactured under the compliance of RoHS and REACH/SVHC standards.
Jinzhou Kaimei Power Co., Ltd., established in 1996, is based in Jinzhou, China, and is a manufacturer of supercapacitors. As a pioneer in manufacturing supercapacitors, its products range from coin, winding, and combined-type supercapacitors to module and high-temperature supercaps and hybrid capacitors. It caters to car, electronic, power grid, telecommunications, and medical industries. The company is one of the founding members of the China Supercapacitor Industry Alliance. It obtained IS0 9001:2000, ISO 14001:2004, ISO TS 16949, and SGS certification, as well as in line with ROHS and REACH environmental standards.
ZONKAS ELECTRONIC CO., LTD., established in 1982 in Taiwan, is a manufacturer of inductors, capacitors, and electrical components. The company's main products include electrolyte capacitors, multilayer leaded ceramic capacitors, transformers, axial fixed inductors, and gas discharge tubes, used by OEM manufacturers worldwide. ZONKAS ELECTRONIC CO., LTD.'s registered brand is ZONKAS, and the company holds ISO 9001 and IS 14001 certifications. The company has its main factory and secondary office located in China.
Murata Manufacturing Co., Ltd. (Murata Manufacturing) was founded in 1944 and is headquartered in Nagaokakyo, Japan. Murata Manufacturing designs, manufactures, and sells ceramic-based passive electronic components and solutions globally. The company operates through components, modules, and others segments, serving communications, mobility, industrial, healthcare, and personal electronics customers. They company's product offerings include noise suppression products, quartz devices,RFID devices, phase shifters, and wireless connectivity platforms. Services such as webinars and video library are also available for existing and potential customers alike.
Mersen Electrical Power, founded in 1891 and located in La Défense, France, is a manufacturer of electrical power and advanced materials. The company’s products include low-voltage switches, DC distribution fuses, bus bars, capacitors, and fuse holders. The products are used in building, electric vehicles, energy, semiconductor, and infrastructure industries. The company has certifications like UL, ISO 9001, CSA, ISO 14001, and CE. The company has FTCAP, Idealec, Cirprotec, Eldre, and Ferraz Shawmut brands.
Omicron, established in 1984 and based in Texas, United States, is a manufacturer of a large range of electrical power systems. The company fabricates universal relay test sets and commissioning tools, PC software suites for advanced secondary testing, and universal primary injection test sets for substation assets. It also creates primary test managers, universal partial discharge measurement and analysis systems, and CT analyzers. Its universal relay test sets and commissioning tools have six current sources with a great dynamic range. The company holds various certifications, including ISO 9001, ISO 45001, and ISO 14001 covering quality assurance, environmental management, and health and safety.
CalRamic Technologies LLC was established in 2022 and is based in Reno, Nevada, as a manufacturer specializing in High Voltage Ceramic Capacitors. Its product portfolio includes radial leaded multilayer, disc capacitors, and surface mount chip capacitors. Each product is utilized in power supplies, military avionics, radars, geophysical, and geothermal industries. The company obtained ISO 9001:2015 certification for manufacturing and assembling capacitors for military, commercial, and aerospace markets. In addition, it also partnered with Voltage Multipliers Inc., a manufacturer of high-voltage diodes and power supplies.
Exxelia was born in Paris, France in 2009 from the merger of five companies, the oldest of which was SIC-SAFCO, founded in France in 1921. The combined conglomerate is a manufacturer of electronic components to electronics manufacturers worldwide. The conglomerate’s entities are organized into 3 global business units: Capacitors, Magnetics, and Resistors & Subsystems. Capacitors are divided into basic materials such as aluminum electrolytic, ceramic, film, and tantalum. Magnetics are divided into functions with inductors, transformers, and rotors as subsections. Resistors & Subsystems are also divided by function and design with resistors, filters, position sensors, and mechanics & subassembly.
Teledyne Defense Electronics was founded in 1960 and is headquartered in Rancho Cordova, California. The company is a manufacturer of electronics and components mainly for the commercial aviation and defense industries, but also for the communication, industrial, energy, and measurement industries. The company operates through brands such as Lincoln Microwave, Reynolds, MEC, and Storm Microwave. The company manufactures electronic test instruments, and security screening technology components, and provides MEMS & foundry capability for semiconductor and electronics manufacturing.
Walco Electric is a manufacturer of rotating electro-mechanical apparatus and automated process equipment, founded in 1931 and located in Providence, Rhode Island. They produce a range of industrial products, including electric motors and drives, instrumentation and controls, automation systems, industrial power systems, and rail transportation equipment, used in a various industries, including manufacturing, food processing, transportation, and healthcare. The company has received numerous awards, including the Providence Business News Manufacturing Champion Award in 2022.
Tense Elektronik is a manufacturer and supplier of electronic products and technologies in industrial automation solutions established in Turkey since 2006. The company specializes in automatic control sensors, controllers, energy analyzers, multimeters, frequency meters, ammeters, timers, among others. It serves industrial sectors such as automotive, manufacturing, construction, food and aerospace. The company's products improve operational efficiency, fluid processes in industries and the optimization of production lines and quality control processes. The company has certification in the Iso 9001:2015 Quality Management System, TSE Certificate and RoHS.
Geti. EU, established in 2016 and headquartered in Opava, Czech Republic, is a supplier that offers a wide range of proven electrical engineering products for households and companies. The company's products include LED strips, batteries, aroma diffusers, dehumidifiers, table lamps, and more. It also offers a search platform with alert functions based on various datasets, magnifiers, and safes with an electronic lock. Its product enables users to build models rapidly and accelerate innovation across their businesses with AI. Its products and services are relevant to various industries, including energy, aviation, and technology.
Allied Industrial Marketing, based in Cedarburg, Wisconsin, has been serving as a service provider and distributor of power quality solutions since 1982. Their product range encompasses capacitors, reactors, capacitor switching contractors, power factor controllers, and power quality filters. They also offer a comprehensive range of power quality services, including harmonic analysis, filter design and simulation, power quality diagnosis, and technical marketing support. Allied Industrial Marketing holds ISO 9001:2015 certification and is an EAI Master Distributor.
Hello BOM is an online electronic component storefront designed to bridge customers and suppliers. Customers supply Hello BOM with their bill of materials (BOM) and Hello BOM uses smart analysis via AI data matching to quickly find precise matches that customers need. This is accomplished via Hello BOM’s growing component stock and product information database to grow increasingly accurate and fast, while also simplifying the process of R&D and purchasing for customers. Products include semiconductors, resistors, capacitors, diodes, inductors, connectors, transistors, and sensors.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | CDE |
10.6%
|
2 | Vishay Intertechnology, Inc., |
6.7%
|
3 | United Chemi-Con |
6.5%
|
4 | Tokin America, Inc |
5.0%
|
5 | Ross Engineering Corp. |
4.0%
|
6 | KULR Technology Group, Inc. |
3.7%
|
7 | Electrocube |
3.3%
|
8 | Mallory Sonalert Products, Inc. |
3.3%
|
9 | TQ Abrasive Machining |
3.2%
|
10 | SAE Manufacturing Specialties Corp |
3.0%
|
Derivation Method
The ranking is calculated based on the click share within the capacitor page as of November 2024. 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 (%) |
---|---|---|
United States of America | 17 | 54.8% |
China | 3 | 9.7% |
France | 2 | 6.5% |
Japan | 2 | 6.5% |
Republic of Korea | 1 | 3.2% |
Spain | 1 | 3.2% |
Germany | 1 | 3.2% |
Taiwan | 1 | 3.2% |
Turkey | 1 | 3.2% |
Switzerland | 1 | 3.2% |
Czech Republic | 1 | 3.2% |
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