This section provides an overview for conductive polymer capacitors as well as their applications and principles. Also, please take a look at the list of 11 conductive polymer capacitor manufacturers and their company rankings. Here are the top-ranked conductive polymer capacitor companies as of November, 2023: 1.Europe Chemi-Con, 2.ROHM Co., Ltd., 3.Matsuo Electric Co.,Ltd..
Conductive Polymer Capacitor is a capacitor that uses a conductive polymer as the electrolyte material and is characterized by low impedance, excellent high frequency characteristics, and insensitivity to temperature and applied voltage.
They have more stable capacitance, lower ESR (equivalent series resistance), and higher reliability than conventional capacitors, contributing to the realization of higher performance electronic devices.
Conductive Polymer Capacitors are used in a wide range of applications due to their stable capacitance, low impedance, fast charge/discharge performance, and high reliability. The main applications are as follows
Conductive Polymer Capacitors are used in portable electronic devices such as smartphones, tablets, and laptop computers. They are particularly suited for use in battery-related circuits and high-frequency circuits, which require high-speed charging and discharging performance.
In-vehicle electronic equipment is required to operate under severe environmental conditions such as high temperature and high humidity. Conductive Polymer Capacitors are suitable for in-vehicle electronic equipment that requires high reliability and durability.
The drive circuits of OLED displays require high-speed charging and discharging performance. Conductive Polymer Capacitors are used in the drive circuits of OLED displays because of their fast charging and discharging performance.
Photovoltaic inverter circuits require high-speed switching. Conductive Polymer Capacitors are used in the inverter circuits of photovoltaic power generation, taking advantage of their high switching performance.
Conductive Polymer Capacitors can be considered to be based on conventional tantalum electrolytic capacitors and aluminum electrolytic capacitors. Conventional types of electrolytic capacitors use manganese dioxide or electrolyte as the cathode.
Conductive Polymer Capacitors, on the other hand, are electrolytic capacitors that use a conductive polymer as the electrolyte. In other words, a polymer type aluminum electrolytic capacitor uses aluminum foil as the anode, a Conductive Polymer as the electrolyte, and aluminum as the cathode material.
In the case of a polymer-type tantalum electrolytic capacitor, the anode is made of tantalum metal and the electrolyte is made of a conductive polymer. The conductive polymer referred to here is a polymer such as polypyrrole polythiophene.
Conductive Polymer Capacitors currently available in the market are of the following types.
The anode is an aluminum foil, the dielectric is an aluminum oxide film, and the electrolyte is a conductive polymer in contact with a silver electrode. It is a multilayer type and characterized by miniaturization.
Conductive Polymer Capacitor is a tantalum electrolytic capacitor in which the electrolyte is replaced by a conductive polymer instead of manganese dioxide. It is also characterized by its high safety.
The cathode material of conventional OS capacitors is replaced with a polymer. It features high ripple and high withstand voltage characteristics.
This type of capacitor combines an electrolyte and a conductive polymer as the electrolyte in an aluminum electrolytic capacitor. It has the same shape as the conventional aluminum electrolytic capacitor.
1.Low Esr (Equivalent Series Resistance)
Conductive polymers have low ESR due to their low resistance and large surface area. This enables high-speed charging and discharging.
2. High Heat Resistance
Conductive polymers generally have high heat resistance. This allows them to be used in high-temperature environments.
Conductive polymers are highly flexible, making them highly durable and reliable against external forces such as vibration. In addition, low ESR means low heat generation due to current during charging and discharging. This greatly affects the life of the capacitor and is one of the reasons for the long life of Conductive Polymer Capacitors.
*Including some distributors, etc.
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KEMET has a portfolio of over 1,600 patents serving the automotive, aerospace, industrial, telecommunications, computing, consumer, and medical devices. KEMETs devices provide filtering, sensing, energy storage, power conversion, and haptic actuator technology. Among these devices are capacitors, electromagnetic compatibility (EMC) components, resistors, circuit protection devices, inductors, sensors, Piezoelectric devices, release, transformers, and engineering kits.
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.
Toshin Kogyo CO., LTD., established in 1951 and headquartered in Tokyo, Japan, is a manufacturer that manufactures, imports and sells electronic components. The company produces electronic components such as aluminum electrolytic capacitors, capacitors for audio equipment, film capacitors, and liquid crystal modules. It also released an aluminum electrolytic capacitor series for acoustic applications called the UTJH series. The UTJH series has a wide temperature range of -40°C to +85°C, which makes it suitable for use in various environments. The company has achieved ISO-14001 and ISO-9001 certification. It serves industries such as electronic components, printing, and fabric industry.
Panasonic Industry Europe is the European branch of Panasonic, a global manufacturer of electronics and houseware, originally founded in 1918. Panasonic Industry Europe manufactures in 4 categories: components, devices, energy & building, and automation devices & solutions. Components include relays, capacitors, resistors, sensors, switches, connectors, couplers. Devices include wireless connectivity, e-bike systems, motors, compressors, thermal solutions, GPS antennas, as well as electronic materials. Energy & building includes batteries, fuel cells, solar sells, power tools, and home IoT. Automation devices & solutions include sensors for factory automation, industrial motors, laser welding, and more.
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.
Lelon Electronics, a company established in 1976 and based in Taipei, Taiwan, is a manufacturer and supplier of electrolytic capacitors. The company specializes in producing capacitors for various applications. Their products include a diverse product line of electrolytic capacitors, which includes radial aluminum electrolytic capacitors, organic conductive polymer capacitors, and conductive polymer hybrid capacitors. These capacitors are widely used in industries such as consumer electronics, telecommunications, and renewable energy. The company also provides services such as technical support, product customization, and on-time delivery. The technical support team assists customers in product selection and troubleshooting to meet customers’ requirements.
SUN Electronic Industries Corporation, established on December 22, 1958, and headquartered in Osaka, Japan, is a manufacturer and supplier of aluminum electrolytic capacitors and power supplies. The company is engaged in providing electronic and contract manufacturing services to various sectors. Their product offerings include conductive polymer-hybrid, DC-DC converters, and various power supplies. These products are widely utilized in the automotive, telecommunications, aerospace, and consumer electronics industries. The company also offers a range of services, including design support, prototyping, testing, and after-sales support to meet customers’ needs.
Matsuo Electric Co.,Ltd., founded in 1949 in Japan, is a specialty component manufacturer of tantalum capacitors, film capacitors, and circuit protection components. The company's microelectronics products include small size, long life, chip tantalum capacitors, leaded tantalum capacitors, fuses, and PET and PPS-type film capacitors used by original equipment manufacturers in a wide variety of industries, including the automotive, electronics, space, and healthcare markets for fire alarms, personal computers, power tools, hearing aids, automotive navigation, and many more devices. Matsuo Electric Co.,Ltd.'s products are RoHS compliant.
ROHM Semiconductor was incorporated in 1940 and is headquartered in Kyoto, Japan. ROHM manufactures and sells electronic components worldwide. ROHM operates through the segments ICs, discrete semiconductor devices, and modules. ROHM provides ICs comprising memory, amplifiers and linear, power management, clocks and timers, switches and multiplexers, logic, data converters, sensors and MEMS, display drivers, motor/actuator drivers, interfaces, communication and speech synthesis LSI, audio and video, and microcontrollers. ROHM also offers discrete semiconductor products include MOSFETs, bipolar transistors, and diodes; power devices, including power transistors and diodes, SiC power devices, IGBT, and IPM; passive devices, such as resistors, and conductive polymer and tantalum capacitors; and various modules among others.
Kaimei Electronics Corp., founded in 1978, is a manufacturer of aluminum electrolytic capacitors and motor fans. The company offers aluminum electrolytic capacitors, metallized polyester capacitors, metallized polypropylene capacitors, and other products. These components are primarily used in general telecommunication products, consumer electronics like DVDs, video and audio products, game machines, phones, and computer information products such as motherboards, monitors, and computer peripherals. It operates under the IECQ and ISO 9002 quality systems and has earned Panasonic's Certificate of Appreciation.