This section provides an overview for wirewound resistors as well as their applications and principles. Also, please take a look at the list of 26 wirewound resistor manufacturers and their company rankings. Here are the top-ranked wirewound resistor companies as of December, 2023: 1.JDC, 2.Spohn & Burkhardt GmbH & Co. KG, 3.LPC Components Ltd..
Wirewound resistors are resistors with a structure in which resistors, which are electric heating wires, are wound around a porcelain material.
There are various types and characteristics of resistors, and they are used according to their applications and purposes.
Types of resistors:
Wirewound resistors are resistors consisting of an electric heating wire wound around a porcelain material, and have a low temperature coefficient and good heat resistance. They have a low temperature coefficient and good heat resistance. They are also used as resistors for current detection because they have relatively low current noise and resistance values.
The disadvantage of wirewound resistors is that they have an inductance component due to the structure of the resistor wire wound on a bobbin, and their high-frequency characteristics are not very good. The resistance value is adjusted by the wire type and number of turns, and resistors with higher resistance values are larger and more expensive.
Wirewound resistors have a structure in which electric heating wire is wound around them. They are characterized by their ability to obtain large power at low resistance values and are used in resistors for current detection. There are several types of wire-wound resistors, depending on the type of case.
Wirewound resistors and other types of resistors are placed in a ceramic case and sealed with cement. They have excellent insulation and heat resistance from the structure. The disadvantage is that high frequency characteristics are not good because of the inductance component as with wire-wound resistors.
This type of resistor consists of wirewound resistors with metal cladding. Wirewound resistors are equipped with a metal cladding such as an aluminum case with heat dissipation fins to provide excellent resistance to environmental changes (heat resistance, physical properties, pressure resistance, and insulation).
This resistor is made by winding a resistance wire around a ceramic core and baking enamel over it to enhance heat resistance. Enameled resistors are suitable for handling large amounts of power due to their extremely high heat resistance. The disadvantage is that, like other resistors, it has an inductance component due to its wire-wound resistance, and its high-frequency characteristics are not good.
*Including some distributors, etc.
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Littlefuse was founded in 1927 and headquartered in the United States. Littlefuse is a diversified industrial technology manufacturing company with customers globally. Littlefuse has products segments which are electronic, industrial, and transportation. Electronic segment products include fuses and fuse accessories, positive temperature coefficient resettable fuses, polymer electrostatic discharge suppressors, and varistors. Transportation products include blade, resettable, and high-current and high-voltage fuses, as well as battery cable protectors; fuses, switches, relays, circuit breakers, and power distribution modules. The Industrial segment offerings include contactors, transformers, and temperature sensors for use in renewable energy and energy storage systems, electric vehicle infrastructure, HVAC systems.
Ohmite, established in 1925 and headquartered in Warrenville, Illinois, is a manufacturer of resistive products. Their product offerings incldue wirewound resistors, thick film resistors for high temperature and humidity resistance, and chip resistors for space-constrained applications. Additionally, they provide power resistors designed to handle high currents and voltages, suitable for power supplies and motors. Ohmite's diverse product range also includes custom-designed resistors tailored to meet specific customer requirements. These products find extensive application across various industries, including electronics, automotive, and industrial.
Bourns, Inc. is a family-owned company founded in 1947 and currently headquartered in Riverside, California. Bourns is a developer, manufacturer, and supplier of electronic components for several industries including automotive, industrial, instrumentation, medical, consumer, and portable electronics. Bourns operates in 4 market segments: automotive, circuit protection, power conversion, and sensing. The automotive segment produces sensors for almost every use in vehicles including steering, stability, fuel management, and temperature control. Power conversion segment products are used in renewable energy and automotive power. Sensing products are also used in heavy equipment, medical equipment, and welding equipment.
Japan Resistor Mrg. Co., Ltd develops, manufactures electronic devices, sensor compound apparatuses, hybrid integrated circuits, SMC products, sensors, potentiometers, heaters and resistors. JRM develops these for electronic devices, and industrial equipment, automotive, and medical equipment industries. JRM has acquired ISO 14001 certification and is expanding to support green power industries.
Akahane Electronics Corporation, established in 1960 and headquartered in Tokyo, Japan, is a manufacturer and supplier of resistors. Their diverse product range includes general purpose resistors used in electronic circuits, appliances, and equipment, precision resistors catering to applications requiring high accuracy like test and measurement equipment and medical devices, and thick film resistors suitable for demanding conditions such as automotive and industrial applications with high temperature and humidity resistance. Akahane Electronics' resistors find widespread use in electronics, automotive, and various industrial sectors, providing accurate solutions for diverse applications.
FRIZLEN, based in Kappelrodeck, Germany, is a manufacturer of electrical resistors and load banks. Established in 1923, the company produces a wide range of electrical resistors, including wire-wound resistors, braking resistors, load banks, and custom-designed resistors for specific applications. Their resistors are found in various industries, such as renewable energy, railway, industrial automation, and power generation. FRIZLEN also offer load banks that are used for testing and calibrating power sources like generators and batteries. The company's processes are ISO9001 Quality Management System certified.
General High Voltage Ind. Ltd, founded in Shropshire, the UK, in 1991 is a manufacturer of high voltage power supplies. The company's product portfolio includes Electron beam welding machines, Industrial X-ray PSUs, Capacitor charging PSUs, Laser PSUs, and Electrostatic precipitators. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. They also provide equipment repair, instrumentation system upgrades, and retrofits, and preventive maintenance.
KOA Corporation, established in 1940 in Minowa-machi, Japan, is a manufacturer of electronic components. The company provides an extensive product range including resistors, current sense shunt resistors, fuses, thermal sensors, and inductors. These quality components find applications in industries such as automotive, ecology, energy conservation, telecommunications, power supply units, and home appliances. Operating under the guiding principles of circulation, finite resources, harmony, and enrichment, it continues to provide sustainable electronic solutions to cater to the ever-changing demands of global industries.
Shanghai Eagtop Electronic Technology Inc., established in 2003, is a manufacturer of passive power electronics devices, based in Shanghai, China. The company’s main products include film capacitors, laminated busbars, composite superconducting flat heat pipes, resistors, and EMC filters. These products are used in many fields such as industrial drive, new energy, railway transportation, and power quality. It provides comprehensive solutions to the electronic passive device for worldwide customers with over 1,000 well-trained employees. It has also passed the certification of quality management system ISO9001:2008 and ISO/TS16949-20094.
Established in 1996, JDC is a manufacturer of resistors in China. Over the span of 16 years, they have over 800 employees. JDC's monthly output has crossed 5000 million pieces. Their products are sold in the United States, Germany, Britain, France, Brazil, Mexico, Colombia, South Korea, Singapore, Indonesia, Malaysia and other countries. Their range of patents includes 25 patented technologies, 13 national new products, and 12 national technologies. Their products consist of load banks, dummy load banks, UPS battery testing, load banks for generator testing, etc.
Established in 1985, Hong Kong Resistors Manufactory is a manufacturer of resistors in Hong Kong. With three factories located in mainland China, they produce SMD and through-hole resistors. They offer various electronic component supporting services. Their product range includes chip capacitors, electrolytic capacitors, metal film capacitors, and ceramic capacitors, all of which are produced in compliance with the EU RoHS environmental protection requirements. Their products are made by following SGS laboratory material analysis reports.
Viking Tech Corporation, established in 1997, is a Taiwanese manufacturer and supplier of electronic components, headquartered in Hukou, Hsinchu. The company’s product lineup comprises resistors, inductors, capacitors, and supercapacitors. These products, particularly the resistors, find applications in various industries. In the medical sector, these resistors are integrated into hospital equipment like X-ray machines, ultrasonography devices, portable defibrillators, and more. Similarly, in the automotive industry, resistors are integrated into electric vehicle (EV) engine control and body control systems, car navigation systems, and other applications. Additionally, the communication industry uses resistors for smartphones and similar devices.
Vaibhav Resistor Company, a company established in 2002, based in Mumbai, Maharashtra, India, is a manufacturer and supplier of wire wound resistors and related products. The company provides various products such as ceramic encased wire wound resistors, silicon radial wire wound resistors, mold resistors, and power resistors. These products are designed to be durable, energy efficient, and engineered to save money. The products are used for various applications such as power generation, distribution, and industrial automation. It also offers customer services that include technical support, catalog request, and customized services.
Xianyang Qinhua Specail Electronic Component Co.,Ltd, a company established in 2000, based in Xianyang, Shaanxi province, China, is a manufacturer and supplier of high voltage and high frequency resistors and related products. The company provides various products such as wire wound resistors, metal glaze film resistors, oxide film resistors, water cooled resistors, and ribbon wound resistors. The products are used for various applications such as high voltage testing, high voltage power supply and switches, high voltage soft starter, X-ray device, medical equipment, high frequency inverter, power plant, broadcasting transmitter as dummy load, and basic physics research.
Kusum Enterprises Pvt. Ltd is a manufacturer and supplier of film resistors started in 1983 and headquartered in New Delhi, India. The company offers carbon film, metal film, metal oxide, and link/jumper wire & wire wound resistors in various wattages ranging from 1/6 to 5W. It is an ISO 9001-certified company and its products are certified by various agencies like ERTL, LCSO (Defence), CACT, and ROHS. It caters to resistor requirements in many market segments including telecom, industrial and consumer electronics, auto Industries, security systems, and electronics & electric meters.
VTdrive TECHNOLOGIES, established in 2009 and based in Shenzhen City, China, is a manufacturer of industrial control systems. The company’s products include frequency inverters, soft starters, electrical vehicle controllers, brake units, and wire-wound brake resistors. The products are used in wood processing, printing, mining, injection molding, and cargo lifting industries. It has a quality management system that is ISO 9001 certified, meets IEC standards, and acquires CE approval. The company exports products to Thailand, Russia, England, South Africa, and Pakistan.