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This section provides an overview for shunt resistors as well as their applications and principles. Also, please take a look at the list of 20 shunt resistor manufacturers and their company rankings. Here are the top-ranked shunt resistor companies as of December, 2024: 1.Viking Tech Corporation, 2.Shivalik Bimetal Controls Ltd.
Table of Contents
Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer.
Engaged in equipment maintenance and engineering work at metal smelting plants. Moved to a chemical manufacturer in 2022. Engaging in similar tasks.
A shunt resistor is a component used to measure current in an electrical circuit.
The term "shunt" implies meanings such as "diverting" or "sidetracking," leading to its alternative name, "current shunt." This component is primarily used for current verification, battery level detection, and similar applications. It offers a reliable method for measuring electric current.
As current passes through the shunt resistor, its resistance value and the voltage drop across it are used to accurately determine the current. A notable feature of shunt resistors is their applicability in high-current situations.
In high-current circuits, where wires are often thick, traditional clamp-type current measurement methods can be challenging. Using a low-resistance shunt resistor, accurate and reliable current readings can be obtained. However, in high-current circuits, shunt resistors may generate significant heat, necessitating cooling solutions.
Shunt resistors are utilized in various electrical circuit applications, as outlined below:
Commonly, shunt resistors have a resistance value of 250Ω. The DC4-20mA current signal is a standard analog output signal, less affected by a voltage drop due to its nature as a current signal, hence its widespread use.
Conversely, DC1-5V voltage signals are often used as input signals. To convert a DC4-20mA signal to a DC1-5V voltage signal, a 250Ω resistor is connected in parallel to the input terminal.
In power electronic devices like inverters, current control and monitoring are essential. Shunt resistors are used for controlling and detecting overcurrent. In inverters, they manage the current on the DC side and regulate the output on the AC side.
Also, in industrial rectifiers, shunt resistors are commonly used for current measurement. These rectifiers supply direct current to trains, electrolytic cells, plating tanks, etc., where currents can reach tens of thousands of amperes. Shunt resistors capable of handling these high currents are therefore essential.
In electric vehicles, shunt resistors are used for current control, regulating power flow from the battery to the motor and limiting current during rapid charging to protect the battery.
The fundamental principle of shunt resistors is based on Ohm's Law, which states that the current (I) flowing through a resistor is proportional to the voltage (V) across it divided by its resistance (R).
Shunt resistors are typically connected in series with the circuit carrying the current to be measured. The same current flows through the shunt resistor. With its known resistance, the current can be calculated by measuring the voltage drop across it with instruments like a voltmeter.
There are various types of shunt resistors, including:
This common type uses a high-resistance metal wire, thin and wound into a coil, to achieve low resistance. It is versatile and suitable for a wide range of current values, from low to high.
Strip shunt resistors use a flat metal strip. Like wire-type resistors, they have low resistance and can handle high currents. They are particularly efficient in heat dissipation, enabling stable operation under high-load conditions.
Made with a metal film, these resistors involve a metal film deposited on a substrate to form the resistance pattern. Metal film shunt resistors are known for their high accuracy and stability, maintaining consistent performance even with temperature fluctuations.
*Including some distributors, etc.
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Riedon Inc., established in 1960 with headquarters in the USA and facilities in the USA, Europe, Asia, and Mexico, is a manufacturer of power, precision, surface-mount, high-temperature, and high-power resistors. The company's product line includes wirewound, thick film resistors, thin film resistors, and foil resistive components. Riedon Inc.'s products are used by a wide range of industries that include the aerospace, military, instrumentation, and consumer product markets. The company's components and resistors are found in mobile phones, power supplies, vehicles, and smart home appliances, among many others.
Caddock Electronics, Inc. is a manufacturer of precision resistors and resistor networks founded in 1965 and headquartered in Oregon, USA. Their product line consists of over 250 models, including high-voltage resistors, current sense resistors, chip resistors, high-frequency resistors, and RF resistors. They also offer load resistors, pulse resistors, and non-inductive power resistors, as well as custom resistors and resistor network solutions. Their products can be used in a wide range of electronic devices and systems to regulate the flow of electricity and protect against overloads, ensuring the safe operation of devices and 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.
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.
Token Electronics Industry Co., Ltd., established in Taiwan in 1983, is a manufacturer of electronic components and automatic production systems for commercial and industrial clients worldwide. The company produces a wide range of resistors, inductors, light sensors, microwave components, and RF components. Token Electronics Industry Co., Ltd. offers its clients a complete custom design, testing, and manufacturing service. The company's main export markets include Africa, Asia, Oceania, LATAM, and North America.
TY-OHM ELECTRONIC WORKS CO., LTD., established in 1958 with headquarters in Taiwan, is a manufacturer of carbon film and low-end wire-wound resistors. The company's product line includes SMD resistors, carbon film resistors, non-inductive resistors, pulse resistors, and wire-wound chip resistors. TY-OHM ELECTRONIC WORKS CO., LTD.'s products are used in mobile phones, notebooks, lighting, power supplies, vehicles, and smart home appliances, among many others. The company's clients include Dyson, Flexpower, Emerson, Osram, Philips, and Samsung.
Zhejiang Great Electrical Co. Ltd, established in 1995 and headquartered in Zhejiang, China, is a manufacturer of latching relays, shunt resistors, and current transformers. The company's products include over 50 series and have passed CQC, VDE, and TUV certifications. Its smart meter components enhance energy efficiency through real-time monitoring, and smart home solutions optimize energy consumption. It also supports the EV charging station sector, promotes clean energy transportation, and provides solar energy storage solutions to stabilize the energy supply. The company has earned the Zhejiang Science and Technology Enterprise and the Jiaxing New and High Technology Enterprise awards.
Yueqing Nqqk Electric Factory is a Chinese electrical products manufacturer that was established in Yueqing, Zhejiang Province in 2010. The company’s products include solid state relays, heavy duty connectors, shunt resistors, voltage regulators, and indicator lamps. It also offers digital meters for current, voltage, frequency, and power parameters, as well as terminals for connecting cables or wires to circuits and devices. The company’s products are commonly used in the renewable energy, industrial automation, and power transmission sectors.
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.
Shivalik Bimetal Controls Ltd, established in 1986 and headquartered in Delhi, India, is a manufacturer and supplier of bimetallic products. The company core offerings encompass a range of spectrum of bimetal strips and components used in temperature control devices, circuit breakers, and electrical switches. As a manufacturer, they play a pivotal role in providing dependable solutions for temperature sensing and control applications across industries such as appliances, automotive, and electronics. Shivalik Bimetal Controls Ltd's promise to quality and modernization underscores their position as a principal contributor to the global bimetallic controls market.
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.
Elektronische Bauelemente GmbH (EBG), founded in 1977 and currently a subsidiary of Miba AG, is a manufacturer headquartered in Kirchbach-Zerlach, Austria, specializing in non-inductive thick film resistors for electronics. The company’s product portfolio comprises power resistors and ultra-high power resistors, carbon disc resistors, high-voltage cylindrical resistors, high-voltage flat resistors, and high-precision metal film resistors. Additionally, the company offers voltage dividers and network resistors, and ultra-high precision resistors. Furthermore, the company offers custom individual parts, assemblies, and prototypes. These resistors find applications in various segments of power electronics, including electrification, energy transmission and distribution, as well as industrial machinery and control systems.
Alpha Electronics Corp., headquartered in Tokyo, Japan, has been a manufacturer of metal foil resistors since 1978. Its resistors are acclaimed for their precision, low temperature coefficient, and extended lifespan, catering to diverse applications like telecommunications, industrial automation, and medical devices. Offerings include an extensive range of resistors, including surface mount, wirewound, thin film, and SMD resistors, accommodating varying needs in industries such as consumer electronics and automotive. The company participates in a joint program with National Metrology Institute of Japan (NMIJ) on the further development of Bulk Metal Foil metrology standard resistors.
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.
Oswell E-Group Limited, founded in 2003 and headquartered in Shanghai, China, is a manufacturer and supplier of electronic, mechanical, and plastic parts for energy devices and EV BMS. The company products include current transformers, miniature transformers, LCD displays, and more. These components find applications in electronic meters, energy measurement, and protection equipment. The company possesses technical capabilities, including automated processes such as precision automatic winding, precise resistance adjustment, and efficient stamping procedures.
Ranking as of December 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | Viking Tech Corporation |
60.0%
|
2 | Shivalik Bimetal Controls Ltd |
40.0%
|
Derivation Method
The ranking is calculated based on the click share within the shunt resistor page as of December 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 | 4 | 23.5% |
Japan | 4 | 23.5% |
China | 4 | 23.5% |
Taiwan | 3 | 17.6% |
India | 1 | 5.9% |
Austria | 1 | 5.9% |
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