This section provides an overview for current sensing resistors as well as their applications and principles. Also, please take a look at the list of 17 current sensing resistor manufacturers and their company rankings.
Table of Contents
A current sense resistor is a device that detects current flow in an electrical circuit.
It employs a resistor with a low resistance value. When current passes through this resistor, a voltage drop occurs across it. This voltage drop is used to measure the current's magnitude.
Current flow through the resistor can cause changes in its resistance due to heat generation. Consequently, for high-precision measurements, resistors with stable resistance over temperature variations are preferred. Current sense resistors are utilized in various applications, including monitoring current in control circuits of electronic devices and electric vehicles, managing current in chargers and power supplies, and in overcurrent protection circuits.
*Including some distributors, etc.
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KOA Speer Electronics Inc. (KSE), founded in 1980 and currently a subsidiary of KOA Corporation, is a passive component manufacturer based in Bradford, Pennsylvania, United States. The company's portfolio includes thick film resistors, ranging from precision and surge current to wide terminal options. It also produces low-resistance current sense or shunt resistors and leaded resistors. Inductors, thermal sensors, and fuses are also part of the company’s product lineup. Certified with ISO 9001:2015 and IATF 16949:2016, the company serves various industries, such as automotive electronics, energy, and medical equipment. It also provides customized electronic data interchange (EDI) for customers’ data access.
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.
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.
CTS Corporation was founded in 1896 and is headquartered in Lisle, Illinois. CTS is a manufacturer and distributor of sensors, actuators, and various connectivity components to telecommunications infrastructure, information technology, and other high-speed applications such as the aerospace and medical markets. CTS operates in 3 primary market segments: Sense, Connect, and Move. The Sense market segment includes controls such as potentiometers, pedals, sensors, and switches. The Connect segment includes various types of resistors, capacitors, and frequency control products. The move segment includes piezoelectric move products, rotary actuators, and thermal products including ZIF PC board retainers and heatsinks.
Susumu CO., LTD., founded in Kyoto, Japan, in 1964 is a manufacturer of thin film products. The company's product portfolio includes thin film mount resisters, power choke coils, sample kits, and high frequency surface mount components. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. The company provides services such as Product Selection Guidance, Engineering Support, New Product Design and Development and Custom Manufacturing.
KWK Resistors India Private Limited is a power resistor manufacturer in India founded in 1979. The company is a joint Venture that was forged in 2013 between: KSI Group India, Widap Switzerland and Krah Group, Germany. The company offer solutions across the broad spectrum of the resistive requirements, from a fraction of a watt to hundreds of kilowatts, from SMDs to wire wounds, carbon film, precision, punched grids, metal Clad. The serves industries like defense, healthcare and more.
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.
Rhopoint Components Limited, founded in 1975 and located in Sussex County in southeast England, is a distributor of precision electronic components, including sensors and connectors. The company is an authorized partner of 28 manufacturers with headquarters in the UK, with several Divisions, including Rhopoint Nordic ApS and Rhopoint Energy. The company offers a wide range of electric components, including resistors, capacitors, transistors, diodes, and connectors, catering to the specific needs of diverse industries, including renewable energy, subsea, oil, and gas. It has cyber essentials certification along with BS EN ISO 9001 certification.
SAMSUNG ELECTRO-MECHANICS, established in 1973 and based in Suwon, South Korea, is a manufacturer and supplier of MLCCs (Multilayer Ceramic Capacitors). The company's product portfolio includes chip resistors, camera modules, and MLCCs with high bending strength. These products are used in various industries, including consumer electronics, automotive, and telecommunications. The company is ISO 9001, ISO 14001, and ISO 45001 certified for its quality, safety, and environmental management, with a global network in various countries including the United States, Singapore, and India.
Shenzhen Kawaxin Electronics Co. Ltd., established in 2001 and headquartered in Meizhou City. Guangdong, China, is an electronic component designer, manufacturer, and B2B supplier. The company's primary products include ceramic composition resistors, noise suppressor resistors, and damping resistors. It also produces SMD components, resistive load banks, and a range of electrical shunts. These components are used in numerous electronic and electric devices, including mobile phone chargers, microwaves, and street lighting. The company's services include the supply of sample products and custom component production.
Delta Electronics was founded in 1971 in Taipei, Taiwan. Delta Electronics is a global provider of power and thermal management solutions, serving power electronics, automation, and infrastructure. Delta’s power electronics division sells components such as inductors, power and system components such as industrial power supplies and external adapters, fans and thermal management such as DC brushless fans and motors, and automotive electronics. Automation includes industrial automation and building automation subdivisions. Infrastructure includes ICT infrastructure, energy infrastructure & industrial solutions, and display & visualization. Delta Electronics also provides solutions for data center, telecom energy, and EV charging.
Thin Film Technology (TFT)., established in, Baden-Württemberg, Germany in 1991 is a supplier engaged in the coating, printing, and drying laboratories worldwide. The company has a research center in the area of functional films with applications in future battery technologies, printed electronics, fuel cells, optical foils, functional coatings and printings. The company offers doctoral students and graduate students theoretical and experimental research work with the aim of understanding the film process technology.
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 | 44.4% |
Taiwan | 2 | 22.2% |
Japan | 1 | 11.1% |
India | 1 | 11.1% |
United Kingdom | 1 | 11.1% |