This section provides an overview for thermistor sensors as well as their applications and principles. Also, please take a look at the list of 41 thermistor sensor manufacturers and their company rankings. Here are the top-ranked thermistor sensor companies as of November, 2024: 1.Amphenol Thermometrics, Inc., 2.Temperature Specialists, Inc., 3.Thermik Gerätebau GmbH.
Table of Contents
A thermistor sensor, short for "thermally sensitive resistor," is an electronic component that exhibits a significant change in resistance in response to temperature variations.
These sensors enable temperature measurement by monitoring the resistance of the component. Thermistor sensors are manufactured using a mixture of various metals and can operate within a temperature range of approximately -50°C to 150°C.
Due to their affordability, temperature-sensing capabilities, compact size, and durability, thermistor sensors find applications in a wide array of fields:
1. Medical Equipment: Thermistor sensors are used in medical devices for temperature monitoring.
2. Automobiles: They play a crucial role in measuring the temperature of the engine and outside air, ensuring optimal engine combustion and performance.
3. Office Automation (OA) Equipment: Thermistor sensors are employed in various office equipment, including printers and copiers, for temperature control and monitoring.
4. Housing Equipment: These sensors are used in household appliances like water heaters and cooking appliances to measure and control temperature.
5. Industrial Equipment: Thermistor sensors contribute to temperature control in industrial machinery and equipment.
6. **Information Equipment:** They are used in data centers and servers for temperature monitoring and control.
7. General Household Appliances: Thermistor sensors can be found in various household appliances for temperature measurement and control.
For example, air conditioning systems use these sensors in both indoor and outdoor units to maintain optimal temperature conditions. In automobiles, they help control engine temperature and monitor external air temperature. In water heaters, they regulate the water temperature coming out of faucets.
Thermistors are made from a mixture of materials, with different types available:
- NTC (Negative Temperature Coefficient) Thermistors: Their resistance decreases as temperature increases, and they are commonly used for temperature measurement and compensation circuits.
- PTC (Positive Temperature Coefficient) Thermistors: These thermistors are used to protect devices from overcurrents rather than for temperature measurement. Their resistance value increases significantly near a specific temperature as temperature rises.
- CTR (Current-Time Resistor) Thermistors: Similar to NTC thermistors, their resistance decreases as temperature rises, but their resistance value decreases significantly at higher temperatures.
When using thermistor sensors in electrical circuits, they are typically integrated into the circuit with a constant supply voltage and fixed resistors. As the resistance of thermistor sensors changes with temperature, variations in temperature lead to changes in current flow and voltage across the resistor.
These voltage variations can be read by microcontrollers or other devices with analog-to-digital converter (ADC) capabilities. The combination of thermistor sensors and peripheral circuits often involves connecting a pull-down resistor of 1 kilo-ohm or 10 kilo-ohm to a constant voltage source (e.g., 5 V DC or 3.3 V DC) or connecting a pull-down resistor between the thermistor sensor and ground (GND).
It's essential to choose appropriate resistor values to prevent excessive heat generation due to increased current flow through the resistor, which can result in inaccurate measurements. In some cases, a known resistor is combined with the thermistor sensor to measure resistance values accurately.
*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.
DEXTER MAGNETIC TECHNOLOGIES, a renowned manufacturer of magnetic solutions, was established in 1951 in the United States. The company excels in producing an array of magnetic products, including precision magnetic assemblies and custom magnets. With a calling to innovation, DEXTER MAGNETIC TECHNOLOGIES has maintained a pioneering stance in magnetic technology advancement. Their expertise lies in offering cutting-edge magnetic solutions across industries like aerospace, medical, and automotive, resulting in elevated performance and efficiency. DEXTER MAGNETIC TECHNOLOGIES shines in devising tailored magnetic answers to address distinctive challenges. Notably, their precision magnetic assemblies play a crucial role in medical imaging equipment, ensuring precise diagnosis.
Honeywell International Inc. was founded in 1885 and headquartered in Charlotte, North Carolina. Honeywell is a diversified technology and manufacturing company to global customers in many industries such as aerospace, building technologies, performance materials, manufacturing, and safety. Honeywell produces hardware and software solutions for each industry it serves. In building technologies, Honeywell designs access controls, electrical and wiring, fire life safety, and employee training services. In aerospace, Honeywell designs cockpit systems and displays, engines, cabin management and cleaning, and health and usage monitoring.
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.
Amphenol Advanced Sensors, established in 1999 and headquartered in St. Marys, Pennsylvania, is a manufacturer and supplier of sensing technologies. Their diverse product portfolio includes temperature sensors like RTDs, thermocouples, and thermistors, serving applications in industrial automation, medical devices, and environmental monitoring. Furthermore, they offer a wide range of pressure sensors, such as absolute pressure, differential pressure, and vacuum sensors, utilized in industrial automation, medical devices, and automotive industries. They also provide an extensive array of air quality sensors, including CO2, VOC, and particulate sensors, serving applications in environmental monitoring, building automation, and healthcare sectors.
Nanmac Corporation, founded in 1956, is a veteran held designer and manufacturer of temperature sensors and measurement solutions, headquartered in North America. The company specializes in designing and manufacturing high-precision temperature sensors and data acquisition systems for various industries, including aerospace, automotive, processing, medical, and industrial manufacturing. Nanmac's commitment to continuous improvement, and customer satisfaction has led to numerous registration such as ISO 9001:2015/AS 9100D and ISO/IEC 17025:2017 certifications and industry partnerships.
Thermalogic Corp. is a built-to-order electronic sensor and control manufacturer that was established in 1971. The company is headquartered in a Hudson, Massachusetts facility, where they handle all services in-house. They service various local and international customers in industries, such as medical, military, industrial, food, and transportation. The company’s sensors are used for controlling temperature, humidity, and processes for OEMs (original equipment manufacturers) and volume users. Common products that apply their sensors and controls are HVAC, packaging equipment, food processing, semiconductors, and commercial incubators.
Temperature Specialists, Inc., founded in 1977, is a custom manufacturer of temperature detectors, thermocouples, molded handle probes, thermowell and thermistors built to specifications. The detectors include platinum wire wound, transition, platinum thin film and connector, sheath, fast response hollow element, and bayonet-style resistance temperature detectors. The St. Francis, MN company serves home appliances, automotive, medical, industrial equipment, and electronics. The company also offers thermocouple assemblies, molding of plastic parts, miniature welding, and custom Hot Wire Anemometer manufacture.
Tempco is based in Wood Dale, Illinois and has been in business since 1972. Tempco is a manufacturer of many types of heating elements and thermocouples with design variations. Tempco is ISO 9001:2015 certified. Temco’s electric heaters and elements include band heaters, cartridge heaters, cast-in heaters, ceramic fiber heaters, coil and cable heaters, drum heaters, enclosure heaters, flexible heaters, heat trace cable, heated hose and tubing, infrared heaters, process heaters, shroud systems, strip heaters, tank heaters, and tubular heaters. Tempco also sells various application accessories and wiring accessories.
Smith Systems, Inc. was founded in the 1980s and is headquartered in Brevard North Carolina. The company is a manufacturer of speed sensors, motion sensors, temperature sensors, as well as instrumentation and cable harnessing devices for industries such as aerospace, military, and rail industries. The company also offers custom manufactured products, per customer demands, both for quality control purposes and for OEM qualification. Potential design configurations include capabilities unique to railroad or aerospace applications including track sensing, angle sensing, and tolerance to extreme conditions.
Selco Products was founded in 1958 and is headquartered in Reno, Nevada. The ISO 9001:2008-certified company is a global manufacturer of customized electronic components. The company serves several markets including medical, HVAC, electronics, and aerospace OEMs and end-user companies, leveraging JIT delivery, Kansan, and engineering support. Electronics offerings include thermistors, temperature controls, panel instruments, and signal converters. Non-electronics include buttons, knobs, and other accessories used in digital and analog electronics controls.
Omron Automation was originally established in 1933. Omron Automation is a producer and manufacturer for industrial automation solutions including robotics, sensing, motion, logic, and safety. Industries include automotive automation, electric vehicle manufacturing, food and beverage packaging, semiconductor and manufacturing electronics, life sciences automation, logistics & warehouse automation, machine tool, oil and gas, water and wastewater, entertainment, security and detention, and other industries. Some of Omron Automation’s product categories include machine automated controllers, RFID solutions, safety laser scanners, safety outputs, smart cameras, vision sensors, machine vision software, servo systems, articulated robots, parallel robots, SCARA robots, photoelectric sensors, and rotary encoders along with many software-based solutions.
Micro Quality Calibration Inc MQC) was founded in 1978 as a technology-oriented calibration, repair, testing, and first article inspection facility for precision measurement test equipment. MCQ follows in strict compliance of ISO-9000 (series 1, 2, 3, and 4) specifications. MCQ offers services in calibration, inspection testing, repair, database management, and analytics. Calibration services are often provided for automotive, electrical components, aerospace, and secure communications, for which MCQ is ISO 17025 accredited.
Scully Signal Company is a manufacturer and supplier of overfill prevention, static ground verification, and liquid transfer equipment established in 1936 and headquartered in Wilmington, Massachusetts, USA with additional branches in Belgium, India, and the United Kingdom. The company’s product portfolio includes vehicle identification systems, flow control & actuators, fill alarms & level gauges, static bond & ground proving equipment, and overfill prevention controllers, sensors, sockets, plugs & cables, and testers. It offers products used in petroleum, aviation, chemical, government & military, and lube & heating oil delivery.
Ametherm, Inc., established in 1994 is a manufacturer and supplier of inrush current limiting solutions headquartered in Carson City, Nevada, U.S.A. Its product portfolio is segmented into inrush current limiters and sensing thermistors such as Disc & chip NTC thermistors, thermistor probes, surface mount thermistors, NTC probes, and end-band surface mount thermistors. The company is ISO:9001:2015 certified, and it offers power thermistors that meet the UL and CSA standards. It offers products used in various electrical devices in residential & commercial, industrial, healthcare, renewable energy, and electric vehicle applications.
NIC Components Corp., and Nippon Industries Co. Ltd. have collaborated for over 37 years to design and manufacture passive components, including capacitors, resistors, and magnetics. Established in the USA in 1982, NIC has expanded its business to the custom speciality that meets the demands of today’s emerging and latest technology. Their regional offices can be found in Canada, Malaysia, India, Mexico, China, etc. All of their products are built with more features and are certified with different ISO certifications. They also assist their customers in component selection through live support.
Hi-Watt Inc. is a supplier of industrial thermal & process components and heating & temperature control systems established in 1979 and headquartered in Clinton Township, Michigan. The company’s product portfolio includes industrial temperature sensors, temperature & process controls, and industrial electric heaters such as immersion, industrial infrared, cartridge, band, and strip heaters from brands such as Watlow, Eurotherm Distributor, Chromalox, Tempco, and Tutco. It supplies its process heating products, industrial electric heaters, and systems to many industries including injection mold tooling, plastic & chemical processing, defense & aerospace, OEM thermal processing, and research & development.
DataNab LLC is a wholesale trader and distributor of sensors and automation devices established in 2003 and headquartered in Erwin, Tennessee, United States. The company’s products including IP-enabled solutions, Modbus TCP & Modbus RTU devices, 1-wire sensors, Modbus-enabled sensors, and 10K thermistors are used for temperature, humidity & CO2 sensing, building automation, remote monitoring, and IP-audio distribution in HVAC, smart homes, industrial, and power applications. It also offers Barix IP-Audio products such as instreamers & encoders, exstreamers & decoders, annuncicoms & enc/decoders, IPAM - IP audio modules, and Barix IP-Audio accessories.
Sen Tech Co., Ltd. a company established in 1994 and headquartered in Taichung City, Taiwan, is a manufacturer and supplier of NTC thermistors and photoconductive cell CdS. The company specializes in providing electronic components and devices for a wide range of industries. The company’s product portfolio includes interchangeable NTC thermistors, glass bead NTC thermistors, switches, and other electronic components. Their products are utilized in various applications, such as industrial automation, room light control, industrial controls, and consumer electronics. The company also provides customer services such as technical support, personalized assistance, and customized services.
Shenzhen Sunlord Electronics Co., Ltd., established in 2000 with headquarters in Shenzhen, China, is a manufacturer of electronic components. The company's product line includes EMC components, RF components, coils, inductors, and multilayer varistors. These components make up magnetic devices, microwave devices, and sensitive devices, which are widely used in communication devices, consumer electronics, automotive electronics, new energy, and networking equipment. The company serves industries including agriculture, automotive, database infrastructure, mobile communications, and solar power.
Thinking Electronic Industrial Co., Ltd., established in 1979 with headquarters in Taiwan, is a manufacturer of circuit protection components for over-voltage protection, over-temperature protection, and over-current protection. The company's product line includes NTC thermistors, ceramic PTC thermistors, polymer PTC resettable fuses, temperature sensors, and gas discharge tubes. Thinking Electronic Industrial Co., Ltd.'s products are used in EV batteries, surge protection devices for 5G mobile infrastructure, kitchen appliances, and photovoltaic systems, among many others. The company also provides custom product design and development services.
Shibaura Electronics is a manufacturer and supplier of electronic components based in Saitama, Japan. Established in 1981, the company designs and produces various electronic components, including capacitors, inductors, transformers, and filters. These components are used in various industries and applications and provide stable and efficient operation. The company's most popular products are its ceramic, film, and aluminum electrolytic capacitors, which are used for energy storage and filtering applications in electronic circuits.
Hanna Instruments Inc. is an analytical and scientific instrument manufacturer, founded in Italy in 1978 and headquartered in Woonsocket, Rhode Island, United States. Certified with ISO 9001:2015 and ISO 14001:2015, the company offers a range of instruments, including photometers, refractometers, and thermometers. It also produces titrators, turbidimeters, and various process controllers, such as process colorimetric analyzers (PCAs). Supported by four manufacturing facilities, three research and development centers, and 47 sales offices worldwide, the company serves global customers across various industries, including agriculture, food and beverage, and wastewater treatment.
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.
NICHICON, founded in Kyoto, Japan, in 1950, is a manufacturer of electronic components such as Aluminum electrolytic capacitors and Plastic film capacitors. The company's product portfolio includes Small Li-Ion Rechargeable Batteries, Household energy storage systems, Public and industrial power storage systems, Switching power supplies, and Power sources for medical accelerators. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. NICHICON also offers various services, including product selection, installation, preventative maintenance, troubleshooting, and repair.
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.
Thermik Corporation was founded in 1968 in Pforzheim, Germany opened its American subsidiary in 1984 in New Bern, North Carolina. The company is a manufacturer of thermal regulation products used in electronics and appliance manufacturing industries by companies worldwide. The company’s two primary product lines are thermal protectors and thermistors. Thermal protectors limit the maximum temperature reached in devices while thermistors, also referred to as motor protector sensors or PTCs, work by increasing resistance at certain temperatures. They are commonly used in fire detectors, ovens, refrigerators, and in the aviation industry.
Passive System Alliance Properity Dielectric Co. Ltd. is a passive component manufacturer established in 1990 and headquartered in Yang-Mei, TaoYuan, Taiwan. In 2005, the company entered into a strategic alliance with WTC, and in 2008, it formally merged with Hongdian Electronics, expanding its sales scope from dielectric ceramic powder, semiconducting ceramic capacitor tiles, multilayer ceramic capacitors, and chip resistors to inductors. The company is capable of meeting market demands by initiating material research and development and integrating and developing electronic components as required by customers.
The Company operates diverse businesses, ranging from nonferrous metals and other fundamental materials to cemented cardide tools/metalworking solutions, the manufacturing of semiconductor-related and electronic components/materials, resource recycling, and renewable energy power generation. In each business, the Company holds the No.1 position in production volume, sales volume, etc.
Wattco was founded in 1972 and is headquartered in Lachine, Quebec. Wattco is a manufacturer of electric heating products for use in many utilities including oil and gas, renewable energy, HVAC systems, as well as others. Wattco products include immersion, circulation, inline, flanged, screw plug, pipe, over the side, industrial bore, tubular, finned tubular, strip, finned strip, cartridge, band, silicone rubber, open coil element, duct, finned tubular duct heaters, infrared radiant heaters, as well as other combinations of heaters and control panels.
Thermal Solutions LLC is headquartered in Lancaster, Pennsylvania. The company is a manufacturer of water heating equipment and boiler control systems used across commercial and industrial applications for customers across the United States through an independent sales network. The company’s 3 product lines include both condensing and non-condensing ultra high-efficiency hot water boilers & heaters and packaged systems & accessories. Condensing heaters range in capacity from 400,000 BTU/hour to 1 million BTU/H inputs at 97% efficiency. Non-condensing heaters maintain 87% efficiency at noise levels below 50 decibels.
Founded in 1890 in Missouri, Emerson Electric Co., is a technology and engineering company that provides various solutions for customers in industrial, commercial, and consumer markets globally. Business segments include automation solutions, AspenTech, and commercial & residential solutions segments. The Automation Solutions segment offers measurement and analytical instrumentation, industrial valves and equipment, and process control software and systems. The AspenTech segment provides asset optimization software for enhancing performance through a combination of modeling, simulation, and optimization capabilities. The Commercial & Residential Solutions segment offers residential and commercial HVAC products, system protector and flow control devices, and IoT thermostats.
Balluff was founded in 1921 and is headquartered in Neuhausen, near Stuttgart, Germany. Balluff is a manufacturer of sensor and automation solutions for customers globally. Balluff serves many industries including life sciences, semiconductors, metalworking, fluid power, and mobile equipment. Balluff’s product line consists of sensors and connectivity components, accessories, complete systems, and software. Balluff offers services to assist customers across the range of finding solutions, deploying solutions, training, as well as support.
Acrolab Ltd was founded in 1948 in Windsor, Ontario as Accurate Laboratories where it still presides. The ISO 9001:2015-certified company provides thermal systems products and services for general manufacturing, electronics, automotive, and rubber industries among others. The company’s products include heat pipes, thermocouples, control panels, and other thermal distribution tools. The company provides thermal engineering, thermal simulation, and research & development services for customers. Thermal engineering provides concept development support. Simulations provide analysis to assist in design choice and operational strategies. The research and development group creates new designs for customers.
Sowparnika Thermistors and Hybrids Pvt. Ltd., founded in 2007 and headquartered in Thiruvananthapuram, Kerala, India, is a manufacturer and supplier of thermistors and thermistor products. The company's product range includes an array of electronic NTC thermistors, inrush current limiters, temperature compensators, AC sensors, and bimetal thermostats. Catering to industries such as automobile, UPS/inverter, and medical equipment, the company offers tailored services including customization, design, and prototyping. With an ISO 9001:2008 certification, it is devoted to delivering superior thermistor products and services that align with customer requirements.
SEMITEC Corporation is a manufacturer and supplier of electronic components such as sensors, surge absorbers, and current regulators established in 1958 and headquartered in Sumida-ku, Tokyo, Japan. The company offers semiconductor devices such as Zenamic, VRDs (Voltage Regulating Diode), CRDs (Current Regulating Diode), & power thermistors, and sensors such as thermopiles, and temperature, IR, tactile, micro-pressure, and NC sensors. The company offers products used in medical devices, home appliances, office equipment, consumer electronics, and automotive.
MOD-TRONIC Instruments Limited was established in 1972 in Brampton, Ontario, Canada. MTis a distributor of industrial sensors, transducers, heaters, controls, and instrumentation, primarily made in the USA as well as Japan, Switzerland, and Germany. MT’s customers are primarily in the aerospace, building automation, manufacturing, medical, military, oil and gas, and water treatment industries but also serves individuals. MT offers an above industry standard 5-year warranty and technical support on every product sold.
Interworld Electronics & Computer Industries Inc was founded in 1978 and headquartered in Point Roberts, Washington. The company is a distributor of electronic diagnostics and measurement tools. The company has other offices in Canada and international support available. The company also offers a variety of software for construction as well as for PC-based tools such as automotive oscilloscopes. The company offers a variety of digitizers, automotive diagnostics tools, high-voltage products, data acquisition products, and others.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | Amphenol Thermometrics, Inc. |
5.4%
|
2 | Temperature Specialists, Inc. |
4.7%
|
3 | Thermik Gerätebau GmbH |
4.7%
|
4 | Scully Signal Company |
4.1%
|
5 | Nanmac Corporation |
4.1%
|
6 | Micro Quality Calibration, Inc. |
4.1%
|
7 | Condex Wattco Inc |
4.1%
|
8 | Thermalogic Corporation |
4.1%
|
9 | Electronic Controls Corp. (ECC), Div. of Selco Products |
4.1%
|
10 | Honeywell International Inc |
4.1%
|
Derivation Method
The ranking is calculated based on the click share within the thermistor sensor 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 | 18 | 60.0% |
Japan | 6 | 20.0% |
Taiwan | 2 | 6.7% |
China | 1 | 3.3% |
Germany | 1 | 3.3% |
India | 1 | 3.3% |
Canada | 1 | 3.3% |