10 Positive Temperature Coefficient (PTC) Thermistor Manufacturers in 2024
This section provides an overview for positive temperature coefficient (ptc) thermistors as well as their applications and principles. Also, please take a look at the list of 10 positive temperature coefficient (ptc) thermistor manufacturers and their company rankings. Here are the top-ranked positive temperature coefficient (ptc) thermistor companies as of November, 2024: 1.Vishay Intertechnology, Inc.,, 2.Littelfuse, 3.Pelonis Technologies, Inc..
Table of Contents
- What Is a Positive Temperature Coefficient (PTC) Thermistor?
- List of 10 Positive Temperature Coefficient (PTC) Thermistor Manufacturers
- List of 14 Positive Temperature Coefficient (PTC) Thermistor Products
- Global Distribution of Positive Temperature Coefficient (PTC) Thermistor Manufacturers by Country
Categories Related to Positive Temperature Coefficient (PTC) Thermistors
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.
What Is a Positive Temperature Coefficient (PTC) Thermistor?
A PTC thermistor is an electronic component whose resistance value increases sharply at a certain temperature.
PTC stands for positive temperature coefficient, meaning that there is a positive correlation between temperature and resistance. Thermistor is derived from the term "Thermal Sensitive Resistor". A thermistor is a component that can measure temperature from the difference in electrical resistance when a resistive element is brought into contact with the object to be measured. It is characterized by the use of a metal oxide semiconductor as the resistive element.
An overcurrent protection device using a positive temperature coefficient (PTC) thermistor is also called a resettable fuse. Tube and blade fuses use alloy elements that need to be replaced once they blow, so the principle is different from that of common fuses.
When an excessive current flows in a circuit, a resettable fuse limits the current value by causing the positive temperature coefficient (PTC) thermistor to become hotter and its resistance to increase. When the cause of the excessive current is removed, the positive temperature coefficient (PTC) thermistor decreases and its resistance becomes lower. Therefore, it is used as a resettable fuse.
Uses of Positive Temperature Coefficient (PTC) Thermistors
PTC positive temperature coefficients (PTC) thermistors are used in electronic circuit boards and a wide range of other applications, from home appliances to industrial applications. The following are examples of positive temperature coefficient (PTC) thermistor applications:
- Overcurrent and overload protection for smartphones, etc.
- Overload protection for small motors
- Electric carpets and heaters
- Overload protection for motors and power semiconductors
PTC positive temperature coefficient (PTC) thermistors have a low resistance value when the temperature is low, but when overheated due to excessive current, the resistance value increases rapidly. This mechanism allows them to be used for overcurrent protection in electrical circuits. Circuits in which PTC thermistors are used include heater circuits and electronic communication devices.
Protection against overheating must also be considered when using power semiconductors and motors. This is where positive temperature coefficients (PTC) thermistors are used. To protect against overheating, a positive temperature coefficient (PTC) thermistor is used by physically thermally coupling the PTC thermistor to a heat sink or motor winding for heat removal.
The positive temperature coefficient (PTC) thermistor is used to detect overheating by increasing its resistance, and the circuit is configured to stop operation or shut off the power supply.
Principle of Positive Temperature Coefficient (PTC) Thermistors
PTC thermistors have three major characteristics:
1. Resistance Temperature Characteristics
The resistance value is almost constant from room temperature to the Curie point (temperature at which the resistance value is about twice that of room temperature), and increases rapidly after the Curie point. This property allows the device to detect overheating of an electronic circuit quickly and limits the circuit current, thereby preventing failure of electronic components.
2. Static Characteristics (Voltage-Current Characteristics)
Until the Curie point is exceeded, the current rises in proportion to the rise in voltage. Once the Curie point is exceeded, the resistance of the thermistor itself increases, and the current value decreases. In other words, a constant power is maintained. The voltage-current characteristic is characterized by a mountain-like graph.
3. Dynamic Characteristics (Current-Time Characteristics)
The current-time characteristic of a PTC thermistor is characterized by the fact that the current value decreases over time. This characteristic allows a large current to flow immediately after the power is turned on, and is used for motor startup and other applications.
Types of Positive Temperature Coefficient (PTC) Thermistors
PTC thermistors can be classified into two types: polymer-based and ceramic-based.
1. Polymer Type
Polymer-based PTC thermistors are manufactured by mixing conductive particles with polymer materials, such as polyethylene. Carbon black and nickel are used as conductive particles.
They are also known by the acronym PPTC. Resettable fuses are also called poly switches, but the name is derived from the polymer. The positive temperature coefficient (PTC) thermistor is used only for overcurrent protection.
2. Ceramic-Based
PTC thermistors are positive temperature coefficient (PTC) thermistors made of ceramic with a small amount of rare earth elements added to barium titanate. Curie temperature can be adjusted by adjusting the amount and type of additives. They are used not only for overcurrent protection but also for demagnetization circuits and self-regulating heating elements.
List of 10 Positive Temperature Coefficient (PTC) Thermistor Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- Germany
- Japan
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Vishay Intertechnology, Inc.,
THERMISTORS - PTC THERMISTORS
Manufacturer Overview
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.
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Littelfuse
NTC and PTC Thermistors
Manufacturer Overview
Littelfuse founded in 1927, is an industrial manufacturing company empowering a sustainable, connected, and safer world, headquartered in Chicago, Illinois, United States. The company's product portfolio includes the solutions for both individual and entire systems, as a global manufacturer of technologies in circuit protection, power control, and sensing. Across more than 20 countries, and with approximately 18,000 global associates, partner with customers to design and deliver advanced solutions. Serving over 100,000 end customers, their products are found in industrial, transportation, and electronics end markets.
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Pelonis Technologies, Inc.
Positive Temperature Coefficient Thermistors
Company Overview
Pelonis Technologies, Inc. was founded in the 1990s in Exton, Pennsylvania. Pelonis technologies is a manufacturer and distributor of air movement technologies and specialty heating products for commercial and industrial use. Pelonis Technologies is ISO 9000 and ISO 14000 certified. Pelonis Technologies has 3 main standard product segments in cooling, heating, and motors & motion control. Cooling products include fans, blowers, micro cooling, and automotive fans & blowers. Heating products include PTC heaters, temperature controllers, and immersion heaters. Motors & motion control include micro, planetary, AC, and medical micro motors. Custom solutions include AC and DC fans and blowers.
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Thermik Gerätebau GmbH
PTC thermistors
Manufacturer Overview
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.
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KOA Corporation
Thermistors
Manufacturer Overview
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.
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NICHICON
Positive Thermistors “Posi-R ”
Manufacturer Overview
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.
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Murata Manufacturing Co., Ltd.
PTC Thermistors (POSISTOR)
Manufacturer Overview
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.
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Gesellschaft für Elektro-Physikalische Messgeräte mbH
PTC thermistors
Manufacturer Overview
Gesellschaft für Elektro-Physikalische Messgeräte mbH, established in 1955 and headquartered in Hessen, Germany, is a manufacturer of industrial measuring and sensor technology solutions. The company specializes in customized sensor solutions, offering various temperature sensors such as slot resistance thermometers, screw-in thermometers, and cable sensors. It also provides electric band heaters, speed sensors, and oil level gauges. These products find applications in railway technology, wind power, and general industry, serving critical functions such as temperature monitoring in bearings, winding heads, and gears. The company’s certified sensors are integral components in high-speed trains, heavy-duty mechanical engineering, and dam infrastructure.
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Focus Sensing and Control Technology Co., LTD
PTC Temperature Sensor
Manufacturer Overview
Focus Sensing and Control Technology Co. Ltd is a manufacturer of thermal-sensitive sensors and components established in 2010 in Hefei, Anhui, China. The company’s product lineup includes temperature and humidity transducers for measuring and converting logged values into electrical signals, temperature sensors such as thermocouples and thermistors, and temperature controllers for displaying or regulating temperature levels in a space. The company is CE- and RoHS-certified, and mainly serves clients in the industrial processing sector.
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Positive Temperature Coefficient (PTC) Thermistor Manufacturer Ranking
*Including some distributors, etc.Ranking as of November 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Vishay Intertechnology, Inc., |
13.5%
|
| 2 | Littelfuse |
12.3%
|
| 3 | Pelonis Technologies, Inc. |
12.2%
|
| 4 | Murata Manufacturing Co., Ltd. |
12.0%
|
| 5 | Gesellschaft für Elektro-Physikalische Messgeräte mbH |
11.9%
|
| 6 | Thermik Gerätebau GmbH |
10.7%
|
| 7 | Focus Sensing and Control Technology Co., LTD |
10.0%
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| 8 | NICHICON |
9.3%
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| 9 | MEGATRON Elektronik GmbH & Co. KG |
6.8%
|
| 10 | KOA Corporation |
1.3%
|
Derivation Method
The ranking is calculated based on the click share within the positive temperature coefficient (ptc) thermistor 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
- Murata Manufacturing Co., Ltd.: 77,581
- NICHICON: 5,408
- KOA Corporation: 1,622
Newly Established Company
- Thermik Gerätebau GmbH: 1968 (56 years ago)
- Murata Manufacturing Co., Ltd.: 1944 (80 years ago)
- Littelfuse: 1927 (97 years ago)
Company with a History
- Littelfuse: 1927 (97 years ago)
- Murata Manufacturing Co., Ltd.: 1944 (80 years ago)
- Thermik Gerätebau GmbH: 1968 (56 years ago)
Positive Temperature Coefficient (PTC) Thermistor Manufacturers in United States
*Including some distributors, etc.
Global Distribution of Positive Temperature Coefficient (PTC) Thermistor Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
United States of America
|
3 | 37.5% |
Japan
|
3 | 37.5% |
Germany
|
2 | 25.0% |
List of Positive Temperature Coefficient (PTC) Thermistor Products
14 products are listed.
Maximum Technology Co., Ltd.
PTC Thermista Series for preventing overcurrent with fast response to overcurrent
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Used for circuit protection applications such as motors. When the PTC Thermista reaches a constant temperature (curly temperature), the resistance...
Maximum Technology Co., Ltd.
Small and lightweight PTC heater product lithium -ion battery heater
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■ Lithium ion battery and outside temperature Lithium -ion batteries tend to increase internal low resistance under low temperature and decrease ca...
Maximum Technology Co., Ltd.
Energy saving, easy control, safety PTC heater products
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The PTC heater is a heated part that uses the characteristics of PTC Thumista. PTC Thermista is self -heated by flowing electricity. If you rise t...
