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This section provides an overview for chip fuses as well as their applications and principles. Also, please take a look at the list of 17 chip fuse manufacturers and their company rankings. Here are the top-ranked chip fuse companies as of May, 2025: 1.YAGEO, 2.PICO Inc., 3.Panasonic Corporation of North America.
Table of Contents
A Chip Fuse is a type of chip component mounted on a circuit board.
It has the role of preventing accidents caused by melting even if an overcurrent flows and generates heat due to a circuit malfunction. The structure is almost the same as that of a chip resistor, but instead of a resistive element, a metal with a low melting point is used as the fusing element.
Chip Fuses are mounted on a circuit board. Examples of specific applications include battery-powered communication devices such as smartphones and cellular phones, portable-type audio equipment, and electronic circuits in cameras and other photographic equipment.
The purpose is to prevent accidents in the event of an overcurrent due to a malfunction of an element on the circuit board. However, like ordinary fuses, they are not intended for use in power circuits to which commercial power is connected.
This is because chip fuses are small in size, do not provide sufficient insulation distance, and cannot carry a large current. Chip fuses are intended only for the protection of certain circuits and boards.
A Chip Fuse is a single-layer or multi-layer ceramic substrate with a fusing element that conducts electric current. The fusing element is based on a relatively high conductivity material such as copper, gold, or copper-tin or silver-palladium alloys, and therefore the fuse resistance is small.
The fusing element is also made of laser-trimmed thick film deposits or etched metal layers to achieve the required characteristics. In other words, the shape and thickness are set so that the fusing element melts after a certain period of time under overload, when the current flowing through the Chip Fuse exceeds its rated value.
In addition, the fusing element must be protected from various ambient conditions in order for the Chip Fuse to operate reliably.
Multilayer Chip Fuses are surrounded by a ceramic substrate layer, so the fusing element does not need a special protective coating.
On the other hand, in single-layer Chip Fuses, the elements are usually coated with lacquer or epoxy as a protective coating to prevent changes in their characteristics.
In addition, there are various types of fuses, such as fast-acting types and inrush-resistant types that do not easily fuse with rush currents, and each type has different fusing characteristics.
If the fusing characteristics are not taken into consideration, the fuse may blow even during normal operation, while at the same time, circuit protection may not function in the event of an emergency, etc. Therefore, it is important to select a fuse with optimal fusing characteristics for the circuit in use.
If the current flowing through the circuit is constant, fuse selection is easy. In the event of a short circuit or other abnormal condition, the current is much higher than normal, so there is no problem if you select a fuse that will blow immediately when the operating current of the circuit is exceeded. Therefore, for circuits where a nearly constant current flows, a type of fuse called a "quick-opening type" should be selected.
However, the actual current flowing in a circuit is not constant in most cases, but varies in a complex manner depending on the operating conditions. For example, if a capacitor with a large capacitance is connected to a power supply circuit, an inrush current many times greater than the steady-state current will flow when the power is turned on. It is inevitable that a large current flows when a motor starts up (from the time power is turned on until rotation stabilizes).
Such rush current is normal, but depending on the fuse selection, the rush current may cause the fuse to blow. On the other hand, it is undesirable to set a fuse with a large current rating with a large margin, since this will reduce safety. In such cases, one countermeasure is to use "inrush-resistant fuses," which have a characteristic of not blowing at a short period of rush current.
It is difficult to determine the relationship between the rush current in a circuit and the fuse blowing, and the waveform and time of the current must be carefully examined in relation to the fuse's blowing characteristics.
It is necessary to select a fuse with appropriate fusing characteristics based on the change over time of the heat generated by the fuse. Fuse manufacturers provide many materials for this purpose, and we recommend that you make use of these materials.
Fuses are treated the same as wires in circuit design, but in practice they have a small resistance value, so some voltage drop is inevitable. Especially since recent electronic circuits have lower operating voltages, it is necessary to check the effects of such voltage drops.
Fuses also have a rated voltage and should always be used at or below that voltage. If Chip Fuses are used above their rated voltage, there is a risk of arcing after fusing, causing them to conduct again.
Derating is a consideration in the rated current. In the case of fuses, there are two types of derating: the common derating, where the fuse is selected so that the steady-state current of the circuit is less than 70% of the fuse's rated current (varies slightly from fuse manufacturer to fuse manufacturer).
The other is derating for temperature. The derating should correspond to the ambient temperature of the board on which the fuse is mounted. In general, the amount of derating should be checked in the fuse manufacturer's catalog or data sheet.
In the case of glass tube fuses and the like, even if they blow due to excessive current, continuity can be restored by replacing the fuse after repairing the faulty part. Chip Fuses, however, are not intended to be replaced. In other words, when a Chip Fuse blows, the entire circuit board must be repaired and replaced instead of replacing the fuse.
In addition, it is difficult to visually confirm whether a Chip Fuse has blown or not. Although it is possible to electrically confirm blown fuses by using a tester, it is not possible to judge the blown fuse from its external appearance, as is the case with glass tube fuses.
*Including some distributors, etc.
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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.
Good-Ark Semiconductor, a subsidiary of Suzhou Good-Ark Electronics, is a global semiconductor manufacturer founded in 1990 and located in Ronkonkoma, New York. The company is publicly listed on the Shenzhen Stock Exchange (stock code: 002079). It offers various surface mount, through-hole, and wafer devices, including diodes, rectifiers, TVS, Chip Fuse, Thermistor, and MOSFETS. To reach overseas customers, it provides global distribution networks and technical support. The company has been certified with ISO 9001, ISO/TS16949, ISO 14001, and OHSAS 18001.
AEM (American Electronic Materials), founded in San Diego, California, and established in 1986, is a developer and manufacturer of SMD components for circuit protection applications. Their products include SolidMatrix Chip Fuse, AirMatrix SMD Wire-In-Air Fuse, CMF High Power Fuse, Thin Film Fuse, and Multilayer Varistors. Their platform is focused on providing solutions for automotive, battery management systems, power tools, IT, and PC. These products help prevent damage to electronic devices and systems by interrupting the flow of electricity in the event of an overload or short circuit, ensuring the safety of electronic systems.
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.
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.
Bel Fuse Inc. was founded in 1949 and is currently headquartered in Jersey City, New Jersey. The company designs, manufactures and distributes electronics and connectivity devices to global markets including telecommunications, commercial aerospace, transportation, and high-speed data transmission. The company sells products in 16 product segments, including optical connectivity, electrical connectivity, magnetics, power supplies, and others. The company also offers an online resource library for product configuration assistance including technical aspects and drawings, video libraries, and assembly instructions.
SOC fuse technology is a manufacturer company which has its headquarters in Japan which develops, manufactures and sell fuses for circuit protection of electronic equipment and electronics since 1958. The company has three subsidiaries in North America, Asia and Europe to carter their customers needs. SOC is being guided by its founding spirit of valuing its customers, shareholders and employees. The company is currently collaborating with automobile companies to develop fuses to protect the coming generation. The company is looking forward to come up with fuses with good capabilities.
Conquer Electronics Co., Ltd. is an ISO 9001, IATF 16949, and ISO 14001 certified manufacturer of fuses and circuit protection devices established in 1977. Headquartered in Taipei, Taiwan, the company offers a range of fuse types including chip, power, automotive, and resettable models, as well as accessories such as fuse holders and blocks. Conquer Electronics has been recognized by 13 international regulatory organizations including the RoHS and IEC. They also offer product customization services to their clients in the telecommunications, consumer electronics and power tools markets.
YAGEO Group, a global supplier of passive components, including chip resistors, MLCC, through-hole resistors, wireless components, inductors and coils, established in 1977 and is based in Taiwan. The Group serves multiple industries, including automotive, telecommunications, smart manufacturing, and power and energy. They offer complete solutions for body and convenience, powertrain and safety, comfort and infotainment, and e-mobility in the automotive industry. They have established a strong global presence with 29 sales offices, 51 production sites, 20 research and development centers, and 40,000 employees worldwide.
Hokuriku Electric Industry Co. LTD., founded in 1943 and headquartered in Toyama, Japan, is a manufacturer and supplier of electronic components. Some of its products include circuit modules, fixed resistors, printed circuit boards, variable resistors, and NTC Thermistors, and it has eight domestic affiliate companies and 11 overseas affiliate companies, including HDK America Inc., and HDK China Ltd. The company is ISO 14001 certified, and it is working on producing products that are RoHS compliant. Its net sales for the 2022 fiscal year were 45.46 billion Japanese Yen, which was a 5.01 billion YoY increase from 2021.
Matsuo Electric Co.,Ltd., founded in 1949 in Japan, is a specialty component manufacturer of tantalum capacitors, film capacitors, and circuit protection components. The company's microelectronics products include small size, long life, chip tantalum capacitors, leaded tantalum capacitors, fuses, and PET and PPS-type film capacitors used by original equipment manufacturers in a wide variety of industries, including the automotive, electronics, space, and healthcare markets for fire alarms, personal computers, power tools, hearing aids, automotive navigation, and many more devices. Matsuo Electric Co.,Ltd.'s products are RoHS compliant.
PICO Inc., founded in 1977 and headquartered in Minato-Ku, Tokyo, Japan, is a manufacturer of fuse and probes. The company specializes in the manufacture of a comprehensive range of products, including skygate fuses, thermal fuses, varistors, probes, and LED analyzers. It holds ISO 9001, RoHS, CE, and SGS certifications for the optimal quality and precision of its products. The benefits of its offerings include enhanced electrical testing capabilities, improved circuit protection, and efficient LED analysis, resulting in product performance and safety. These products find applications in various industries, such as electronics manufacturing, automotive, aerospace, and telecommunications.
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.
The SCHURTER Company was founded in 1933 and operates out of Lucerne, Switzerland. SCHURTER is an innovator and producer of electronic components for many markets including industrial equipment, medical equipment, automotive, avionics and space, data and communication, and energy. SCHURTER products and solutions include: circuit protection, connectors, switches, EMC, custom components, HMI solutions, PCAP touchscreens, resistive touchscreens, capacitive switches, membrane switches, and a series of smart products including Smart Connector DS11 PEM, Smart Connector DT31 external, and Smart Ecosystem.
Kamaya Electric CO., LTD., a company founded in 1957 and headquartered in Yokkaichi, Japan, is a manufacturer and distributor of electrical components. The company produces chip resistors, lead resistors, chip fuses, and electro-sparks. It also manufactures amplifiers to increase the amplitude of electrical signals, audio player devices, and other electronic equipment. It provides worldwide shipping and a 3-year warranty on all purchases through Sourcengine. The company was awarded certification for ISO 9001 in July 1998 and has achieved ISO 14001 certification. It serves various industries, including Automotive, Lighting, Medical, and more.
Ranking as of May 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | PICO Inc. |
20.0%
|
| 2 | YAGEO |
20.0%
|
| 3 | KAMAYA ELECTRIC CO., LTD. |
13.3%
|
| 4 | Matsuo Electric Co.,Ltd. |
13.3%
|
| 5 | Panasonic Corporation of North America |
6.7%
|
| 6 | SOC |
6.7%
|
| 7 | AEM Components, Inc. |
6.7%
|
| 8 | Bourns, Inc |
6.7%
|
| 9 | KOA Corporation |
6.7%
|
Derivation Method
The ranking is calculated based on the click share within the chip fuse page as of May 2025. 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
|
6 | 37.5% |
|
Japan
|
6 | 37.5% |
|
Taiwan
|
3 | 18.8% |
|
Switzerland
|
1 | 6.3% |
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