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This section provides an overview for cermet trimmers as well as their applications and principles. Also, please take a look at the list of 3 cermet trimmer manufacturers and their company rankings.
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Cermet trimmers are a type of circuit component known as "semi-fixed resistors" in Japanese. Unlike variable resistors, where users must adjust the resistance value each time, cermet trimmers maintain the set resistance value even after it has been changed.
Incidentally, the term "Cermet" is a blend of ceramics and metal, and it is called cermet because it is made by blending these two types of materials. For example, it includes ruthenium oxide metal particles and glass as materials.
Cermet trimmers are used in circuits where resistance changes infrequent. With regular variable resistors, users must adjust the resistance value using a dial or similar method each time they use the resistor. In contrast, cermet trimmers are used, for example, to calibrate the displayed value of a measuring instrument. In this case, the resistance value is adjusted to the initial setting when the instrument leaves the factory, and afterward, the instrument is used as a resistor with a constant resistance value. Cermet trimmers are also employed in industrial equipment, medical devices, household appliances, and measuring instruments.
Cermet trimmers fall into the category of variable resistors, which can be carbon (carbon film), metal wire wound, or thin film. Cermet trimmers have a wide range of resistance values, excellent temperature resistance, and stable characteristics. They also allow for very smooth and subtle adjustments, with relatively low levels of noise associated with the sliding motion.
The primary components of cermet trimmers are titanium and tantalum, both of which exhibit excellent corrosion resistance. Carbon is sometimes used instead of cermet in consumer products like household appliances to reduce costs. However, for its reliability, cermet is preferred in measuring instruments, communication equipment, and medical devices. The mechanical structure used to set the resistance varies from product to product, including the position of the dial used for resistance adjustment. Electrical parameters and variable resistance ranges also differ from one product to another, so selecting the right one for the application is essential.
*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.
Teikoku Tsushin Kogyo Co., Ltd. (TTKC) is a Japanese electronic component manufacturer headquartered in Kanagawa. Established in 1944, the company initially specialized in wireless communication parts before expanding to the distribution and production of various sensors, potentiometers, switches, and resistors under the brand name Noble Electronics. The company has several sales outlets throughout Japan, as well as overseas offices in the US, China, Korea, Singapore, and Thailand. From their many manufacturing locations, TTKC allows clients to customize products used in a range of applications, including industrial equipment, home appliances, A/V equipment, and health care.
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.
Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
2 | 66.7% |
|
United States of America
|
1 | 33.3% |
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Shoei Electronics Industry Co., Ltd.
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