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This section provides an overview for noise filters as well as their applications and principles. Also, please take a look at the list of 19 noise filter manufacturers and their company rankings. Here are the top-ranked noise filter companies as of March, 2025: 1.CUI Inc, 2.Marcuse & Son, Inc., 3.Shenzhen Yanbixin Technology Co., Ltd..
Table of Contents
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.
A noise filter is an electronic component used to remove noise from a power supply or signal.
It is used in many electric and electronic circuits. When the current value in a communicating cable changes, a magnetic field is generated in the surrounding area. This magnetic field generates noise (abnormal signals) in the surrounding cable.
Noise filters can be installed to prevent the generation of noise. Note that using a device without noise filtering may cause malfunctions or failures.
Noise filters are widely used in acoustic and industrial equipment.
The following are examples of noise filter applications:
Noise filters are mainly used for receiving equipment that want to avoid noise and for output equipment that generates noise. Speakers and radios are devices that you want to eliminate the effects of noise, and noise filters are attached to communication lines. In this case, noise is a source of noise.
Computers such as PLCs also want to avoid malfunctions caused by noise, so noise filters are sometimes attached to power supply lines and so on. On the other hand, inverters and thyristors are devices that generate noise.
Since current and voltage changes in the secondary side circuit may be steep, noise filters are used to remove generated noise by smoothing it out. When smoothing the generated current, a reactor is generally used.
Noise is transmitted in two main ways: radiation noise, which is radiated directly into space from inside electronic equipment, and conducted noise, which is transmitted through power supply lines and electronic circuit wiring and causes interference to other electronic equipment. It is generated as noise, for example, when radio waves of different wavelengths are introduced into radio waves of various wavelengths.
To prevent this noise, a filter (low-pass filter) is used to cut high-frequency signals if the main cause of the noise is high frequency. On the other hand, if the noise is low-frequency, a filter that cuts low-frequency signals (high-pass filter) is used.
Inductors and capacitors are the most common types of filters that act as low-pass filters. An inductor has a low impedance for low-frequency signals and a high impedance for high-frequency signals. Therefore, inserting an inductor in series in a circuit, allows low-frequency signal components to pass through more easily, while allowing high-frequency components to pass through less easily.
Capacitors, on the other hand, have the opposite characteristics of inductors. Combining a capacitor and an inductor makes a noise filter that cuts low and high frequencies.
Two important factors in selecting a noise filter are the rated voltage and the rated current.
Use a voltage lower than the rated voltage (maximum operating voltage) specified for each product. Some manufacturers take voltage fluctuations into account and may allow the use of a voltage higher than the rated voltage.
As with voltage, each product has its own upper limit for current. In particular, current characteristics tend to change depending on the ambient temperature, so it is necessary to check the environment in which the product will be used in advance.
As the ambient temperature rises, the allowable load current gradually decreases. Although a current in excess of the allowable current will not cause a serious problem for a short period of time, repeated current flow may cause a failure. In addition, DC power supplies, etc., may generate inrush currents, and noise filters should be selected by considering the current value and duration of the inrush current.
Ground wiring is also important for noise filters. The ground wiring should be as thick and short as possible. If the ground wire is long, an inductance component will act on it, which may degrade the attenuation characteristics.
It is also important not to tie input/output wires together or wire them close together. If the input/output wiring is close together, high-frequency noise components will bypass the filter and the desired filtering effect will not be achieved.
*Including some distributors, etc.
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Spectrum Control serves several markets including the wireless communication, military communication, aerospace, and high temperature industrial markets. Among the individual components Spectrum Control manufactures and develops are EMI filters; subsystems for signal conditioning and RF distribution; components including power dividers, limiters, filters, amplifiers, diode drivers, and rotary joints; as well secure communications solutions and rugged devices.
Tokin America Inc., headquartered in San Jose, California, is a supplier of passive electronic components in North, South, and Central America and is a subsidiary of Tokin Corporation. Its diverse product range includes capacitors, noise countermeasure components, and sensors used in several industries, including telecommunication, automotive electronics, and digital home appliances. The company also provides specialized design support and works with several distributors within the United States, including Future Electronics, WPG Americas, and Bravo Electronics.
CUI is manufacturer of electronic components intended to create ease of access to power supply products. Established in 1989 and situated at USA The company offers PC adapters, wall plugs, board mounts and chassis mount as well as isolated and no isolated converters to clients. CUI Global is a publicly traded holding company devoted to maximizing shareholder worth through the acquisition and development of ingenious companies and technologies. From its GasPT2 platform targeting the energy sector, to its subsidiary the company is a elite digital power platform targeting the networking and telecom industries,
KEMET has a portfolio of over 1,600 patents serving the automotive, aerospace, industrial, telecommunications, computing, consumer, and medical devices. KEMETs devices provide filtering, sensing, energy storage, power conversion, and haptic actuator technology. Among these devices are capacitors, electromagnetic compatibility (EMC) components, resistors, circuit protection devices, inductors, sensors, Piezoelectric devices, release, transformers, and engineering kits.
Marcuse & Son was established in 1925 and operates out of Fort Worth, Texas. Marcuse & Son is a distributor of air compressors and air compressor parts and accessories. Air compressor offerings include reciprocating air compressors and rotary style air compressors. Marcuse & Son’s accessories include air receivers, alternators, belt guards, block heaters, brass valves and fittings, breather vents, compressor lubricants, exhaust mufflers, filters, regulators & lubes, refrigerated air dryers, and water separators.
TDK-Lambda serves the communications, medical, factory automation, semiconductor, transportation, LED display, and energy industries with a variety of power-related products. Among these products are onboard power supplies, PC board power supplies, noise filters, linear power supplies, unit and configurable power supplies, programmables power supplies, power modules, and bidirectional DC-DC converters.
Shenzhen Yanbixin Technology Co., Ltd. was founded in 2008 and is headquartered in China and it is manufacturer in the field of electronics and technology. The company, certified in ISO 9001:2008, specializes in a wide range of cutting-edge products and services, including printed circuit boards (PCBs), electronic components, LED displays, and consumer electronics such as EMI Power Filter, Electrical Noise Filter and many more. It serves diverse industries, such as consumer electronics, telecommunications, automotive, and more. Its products provide components and technologies that help to the functionality and performance of various electronic devices and systems.
Elektronické součástky CZ, established in 1992 and headquartered in Ostrava, Czech Republic, is a manufacturer of electronic and electromechanical components. Its offerings encompass resistors for power supplies and audio systems, capacitors for filters and oscillators, inductors for energy storage, integrated circuits (ICs) for diverse electronic devices, and light-emitting diodes (LEDs) for lighting applications. These solutions find utility in automotive, telecommunications, manufacturing, medical, and consumer electronics industries. Its electronic components conform to international standards like IEC, CECC, and EN, ensuring uniform quality. These components possess IECEE-CB certificates for worldwide applications, with production certified under ISO 9000 standards.
Schaffner, founded in Luterbach, SO, in 1962 is a manufacturer of electromagnetic solutions that ensure the efficient operation of electronic systems. The company's product portfolio includes Active Harmonic Filters and Passive Harmonic Filters. Output Filters, Reactors and LCL Filters. 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.
COSEL, headquartered in Pfullingen, Germany, has been a manufacturer of power supplies, converters, filters, and custom solutions since 1968. Its product range includes AC-DC power supplies, DC-DC converters, EMI filters to reduce electromagnetic interference, and custom solutions tailored to specific customer needs. Additionally, COSEL offers services such as system integration, training, and repair. Its products find applications in industries such as industrial automation, medical equipment, test and measurement equipment, telecoms, and datacom.
SWEETA was established in 1995 and is headquartered in New Taipei City, Taiwan. SWEETA is a manufacturer of switches, AC sockets, and circuit breakers globally. Most products have been certified to meet international safety standards such as UL, CSA, VDE, and others. SWEETA has an extensive product line. A few listings include AC sockets, plug adapters, switches, thermostats, and test tweezers.
CD Automation UK, founded in Luterbach, SO, in 1962 is a supplier and manufacturer of industrial instrumentation including power switching, monitoring & filtering products. The company's product portfolio includes Temperature Controllers that are used for Improving control and precision of process environments. Soft Starters used for Elevating motor efficiency and reducing energy consumption, Displays & Process Indicators, and Power Meters. The company serves markets including Medical and Healthcare, Aerospace and Defense, Consumer Goods, Industrial Manufacturing and Construction and Building.
OKAYA ELECTRIC INDUSTRIES., LTD was founded in 1939 in Japan. OKAYA produces a range of electronic parts for various industries. Some of these include noise suppression products, surge protective devices, display products including LEDs, and micro sensors with LED lights. OKAYA has offices across Eastern Asia and in the United States.
Bulgin serves the industrial, maritime, energy, automotive, agricultural, telecommunications as well as consumer electronics industries. Bulgin is a global leader in sealed connectors and components as well as electromechanical switches. Bulgin offers customized cable designs for customers needing specific designs to protect cable integrity or safety.
TE Connectivity Ltd., started in 2007 and headquartered in Schaffhausen, Switzerland, is a designer and manufacturer of sensor and connectivity solutions for harsh conditions. It operates three primary segments, namely transport, industrial, and communication solutions, and its product portfolio includes automotive connectors, fiber optic connectors, analog power meters, RTD sensors, and circuit breakers. It serves customers in approximately 140 countries and several industries, including aerospace, automotive, rail, IoT connectivity, and E-mobility. The company manufactures 192 billion products annually and has invested over 610 million USD in research development and engineering.
Omron Corporation, started in 1933 and headquartered in Kyoto, Japan, is a manufacturer of automation components, equipment, and systems, and it developed the first contactless proximity switch in 1960. It has four domains, including industrial automation, electronic components, healthcare, and social systems, and it provides products and services in around 120 countries and regions. Some of its products include microsensing devices, access control systems, industrial robots, surveillance cameras, and blood pressure monitors. In 1971, it developed the first online cash machine, and in 1972, it established Japan’s first welfare factory.
Aimtec, founded in, Vaudreuil-Dorion, Quebec, in 2002 is a manufacturer of modular Isolated DC-DC switching power converters, AC-DC power supplies, and switching regulators. The company's product portfolio includes EMC filters and LED drivers, Switching Regulators, LED Drivers, and Photovoltaics. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. They have offices in offices in Europe and Asia and also offer customer services that include support, custom research projects and customized services.
Established in 1991 in Taipei, Taiwan, Cincon Electronics Co., Ltd is a global supplier of switch mode power conversion products to the railway, communications, computer, industrial, medical, consumer and lighting markets. Cinco designs and manufacture industry standard, RoHS compliant, DC-DC converters, AC-DC power supplies and LED power supplies. Altogether Cincon’s catalog exceeds 3,000 standard products. Cincon’s factories have achieved ISO 9001 and 14001 certification.
Ranking as of March 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | CUI Inc |
15.5%
|
| 2 | Marcuse & Son, Inc. |
12.5%
|
| 3 | Shenzhen Yanbixin Technology Co., Ltd. |
11.6%
|
| 4 | Schaffner Holding AG |
10.9%
|
| 5 | Spectrum Control |
10.5%
|
| 6 | Elektronicke soucastky CZ |
9.3%
|
| 7 | Tokin America, Inc |
8.7%
|
| 8 | COSEL Co., Ltd. |
8.2%
|
| 9 | KEMET |
6.3%
|
| 10 | Sweeta Products Corporation |
3.5%
|
Derivation Method
The ranking is calculated based on the click share within the noise filter page as of March 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
|
5 | 33.3% |
|
Japan
|
4 | 26.7% |
|
Taiwan
|
2 | 13.3% |
|
China
|
1 | 6.7% |
|
Czech Republic
|
1 | 6.7% |
|
Switzerland
|
1 | 6.7% |
|
United Kingdom
|
1 | 6.7% |
159 products found - Page 2
159 products - Page 2
KITAGAWA INDUSTRIES CO., LTD.
30+ people viewing
■Features - Ferrite core (noise filter) with an applicable frequency band of several MHz to several hundred MHz. ・Effective for common mode noise ...
KITAGAWA INDUSTRIES CO., LTD.
30+ people viewing
Last viewed: 16 hours ago
■Features - Ideal for preventing conduction noise in inverter/servo amplifier output cables and in-vehicle charging cables. ・Low frequency noise (...
KITAGAWA INDUSTRIES CO., LTD.
40+ people viewing
Last viewed: 17 hours ago
■Features - Compact ferrite core (noise filter) with two holes. ・Effective for common mode noise countermeasures.
KITAGAWA INDUSTRIES CO., LTD.
20+ people viewing
Last viewed: 1 day ago
■Features - Split type ferrite core (noise filter) that can be attached to pre-wired cables or cables with connectors. ・Effective for common mode ...
KITAGAWA INDUSTRIES CO., LTD.
40+ people viewing
Last viewed: 1 day ago
■Features - Non-split type ferrite core (noise filter). ・Effective for common mode noise countermeasures.
KITAGAWA INDUSTRIES CO., LTD.
30+ people viewing
Last viewed: 1 day ago
■Features ・A ferrite core (noise filter) that is a two-part clamp type and can be easily retrofitted to electric wires. ・Effective for common mod...
KITAGAWA INDUSTRIES CO., LTD.
30+ people viewing
Last viewed: 2 hours ago
■Features - When using the cable by turning it, it saves space compared to a round core. - Oval shape makes it suitable for insertion into cables w...
KITAGAWA INDUSTRIES CO., LTD.
30+ people viewing
Last viewed: 1 hour ago
■Features ・A ferrite core (noise filter) that can be used in the output cables of inverters and servo amplifiers and in the engine room. ・Effecti...
KITAGAWA INDUSTRIES CO., LTD.
30+ people viewing
■Features -Effective in countering common mode noise that spans both frequencies from noise terminal voltage (~30MHz) to radiated field strength (3...
KITAGAWA INDUSTRIES CO., LTD.
20+ people viewing
Last viewed: 1 day ago
■Features - Ideal for countermeasures against power supply switching noise and motor noise (common mode noise). - Compatible with low frequency noi...
KITAGAWA INDUSTRIES CO., LTD.
10+ people viewing
■Features ・Operating temperature range: -40℃ to +125℃ - Suitable for countermeasures against low frequency noise (150kHz to 30MHz) in power supply...
KITAGAWA INDUSTRIES CO., LTD.
20+ people viewing
■Features - Split ferrite core (noise filter) with a resin case that can be attached to pre-wired cables and cables with connectors. ・Effective fo...
KITAGAWA INDUSTRIES CO., LTD.
30+ people viewing
■Features - Can be fixed with M4 screws. - Split ferrite core (noise filter) with a resin case that can be attached to pre-wired cables and cables ...
KITAGAWA INDUSTRIES CO., LTD.
20+ people viewing
■Features - Can be fixed to the housing using reusable snaps. - Comes with a resin case that can be attached to pre-wired cables and cables with co...
KITAGAWA INDUSTRIES CO., LTD.
20+ people viewing
■Features ・Used as a conduction noise filter in various flat cables, FPCs, etc. ・Effective for common mode noise countermeasures.
Raydz Co., Ltd.
70+ people viewing
Last viewed: 1 day ago
ENEPLATE is a noise filter that suppresses low frequency conduction noise and lowers power harmonics. Simple and compact design, no additional ins...
KITAGAWA INDUSTRIES CO., LTD.
10+ people viewing
■Features ・Used as a conduction noise filter in FPC, etc. ・Effective for common mode noise countermeasures.
Magnetic Research Institute Co., Ltd.
40+ people viewing
■Features Equipped with a common mode choke coil developed by NTT. It cuts the noise that enters through cables such as analog telephone lines and ...
KITAGAWA INDUSTRIES CO., LTD.
30+ people viewing
Last viewed: 14 hours ago
■Features - Due to the open magnetic circuit structure, there is little difference in impedance between each FPC line, and a uniform effect can be ...
Magnetic Research Institute Co., Ltd.
70+ people viewing
Last viewed: 17 hours ago
■Features The DMJ6-2HV relay connector with built-in EMC noise filter is the perfect item for those seeking improved communication quality. This vi...
KITAGAWA INDUSTRIES CO., LTD.
30+ people viewing
■Features ・Since it has a 2-split core, it can be attached to pre-wired cables and cables with connectors. ・As it is a composite type with a resi...
