17 Inductor (Coil) Manufacturers in 2024
This section provides an overview for inductors (coil) as well as their applications and principles. Also, please take a look at the list of 17 inductor (coil) manufacturers and their company rankings. Here are the top-ranked inductor (coil) companies as of April, 2024: 1.SAGAMI ELEC CO., LTD., 2.HIOKI E.E. CORPORATION, 3.CEFEM GROUP.
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.
What Is an Inductor (Coil)?
An inductor (coil) is an electronic component. It is a coil of conductive wire wound around a magnetic core such as iron.
It is a basic electronic component like resistors, diodes, and capacitors, and is used in a high percentage of electronic devices. An inductor (coil) has several distinctive functions.
When a current tries to flow through an inductor (coil), it interferes with this flow, and conversely, when the current tries to decrease, it tries to increase it. In addition, when a signal with a high frequency tries to pass through the inductor, the inductor tries to block it.
Taking advantage of the above characteristics, inductors are used in a wide range of applications, such as automobiles, communication equipment, and precision instruments, to eliminate noise and select necessary signals in the circuits of electronic equipment.
Uses of Inductors (Coils)
Inductors (coils) are widely used in electrical and electronic circuits and are one of the essential components of industry. The following are examples of applications of inductors (Coil).
1. Switching Power Supplies
The power outlet in our homes provides 100 VAC voltage, but many electronic circuits operate on DC current. A device that converts AC to DC is called a switching power supply. A switching power supply contains an inductor (coil).
The inductor (coil) is used to smooth the current and eliminate unwanted high-frequency noise by taking advantage of its property to prevent sudden changes in the current.
2. Use as a Transformer
Generally, two inductors (coils) are used in a transformer. When voltage is applied to the coil on the input side, a magnetic field is generated in the coil, which is induced in the inductor (coil) on the output side. The inductor (coil) on the output side receives the magnetic field and generates a voltage.
In this way, the high-voltage electrical energy on the input side is converted into low-voltage electrical energy on the output side. The voltage can be adjusted by changing the number of conductor turns of the inductor (coil).
3. Communication Equipment
Inductors (coils) are also used in communication circuits. Radio receiving circuits, for example, have built-in inductors, and received signals can be amplified by passing received radio waves through the inductors.
In addition, an inductor (coil) dedicated to high-frequency circuits, called a toroidal core, may be used in communication equipment. This inductor (coil) prevents leakage of magnetic flux and can produce efficient inductance in the desired frequency band.
Principle of Inductors (Coils)
An inductor (coil) consists of copper wire wound in a spiral shape. A ferromagnetic material such as iron or ferrite may be inserted in the center of the winding, which allows for miniaturization at the cost of increased weight.
According to Fleming's left-hand rule, when an electric current flows through an inductor (coil), a magnetic field is generated and converted into magnetic energy. The more turns and the smaller the diameter of the coil equates to a stronger magnetic flux and therefore the higher the magnetic energy.
When an alternating current flows through the inductor (coil), the magnetic field changes in accordance with the frequency. This magnetic field change generates an electromotive force, which is the self-induced electromotive force. The magnitude of the self-induced electromotive force varies depending on the size of the inductor and the number of conductor turns, and is called inductance, using the unit henry (H). The inductor (coil) acts to prevent the rate of change of the current over time.
Inserting an inductor (coil) in an AC circuit causes a phase delay. Also, when an inductor (coil) is inserted into a DC circuit, it interrupts the current during the transient period and maintains the current after the power supply is cut off.
Types of Inductors (Coil)
There are several types of inductors (coil). The following are examples of inductor (coil) types.
1. Air-Core Coil
An air-core coil is an inductor (coil) in which the center of the coil is hollow. Since the shape of the coil wire wound around the coil is free, self-induction can be enhanced. However, air coils tend to be large and are not often used except for high-frequency applications.
2. Iron-Core Coil
An iron-core coil is an inductor (coil) with an iron core in the center of the coil. The iron core enhances self-induction and can handle large amounts of power. Since the size can also be reduced, they are used in a wide range of applications.
3. Ferrite Core Inductor
Ferrite core inductors (coils) are inductors that use a magnetic core material called ferrite. Ferrite has high magnetic permeability at high frequencies, making it suitable for high-frequency circuits. They may also be designed as inductors for a specific frequency range, depending on the core material.
List of 17 Inductor (Coil) Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- China
- France
- Germany
- Japan
- Spain
- Thailand
- United Kingdom
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SAGAMI ELEC CO., LTD.
Power Inductors
Manufacturer Overview
Sagami ELEC Co Ltd, established in 1956 at Yokohama, Japan is a manufacturer of electronic components for various inductor coils. The company since inception specializes in manufacturing various advanced coils for inductors and transformers and AC/DC converters. Some of their products include SMD power inductors, metallic magnetic inductors, Wire-wound chip inductors, ZETA transformers and Pulse drive transformers for automotive equipment. These electronic components find multiple applications in TV & monitor, portable audio, camera, car navigation and Smartphones.These equipment come with enhanced performance, firm lifespan, magnetic flows and uninterrupted power supply to the sources.
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EREMU, SA
Low voltage inductances
Manufacturer Overview
EREMU, SA, founded in 1958 and located in Astigarraga, Guipuzcoa, is a manufacturer and repairer of electrical transformers and other electrical equipment. The company offers a range of products, including low-voltage transformers, automatic voltage regulators, cast resin transformers, three-phase autotransformers, and light flow regulators. These transformers have applications in laboratory power supply, aeronautics and defense, renewable energy, telecommunications, and solutions to electrical network issues. It complies with international manufacturing and testing standards, such as IEC, UNE, NEMA, and UL.
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KOA Corporation
Inductor (Coil)
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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SUMIDA
PowerInductors
Manufacturer Overview
Sumida Group, founded in 1956 with headquarters in Japan, is a manufacturer of inductive components and modules. The company's wide range of products includes power transformers, power inductors, sensors, actuators, and components for automotive and medical purposes. Sumida’s products are used in a wide range of applications and electronic devices within the consumer electronics, automotive, medical, and industrial markets. In 2021, Sumida was recognized with a Quality Award from CODICO and a Supplier Quality Excellence Award from General Motors.
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Shenzhen Sunlord Electronics Co.,Ltd.
Coils/Inductors
Manufacturer Overview
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.
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Nippon Chemi-Con Corporation.
Inductors (Coils)
Manufacturer Overview
Nippon Chemi-Con Corporation. was established in 1931 and is a manufacturer of aluminum-based products, precision mechanical components, and electronics equipment based in Shinagawa, Tokyo, Japan. The company's product portofolio offers various products such as aluminum electrolytic capacitors, multilayer ceramic capacitors, inductors, camera module, and silicon wafer. The products have been used in various application such as electric power steering, direct injection engine control, solar power inverter, switching power supply, and automotive micro computer power supply. The company has passed the ISO 9001, IATF 16949, and ISO 14001 standards certification. The products are manufactured under the compliance of RoHS and REACH/SVHC standards.
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Murata Manufacturing Co., Ltd.
Inductors
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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SAMSUNG ELECTRO-MECHANICS
Inductor
Company Overview
SAMSUNG ELECTRO-MECHANICS, established in 1973 and based in Suwon, South Korea, is a manufacturer and supplier of MLCCs (Multilayer Ceramic Capacitors). The company's product portfolio includes chip resistors, camera modules, and MLCCs with high bending strength. These products are used in various industries, including consumer electronics, automotive, and telecommunications. The company is ISO 9001, ISO 14001, and ISO 45001 certified for its quality, safety, and environmental management, with a global network in various countries including the United States, Singapore, and India.
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HIOKI E.E. CORPORATION
Inductors (Coils)
Company Overview
Hioki E.E. Corporation was founded in 1935 and headquartered in Ueda, Nagano. Hioki provides testing & analysis, manufacturing & inspection, and equipment maintenance to industries including mobility, battery, motor, energy, electronic components, and infrastructure. Hioki’s has 10 primary product categories which are: recorders and data loggers including oscilloscopes, LCR/Resistance Meters, safety testing including signal generators and calibrators, power meters including power quality analyzers, probes & sensors, optical & PV maintenance & telecommunication, environmental measuring, DMM & testers & field measuring, IoT & new solutions & meter relay, and bare board & package testing.
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CEFEM GROUP
Inductors
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LEIFERT INDUCTION GmbH
THE FLEXIBLE INDUCTION COIL
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KV Electronics
Inductor
Distributor Overview
KV Electronics, founded in Thailand in 1988, is a supplier of magnetics components. The company's product portfolio includes a diverse array of transformers and inductors for various applications, including power conversion, signal filtering, and impedance matching, ferrite cores and materials are used to optimize electromagnetic performance and enhance the efficiency of magnetic circuits and customized magnetic component solutions. It also offers guidance on component selection, materials, and configurations to address unique technical challenges and achieve project-specific goals.
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Electronic Surplus
Inductors & Coils
Distributor Overview
Electronic Surplus, founded in 1946 and headquartered in Mentor, Ohio, United States, is a retail supplier of electronic components and parts. The company offers over 60,000 products, including capacitors, circuit breakers, and PC Card Edge Connectors. Its products are used by electronics professionals and hobbyists. It also purchases large quantities of surplus electronics components, including obsolete parts, discontinued products, and military parts. It also sources electronic components it doesn't currently have available. Its products are available for purchase in limited and large quantities via its online store.
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Inductor (Coil) Manufacturer Ranking
*Including some distributors, etc.Ranking as of April 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | HIOKI E.E. CORPORATION |
12.3%
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| 2 | SAGAMI ELEC CO., LTD. |
12.3%
|
| 3 | IAS GmbH |
8.2%
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| 4 | Wood Valley Works |
8.2%
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| 5 | CEFEM GROUP |
6.8%
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| 6 | KV Electronics |
6.8%
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| 7 | KOA Corporation |
6.8%
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| 8 | Electronic Surplus |
5.5%
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| 9 | Nippon Chemi-Con Corporation. |
5.5%
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| 10 | Murata Manufacturing Co., Ltd. |
5.5%
|
Derivation Method
The ranking is calculated based on the click share within the inductor (coil) page as of April 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
- SUMIDA: 17,985
- Nippon Chemi-Con Corporation.: 6,045
Newly Established Company
- Wood Valley Works: 2016 (8 years ago)
- Shenzhen Sunlord Electronics Co.,Ltd.: 2000 (24 years ago)
- KV Electronics: 1988 (36 years ago)
Company with a History
- Murata Manufacturing Co., Ltd.: 1944 (80 years ago)
- SAGAMI ELEC CO., LTD.: 1956 (68 years ago)
- Circe: 1981 (43 years ago)
Global Distribution of Inductor (Coil) Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
Japan
|
6 | 46.2% |
Germany
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2 | 15.4% |
Spain
|
1 | 7.7% |
China
|
1 | 7.7% |
France
|
1 | 7.7% |
United Kingdom
|
1 | 7.7% |
Thailand
|
1 | 7.7% |
List of Inductor (Coil) Products
30 products are listed.
Comotechnos Co., Ltd.
Featuring low distribution and high adsorption performance E3 coil (surface implementation compatible air core coil)
10+ people viewing
The E3 coil is a SMD (surface implementation) compatible air coil that features low distribution and high adsorption performance by making it a squ...
Comotechnos Co., Ltd.
Design E4 coil that suppresses thermal conduction from the substrate surface (air core coil compatible with surface implementation)
10+ people viewing
E4 coil has a high adsorption performance by square (square) shape, and a lead is provided to hold a space under the fuselage, reducing the heat co...
Comotechnos Co., Ltd.
Features E2 coil (surface implementation supported coil)
The E2 coil is an SMD (surface implementation) compatible coil that features a round shape that maintains the clearance of the rounded body and the...
