2 Choke Coil Manufacturers in 2024
This section provides an overview for choke coils as well as their applications and principles. Also, please take a look at the list of 2 choke coil manufacturers and their company rankings. Here are the top-ranked choke coil companies as of April, 2024: 1.Coilcraft Inc., 2.Ueno Co., Ltd.
Table of Contents
What Is a Choke Coil?
A choke coil is an element used in electrical circuits and is a type of inductor optimized for use as a choke.
The meaning of choke in this case refers to the ability to keep AC currents above a certain frequency relatively high and to facilitate the passage of currents below that frequency, and is implemented in an electrical circuit.
The typical coil construction consists of a laminated plate of silicon copper or other steel plate as the core (iron core), around which conductors are wound in a spiral shape.
There are three types of choke coils: smoothing choke coils, active filter choke coils, noise filter choke coils, and power line choke coils. Each is used for different purposes.
Uses of Choke Coils
As mentioned above, there are four major types of choke coils depending on the application.
1. Smoothing Choke Coils
Choke coils are used to reduce the distortion of the current when AC current is converted to DC by a smoothing circuit or AC/DC converter, and to smooth the current.
2. Choke Coil for Active Filter
Used as a high-frequency countermeasure in active filters used in analog signal input circuits such as measuring instruments.
3. Choke Coil for Noise Filter
Choke coils are mounted in power supply circuits that are prone to noise inflow and used as noise countermeasures.
4. Choke Coil for Power Supply Line
Choke coils are used to match the load of RF power amplifiers and to reduce impedance resistance and losses in power supply lines.
Principle of Choke Coil
A choke coil consists of a core made of a laminated plate of silicon copper or other steel plate, around which conductors are wound in a spiral shape.
The choke coil is characterized by a higher inductance value than the coils used in general.
General coils and choke coils differ in the following characteristics:
- General coil
Easy to conduct direct current and difficult to conduct alternating current. - Choke Coil
Easy to carry DC current and low frequency AC current, and hard to carry high frequency AC current.
The reason why choke coils have the above characteristics is that they have a high inductance value and when an AC current of high frequency flows, an induced electromotive force is generated, which is opposite to the direction of the current flow, making it difficult for the current to flow.
When used as an active filter or for noise suppression, external noise that attempts to flow into a measurement device from its input terminal or power supply terminal of a power circuit has a high frequency. Choke Coils are often used in such applications because they can block high-frequency noise.
Other Information on Choke Coils
1. About Toroidal Coils
Choke Coils are often made by winding a conductor around a doughnut-shaped magnetic core, unless they are ultra-compact chip components, such as those used in smartphones. This is called a toroidal coil and can confine the magnetic flux in a closed loop (right-hand thread law). The advantage of toroidal coils is that they can achieve a larger inductance in a smaller size by utilizing this confined magnetic flux.
Important factors for inductor characteristics include Q-value and maximum allowable current. Based on the recent demand for compact, high-density packaging, manufacturers are competing to improve these inductor characteristics while reducing the size of the inductors.
2. Material of Magnetic Core
Various materials are used for the magnetic core of a choke coil, including laminated steel plates. One of the most commonly used magnetic core materials is ferrite material, which can be broadly classified into nickel-based and manganese based materials.
Nickel-based ferrite materials have very high insulation properties and are often used at high frequencies above 100 MHz.
Manganese-based ferrite materials are inexpensive and have high magnetic permeability and saturation flux density, and are often used in common mode chokes for low-frequency power lines.
List of 2 Choke 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
- United States of America
-
-
-
Coilcraft Inc.
Common Mode Chokes
Company Overview
Coilcraft was founded in 1945 and is headquartered in Cary, Illinois. The company is a designer, manufacturer, and distributor of high-performance magnetic components for industries including automotive and computing. The company’s standard products include power devices such as inductors, RF devices, transformers, and EMI components. The company’s automotive division offers transformers, inductors, chokes, and filters operation down to -40 degrees. The company also offers design tools to help customers understand the correct product for their needs and optimum system operational parameters.
-
-
-
-
-
Ueno Co., Ltd
Choke Coil
Manufacturer Overview
Ueno Co., Ltd., established in 1982 with headquarters in Tsuruoka City, Japan, is a manufacturer specializing in noise suppression electronic components. The company's product line includes noise filter coils, smoothing and boosting chokes, coils, and Ferrite cores. The components are used in electronic and electric devices for radiation noise suppression, modulating power supply, absorbing power current noise, and keeping interference in as well as out for such products as USB charging cables, audio/visual signaling equipment, conveyors, and elevators. The company serves industries including automotive, consumer products, energy supply, medical, and agriculture.
-
-
Choke Coil Manufacturer Ranking
*Including some distributors, etc.Ranking as of April 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Coilcraft Inc. |
66.7%
|
| 2 | Ueno Co., Ltd |
33.3%
|
Derivation Method
The ranking is calculated based on the click share within the choke 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
Newly Established Company
- Coilcraft Inc.: 1945 (79 years ago)
Company with a History
- Coilcraft Inc.: 1945 (79 years ago)
Choke Coil Manufacturers in United States
*Including some distributors, etc.
Global Distribution of Choke Coil Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
United States of America
|
1 | 100.0% |
List of Choke Coil Products
7 products are listed.
United Electronics Co., Ltd.
High saturated current class R inductance special shape chalk coil
■ Properties ・ The structure is complicated, automatic peeling and winding molding ・ High saturated current ・ Russia drawer pin ■ Use of produc...
United Electronics Co., Ltd.
Low -cost chalk coil R high -current chalk inductance R series
■ Properties ・ Easy structure, automatic peeling and winding molding ・ Low -cost chalk coil ・ High saturated current ・ Tin -sunged drawer pin ...
United Electronics Co., Ltd.
Low -cost choke coil vehicle oil pump component inductance RFI series
■ Characteristics ・ The structure is complicated, automated peeling, winding molding, spot welding, injection molding ・ Low -cost chalk coil ■ P...
