A coil is an inductive component designed to limit variations in the current flowing through it. It consists of a wire conductor wrapped around a magnetic core.
Coils are used in electronics, electrical installations and in automobiles.
The coil is wrapped around a ferrite torus or an air core. Its inductive value depends on the number of turns and the magnetic permeability of the core. It filters signals or constitutes part of an oscillating circuit in electronics. When used as a choke coil, it filters high-frequency electromagnetic interference (EMI). Common mode coils block current surges toward ground, thus preventing overvoltages.
Shunt coils compensate capacitive current in transmission lines or electrical networks. Other single- or three-phase coils smooth electrical line voltage by suppressing harmonics. Choke coils protect power-factor correction capacitors in electric motors. High power causes electrical losses in coils. To counter this, they can be ventilated, have a cooling system or sit in an oil bath.
Ignition coils supply the spark to ignite the air-fuel mixture in the cylinder of an internal combustion engine.
Coils are rated in Henrys, by maximum current and overvoltage capacity, by series resistance and band width.
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Shielded SMD power inductor for electronics 10 - 1000 µH max. 14.5 A | MSD1583 Series Coilcraft
Shielded coupled inductors for Flyback, SEPIC and other applications See Selecting inductors...
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Shielded SMD power inductor for electronics 1 000 µH, 0.14 A | 29L105C Murata Power Solutions
The 2900L series is a lower profi le version of our 2900 series range of bobbin-wound, shielded inductors. They are suitable for power-line...
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Chip inductor for electronics Murata Electronics
Murata has various chip inductors for every applications such as power circuits and...
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Ignition coil Delphi Power Train
Delphi Multi-Charge Ignition is an ignition control feature that fires a specially designed coil multiple times to extend spark duration and increase spark energy. It is designed to support the industry's newest advanced lean burn and stratified...
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Encapsulated coil / electromagnet SIRAI
ENCAPSULATED COILS These coils have a natural application in the field of solenoid valves for the most varied sectors. The range is composed of numerous types, with different dimensions, powers, materials and electrical connections. The standard versions and the availability of developing new ones, allow optimum solutions...
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Custom induction coil Fluxtrol, Inc.
Application: Case Harden S-Cam and Shaft Original Concentrator: None Problem / Failure Mode: Extended Cycle Times / Loss of Pattern Control Power...
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Inductor for electronics 62000, 63000, 64000, 65000 Series Pico Electronics
Ultra-miniature HIGH "Q" Inductors Specifications: * Inductance Tolerance ± 4% at 0.1V-100KHZ * Inductance Stability vs. Temperature...
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SMD power inductor for electronics 12 x 12 x 9 mm | SDRH series Shaanxi Shinhom Enterprise Co.,Ltd
Silver surface plated power chip inductor High-current chip inductor Low-resistance chip inductor Small profile chip inductor SMD power choke coil SMD power inductor SMD common...
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High performance ignition coil 06.50.104 MOTORTECH GmbH
P/N 06.50.104 New MOTORTECH Style Non CSA Certified Ignition Coils Standard Versions New MOTORTECH Style Ignition coils are becoming more and more important in modern,...
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Inductor for electronics 0.2 uH -10 H, max.100 A ITACOIL trasformatori
Power inductors and EMI/EMC suppression chokes Common...
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Power chip inductor for electronics 1 - 470 nH, 900 mA Taiyo Yuden Europe
Features: -Multilayer inductor made of advanced ceramics with low-resistivity silver used as internal conductors provides...
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Encapsulated coil / electromagnet IP 65 REGADA
Coil power: 3,8 - 33 [VA]; 2,4 - 25 [W] Duty factor: 100 [%] Insulation...
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Common mode EMI suppression inductor for electronics Tianjin Huigao Magnetics Co.,Ltd
UF 10.5 series: Rated Voltage: AC/DC 250V Withstand Voltage: AC2KV 1MIN Insulation Resistance:...
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Demagnetizing coil Eriez Magnetics Europe Limited
Custom engineered electromagnetic units for demagnetising natural magnetite materials in slurry flowing...
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Custom engineered electromagnetic units for demagnetising natural magnetite materials in slurry flowing...
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RF inductor for electronics 1 - 100000 µH | B82144F Epcos
LBC chokes, axial leaded Rated inductance 1 100000 μH Rated current 20 2500 mA Construction ■...
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Portable Helmholtz coil system 20x20x20 cm | HH-Series STL Systemtechnik
Examples for the use of a Helmholtz Coil system: - generation of a 3 dimensional homogenous...
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Encapsulated coil / electromagnet HYDRAFORCE
For proportional valves, performance depends on the current in the coil. Coil current is a function of the applied voltage and the resistance in the coil. Increasing voltage will increase the current level while increasing resistance will decrease...
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Demagnetizing coil 550 x 550 mm SAV Spann- Automations- Normteiletechnik GmbH
After operation, steel and casted workpieces can have restmagnetism, which can be quite disturbing. When these parts need to be demagnetized prior to further usage,...
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RFID transponder coil TP0702U PREMO CORPORATION
This TP0702 Series of Surface Mountable ferrite wound inductor is a stronger solution in very small dimensions performing very good electrical properties, a very good solution for RTPMS , Keyless Go and Keyless entry systems: Size: 8x2.2x2.5mm....
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High current inductor for electronics 2.7 - 100 000 µH | HL Series RCD Components Inc
Low price, wide selection, 2.7μH to 100,000μH, up to 15.5A Option ER Military Screening: per MIL-PRF-15305...
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Trigger coil for flash tube Eubon Products Co., Ltd
Using high quality wires and sealing techniques, the...
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Ignition coils The experience that Comelit has matured over the years in the field of windings has allowed us to introduce...
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Common-mode power choke coil 10 - 280 A, 500 V | FIN900 FINMOTOR
Common mode impedance Rated currents...
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Shielded SMD power inductor for electronics 0.47 - 330 μH | NPIS_LS series NIC Components
NPIS_LS Series Features: RESIN SHIELDED POWER...
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Magnetically shielded Flat wire coil for low losses at high frequency Low stray field Operating...
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Coil for electronics HAHN - Elektrobau GmbH
HAHN has gained a niche in the market as a reliable supplier of application-oriented special trnasforer coils. Our customer contact staff are exceedingly well motivated and contibute extensively to the success of the business. HAHN is already able to produce special transformer coils in all the various constructions types to consumer specifications. HAHN will work together with the customer...
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Inductor for electronics Taiyo Yuden
There is no stopping the evolution of digital products such as personal computers, mobile phones, and smart appliances, and similarly, the need for having small size, thin type, and high performance...
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Inductor for electronics TDK Electronics Europe
TDK's inductors come in two types: the multilayer type and the wire-wound type. The multilayer type provides high inductance and high Q characteristics...
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Air-core inductor for electronics 10 nH - 10 μH | QK KOA
AIR CORE INDUCTORS KQ - Air-Core Chip Inductors Features: - Small chip inductors with air-core and wire wound for frequency equipment. - High Q and high self-resonant...
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Chip inductor for electronics 800 MHz - 3.4 GHz | WL series American Technical Ceramics
ATC's family of RF surface mount inductor components is intended to complement its high frequency ultra low ESR capacitor products. The WL Series wire...
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SMD power inductor for electronics max. 1.5 mH | 0087 Shenzhen Okerda Science & Technologny
The Surface Mount Inductors are superior to be high saturation for large current. Low profile, low cost and high performance. Available on tape and reel for automatic insertion....
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RF inductor for electronics Johanson Technology
RF Ceramic Chip Inductors: Multilayer ceramic inductors (MLCI) used primarily in portable wireless products and RF circuits. These products...
