General Purpose Inductors, Coils, and Chokes
Description
General purpose inductors, coils, and chokes are passive electrical components that store energy in a magnetic field when electric current flows through them. They are primarily used to manage the flow of electrical energy in circuits by providing inductance, which is the property of resisting changes in current.
Working Principle
Inductors, coils, and chokes operate on the principle of electromagnetic induction. When an electric current passes through the coil, it generates a magnetic field around it. This magnetic field, in turn, induces a voltage that opposes changes in the current flowing through the coil. This property makes them useful for filtering, energy storage, and managing current flow in various electrical circuits. The inductance of a coil is determined by factors such as the number of turns in the coil, the core material, and the coil's geometry. Ferromagnetic materials like iron can significantly increase the inductance by concentrating the magnetic field lines.
Applications
Inductors, coils, and chokes are used in a wide range of applications. In audio and sound processing, they are found in automotive stereo systems, line and noise filters, and handheld audio systems . In industrial and commercial equipment, they are used in battery-powered devices, industrial controllers, TV and radio receivers, and switching regulators . Common-mode choke coils are particularly useful for preventing electromagnetic interference (EMI) and radio frequency interference (RFI) from power supply lines .
Advantages over other Inductors, Coils, and Chokes
Toroidal cores offer more inductance for a given core material and number of turns compared to solenoidal cores, making them advantageous in applications where space is limited . They also provide a high level of inductance for the physical space occupied, which can be beneficial in compact electronic designs.
Limitations
One limitation of general-purpose inductors, coils, and chokes is their sensitivity to core material properties. The choice of core material can significantly affect performance, and not all materials are suitable for all applications. Additionally, they can be bulky and heavy, which may not be ideal for all designs, especially in portable or space-constrained applications.
Considerations
When selecting inductors, coils, and chokes, several factors should be considered to ensure optimal performance. These include the initial cost, operating expenses, durability, accuracy, and maintenance costs. The choice of core material, such as iron or ferrite, can impact the inductance and efficiency of the component . Mounting options, such as through-hole or surface-mount technologies, and lead types, such as axial or radial, should also be considered based on the specific application requirements .
from RS Components, Ltd.
6 hole ferrite beads 2x1.5wdg 5A Z512Ohm [See More]
- Application: General Purpose; General Electronics
- Lead Style: Axial
- Core Material: Ferrite
- Standards and Certifications: RoHS
from ODG (Origin Data Global)
General Purpose Inductor, 0.0022 [See More]
- Application: General Purpose
from RS Components, Ltd.
SMD EMC ferrite filter,200mA 800ohm max [See More]
- Application: General Purpose; General Electronics
- Standards and Certifications: RoHS
- Core Material: Ferrite
- EIA Case Size: 0805 (2012M)
from RS Components, Ltd.
Ferrite bead SMD 0603 330R [See More]
- Application: General Purpose; EMI Suppression Filter, GHz Band General Use (Low DC Resistance Type)
- Standards and Certifications: RoHS
- Core Material: Ferrite
- EIA Case Size: 0603 (1608M)
from Hangzhou X-mag Inc.
Common mode inductors serve a variety of essential functions across different applications areas, including high-frequency switching power supplies, household appliances, 5G communication technology, UPS power supplies, new energy vehicles, and charging stations.: • Power Filtering: Common... [See More]
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Application: General Purpose; High Current; High Frequency; Power Choke;
Applications：General Purpose; High Current; High Freqency; Power Inductor; Other
from Schaffner EMC Inc.
Schaffner provides inductors for automotive DC-DC converters for various range of power. Schaffner inductors are combining innovative winding design with carefully selected core materials to achieve optimized construction with maximal power density, low losses and robust mechanical design. Schaffner... [See More]
- Application: General Purpose
- Lead Style: Tab
- Mounting Option: Through Hole
- Inductance Range: 10 to 1500
from Coilcraft CPS
bull; Designed for use in extremely high-temperature applications, up to 300 °C. • Suitable for use in down-hole applications and on-engine automotive applications. Coilcraft CPS offers coils suitable for use in extremely high temperature applications. Comprising high grade materials... [See More]
- Application: General Purpose
- Technology: Wirewound
- Mounting Option: Down-hole, On-engine Applications
- Core Material: Ferrite
from RCD Components, Inc.
RADIAL LEAD INDUCTORS. Low cost. Radial lead space-saving design. See RS1014 for shielded design [See More]
- Application: General Purpose
- Technology: Bobbin
- Mounting Option: Through Hole
- Lead Style: Radial
from Trigon Components, Inc.
SERIES. EBLTT. DESCRIPTION. Design to Fit, High Stability. IMPEDANCE RANGE. 2 to 10db. CURRENT RATING. FREQUENCY. 5MHz to 1300MHz. PACKAGE. TH. FEATURE. •Pair wire coil for high stability. [See More]
- Application: General Purpose
- Technology: Toroid
- Mounting Option: Through Hole
- Lead Style: Radial
from EPCOS AG
The development, manufacture and marketing of electronic components, modules and systems represents the largest business segment of the TDK Group. TDK focuses on demanding markets in the areas of information and communication technology and consumer, automotive and industrial electronics. Electronic... [See More]
- Application: Common Mode Choke; General Purpose
- Lead Style: Radial; None
- Mounting Option: Through Hole; Surface Mount Technology
- Standards and Certifications: RoHS
from RCD Components, Inc.
GENERAL PURPOSE EPOXY COATED INDUCTORS. Widest selection in the industry!. Delivery typically from stock. Premium grade materials enable high current, SRF, Q, and temperature ratings. Low cost due to automated production [See More]
- Application: General Purpose
- Technology: Standard
- Mounting Option: Through Hole
- Lead Style: Axial
from Trigon Components, Inc.
SERIES. EBS. DESCRIPTION. Design to Fit, High Stability. IMPEDANCE RANGE. CURRENT RATING. FREQUENCY. 0.6MHz to 3300MHz. PACKAGE. SMD. FEATURE. •Pair and triple wire coil for high stability high balance. [See More]
- Application: General Purpose
- Technology: Toroid
- Mounting Option: Surface Mount Technology
- Lead Style: None
from RCD Components, Inc.
MOLDED WIREWOUND CHIP INDUCTORS. Molded construction, excellent environmental performance. 1210 and 1812 sizes available from stock. Ferrite core, wirewound construction. Intermediate values, increased current, Q, & SRF available [See More]
- Application: General Purpose
- Technology: Wirewound
- Mounting Option: Surface Mount Technology
- Core Material: Ferrite
from Trigon Components, Inc.
SERIES. ETCM. DESCRIPTION. Compact, Signal Line. IMPEDANCE RANGE. 30 to 2200 Ohm. CURRENT RATING. 80 to 450mA. FREQUENCY. 100MHz. PACKAGE. SMD 0805 to 1206. FEATURE. •2-line type. •Small Size, Surface Mount. •Highly effective in noise suppression. High common-mode impedance at signal... [See More]
- Application: General Purpose
- Technology: Standard
- Mounting Option: Surface Mount Technology
- Lead Style: None
from RCD Components, Inc.
SHIELDED HIGH VALUE WIREWOUND RADIAL LEAD INDUCTOR [See More]
- Application: General Purpose
- Technology: Wirewound
- Mounting Option: Through Hole
- Lead Style: Radial
from Trigon Components, Inc.
SERIES. ICH. DESCRIPTION. Radial Choke, Raised Bottom. INDUCTANCE RANGE. 10 to 47000uH. IDC. 0.081 to 2.90A. DCR. 0.04 to 96.40ohm. PACKAGE. Radial. FEATURE. •Open magnetic circuit construction. •Low cost and high reliability. [See More]
- Application: General Purpose
- Technology: Radial
- Mounting Option: Through Hole
- Lead Style: Radial
from RCD Components, Inc.
RADIAL LEAD HIGH VALUE INDUCTORS. Electromagnetically shielded. Radial lead design offers space savings. Inductance range 1mH (1000uH) to 47mH is standard (10uH~120mH avail.). Premium grade materials enable high current, SRF, Q, & temperature ratings. Standard tolerance is 10% (5% avail.) [See More]
- Application: General Purpose
- Technology: Wirewound
- Mounting Option: Through Hole
- Lead Style: Radial
from Trigon Components, Inc.
SERIES. IPK. DESCRIPTION. Radial Choke, General Purpose. INDUCTANCE RANGE. 1 to 1000uH. IDC. 0.12 to 9A. DCR. 0.01 to 8.70ohm. PACKAGE. Radial. FEATURE. •Open magnetic circuit construction. •Low cost and high reliability. [See More]
- Application: General Purpose
- Technology: Radial
- Mounting Option: Through Hole
- Lead Style: Radial
from RCD Components, Inc.
SHIELDED WIREWOUND INDUCTORS. RCD ’s MSI Series is ideally suited for telecom, auto, audio, and power supply line applications. The magnetic shield reduces cross talk and suppresses radiation. High tempera- ture internal construction ensures optimum heat durability compatible with lead-free... [See More]
- Application: General Purpose; Power Choke
- Technology: Wirewound
- Mounting Option: Surface Mount Technology
- Lead Style: None
from Trigon Components, Inc.
SERIES. ISTD. DESCRIPTION. ISTD01 ISTD 02 ISTD03. INDUCTANCE RANGE. IDC. DCR. PACKAGE. SMD. FEATURE. •Closed magnetic circuit for lowest EMI. •High performance low loss powder iron core. •Compatible with vapor phase and infrared reflow soldering. [See More]
- Application: General Purpose; Power Choke
- Technology: Toroid
- Mounting Option: Surface Mount Technology
- Core Material: Iron
from Trigon Components, Inc.
SERIES. ISTU0718. DESCRIPTION. ISTU0718. INDUCTANCE RANGE. 1.0 to 47uH. IDC. 0.31 to 2.10A. DCR. 0.103 to 0.85ohm. PACKAGE. SMD. FEATURE. •Closed magnetic circuit for lowest EMI. •Compact and thin. •Large current and low DCR. [See More]
- Application: General Purpose; Power Choke
- Technology: Toroid
- Mounting Option: Surface Mount Technology
- Lead Style: None
from Trigon Components, Inc.
SERIES. ITGZ / ITGB. DESCRIPTION. ITGZ19 ITGB19. INDUCTANCE RANGE. IDC. DCR. PACKAGE. TH. FEATURE. •Micro gap toroid technology. •Not easy magnetic saturation. [See More]
- Application: General Purpose; Power Choke
- Technology: Toroid
- Mounting Option: Through Hole
- Lead Style: Radial
from Trigon Components, Inc.
SERIES. ITLP / ITVP. DESCRIPTION. ITLP60 ITVP60. INDUCTANCE RANGE. 150 to 1000uH. IDC. 0.50 to 1.70A. DCR. 0.21 to 1.70ohm. PACKAGE. TH. FEATURE. •To be high saturation for surface mounting.. •Large current and Low DCR. [See More]
- Application: General Purpose; Power Choke
- Technology: Toroid
- Mounting Option: Through Hole
- Lead Style: Radial