Powdered Iron Inductors, Coils, and Chokes
Description
Powdered iron inductors, coils, and chokes are components used in electrical circuits to manage and control the flow of electrical energy. They are designed to store energy in a magnetic field when electrical current passes through them. These components are typically made from iron powder mixed with a binder material, which is then pressed and baked into the desired shape. The powdered iron core increases the inductance of the coil, allowing it to effectively manage electrical energy.
Working Principle
Powdered iron inductors work by utilizing the magnetic properties of iron powder to enhance the inductance of a coil. The iron powder is mixed with a binder and formed into a core, which is then wound with wire to create the inductor. The granular nature of the powdered iron allows for a uniform distribution of air gaps within the core, leading to consistent permeability and core loss across a range of frequencies. This makes powdered iron inductors particularly useful in applications where core loss must be minimized, as they can maintain a predictable inductance even when the current load increases significantly .
Applications
Powdered iron inductors, coils, and chokes are commonly used in various applications, including filter reactors, interference reduction filters, and saturable reactors. They are particularly useful in power electronics, where they help to smooth out voltage and current fluctuations, reduce electromagnetic interference, and improve the overall efficiency of electrical systems .
Advantages over other Inductors, Coils, and Chokes
One of the primary advantages of powdered iron inductors over other types is their ability to maintain a fairly constant permeability and core loss across a wide range of frequencies. This is due to the uniform distribution of air gaps within the powdered iron core, which helps to prevent sudden drops in inductance as the current load increases. Additionally, powdered iron cores are less prone to saturation compared to gapped ferrite cores, making them more reliable in high-current applications .
Limitations
Despite their advantages, powdered iron inductors do have some limitations. They may not be suitable for applications requiring very high-frequency operation, as the core material can exhibit higher losses at these frequencies. Additionally, the initial cost of powdered iron inductors can be higher compared to other types, such as silicon steel core inductors, due to the specialized processing required to create the powdered iron core .
Considerations
When selecting powdered iron inductors, it is important to consider factors such as initial costs, operating expenses, durability, and maintenance requirements. While the initial cost may be higher, the durability and reliability of powdered iron inductors can lead to lower operating expenses over time. Additionally, their ability to maintain consistent performance across a range of frequencies can reduce the need for frequent replacements and maintenance, further offsetting the initial investment .
from ODG (Origin Data Global)
FIXED IND 10UH 1A 460 MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Wirewound; Drum Core, Wirewound
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 10
from Coilcraft, Inc.
AEC-Q200 qualified; Ideal for a variety of automotive applications. 75% smaller than previous generation. Very low DCR maintains high efficiency. Soft saturation with high current handling capability. Magnetic shielding reduces power losses at high frequency. Ideal for Bi-directional 12 V – 48... [See More]
- Core Material: Powdered Iron; Powdered Iron
- Packing Method: Tray
- Application: Power Choke
- Standards and Certifications: RoHS
from DigiKey
10 µH Shielded Toroidal Inductor 11.2A 14mOhm Max Radial, Vertical (Open) [See More]
- Core Material: Powdered Iron
- Technology: Toroid
- Mounting Option: Through Hole
- Lead Style: Radial
from RS Components, Ltd.
Wurth Elektronik 7448990010 [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- EIA Case Size: 1090
- Standards and Certifications: RoHS
- Inductance Range: 1
from ODG (Origin Data Global)
FIXED IND 1.5UH 2.1A 108MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Wirewound; Drum Core, Wirewound
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 1.5
from Coilcraft, Inc.
Coilcraft MA5172/3-AE, PA6331-AE toroidal power chokes were designed for Class-D applications. Low distortion chokes used in Texas Instrument ’s TPA3251D2 PurePath Ultra-HD, TAS5612/14PHD2EVM, TAS5612PHD and TAS5614PHD evaluation modules. Designed for use in Class-D amplifiers. [See More]
- Core Material: Powdered Iron; Powdered Iron
- Application: Power Choke
- Technology: Toroid
- Lead Style: Radial
from DigiKey
1mH Shielded Toroidal Inductor 1.9A 490mOhm Max Radial, Horizontal (Open) [See More]
- Core Material: Powdered Iron
- Technology: Toroid
- Mounting Option: Through Hole
- Lead Style: Radial
from RS Components, Ltd.
Wurth Elektronik 7448990022 [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- EIA Case Size: 1090
- Standards and Certifications: RoHS
- Inductance Range: 2.2
from ODG (Origin Data Global)
FIXED IND 4.7UH 1.2A 264MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Wirewound; Drum Core, Wirewound
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 4.7
from Coilcraft, Inc.
Coilcraft low-profile MVR Series shielded power inductors are great for high current DC-DC converters and VRM/VRD controllers. High-temperature, low-loss materials do not exhibit thermal aging. The MVR1251T is also AEC-Q200 qualified ( −40 °C to +85 °C). Very low DCR and high current... [See More]
- Core Material: Ferrite; Powdered Iron; MVRxxxT: Ferrite; MVRxxxxC: Powdered iron
- Packing Method: Tape Reel
- Application: Power Choke
- Standards and Certifications: RoHS
from DigiKey
400 µH Unshielded Toroidal Inductor 2.25A 330mOhm Max Radial, Vertical (Open) [See More]
- Core Material: Powdered Iron
- Technology: Toroid
- Mounting Option: Through Hole
- Lead Style: Radial
from RS Components, Ltd.
Wurth Elektronik 7448990033 [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- EIA Case Size: 1090
- Standards and Certifications: RoHS
- Inductance Range: 3.3
from ODG (Origin Data Global)
FIXED IND 10UH 900MA 420MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Wirewound; Drum Core, Wirewound
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 10
from Coilcraft, Inc.
The Coilcraft SPT Series of high current surface mount (SM) toroidal power inductors have very high current ratings - up to 12.2 Amps. The toroidal construction provides magnetic shielding that eliminates EMI and allows for closer component placement. Very high current ratings - up to 12.2 Amps... [See More]
- Core Material: Powdered Iron; Powered iron
- Application: Power Choke
- Technology: Toroid
- Lead Style: Radial
from DigiKey
1.5 µH Shielded Wirewound Inductor 1.9A 137mOhm Max 0806 (2016 Metric) [See More]
- Core Material: Powdered Iron; Drum Core, Wirewound
- Packing Method: Tape Reel
- Mounting Option: Surface Mount Technology
- Molded / Shielded: Shielded
from RS Components, Ltd.
Wurth Elektronik 7448990068 [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- EIA Case Size: 1090
- Standards and Certifications: RoHS
- Inductance Range: 6.8
from ODG (Origin Data Global)
FIXED IND 680UH 2.1A 230 MOHM TH [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Toroid; Toroidal
- Mounting Option: Through Hole; Through Hole
- Lead Style: Radial
from DigiKey
FIXED IND 1.5UH 2.5A 77 MOHM SMD [See More]
- Core Material: Powdered Iron; Drum Core, Wirewound
- Packing Method: Tape Reel
- Mounting Option: Surface Mount Technology
- Molded / Shielded: Shielded
from RS Components, Ltd.
Wurth Elektronik 7448990082 [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- EIA Case Size: 1090
- Standards and Certifications: RoHS
- Inductance Range: 8.2
from ODG (Origin Data Global)
FIXED IND 47UH 10A 28 MOHM TH [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Toroid; Toroidal
- Mounting Option: Through Hole; Through Hole
- Lead Style: Radial
from DigiKey
4.7 µH Unshielded Wirewound Inductor 1008 (2520 Metric) [See More]
- Core Material: Powdered Iron; Drum Core, Wirewound
- Application: RF Choke
- Mounting Option: Surface Mount Technology
- Packing Method: Tape Reel
from RS Components, Ltd.
Wurth Elektronik 7448990100 [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- EIA Case Size: 1090
- Standards and Certifications: RoHS
- Inductance Range: 10
from ODG (Origin Data Global)
FIXED IND 10UH 11A 8 MOHM TH [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Toroid; Toroidal
- Mounting Option: Through Hole; Through Hole
- Lead Style: Radial
from DigiKey
15 µH Shielded Wirewound Inductor 2.1A 190mOhm Max Nonstandard [See More]
- Core Material: Powdered Iron; Drum Core, Wirewound
- Packing Method: Tape Reel
- Mounting Option: Surface Mount Technology
- Molded / Shielded: Shielded
from RS Components, Ltd.
Wurth Elektronik 7448990150 [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- EIA Case Size: 1090
- Standards and Certifications: RoHS
- Inductance Range: 15
from ODG (Origin Data Global)
FIXED IND 82UH 7.7A 30 MOHM TH [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Toroid; Toroidal
- Mounting Option: Through Hole; Through Hole
- Lead Style: Radial
from DigiKey
680nH Shielded Wirewound Inductor 8.5A 12mOhm Max Nonstandard [See More]
- Core Material: Powdered Iron; Drum Core, Wirewound
- Packing Method: Tape Reel
- Mounting Option: Surface Mount Technology
- Molded / Shielded: Shielded
from RS Components, Ltd.
Wurth Elektronik 7448990220 [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- EIA Case Size: 1090
- Standards and Certifications: RoHS
- Inductance Range: 22
from ODG (Origin Data Global)
FIXED IND 4.7UH 11.5A 11MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Wirewound; Drum Core, Wirewound
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 4.7
from DigiKey
700nH Unshielded Wirewound Inductor 619mA 320mOhm Nonstandard [See More]
- Core Material: Powdered Iron; Drum Core, Wirewound
- Packing Method: Tape Reel
- Mounting Option: Surface Mount Technology
- Configuration: Fixed
from RS Components, Ltd.
Wurth Elektronik 7448990330 [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- EIA Case Size: 1090
- Standards and Certifications: RoHS
- Inductance Range: 33
from ODG (Origin Data Global)
FIXED IND 1UH 4A 47 MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Molded
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 1
from DigiKey
2 µH Unshielded Wirewound Inductor 494mA 650mOhm Nonstandard [See More]
- Core Material: Powdered Iron; Drum Core, Wirewound
- Packing Method: Tape Reel
- Mounting Option: Surface Mount Technology
- Configuration: Fixed
from RS Components, Ltd.
Wurth Elektronik 7448990470 [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- EIA Case Size: 1090
- Standards and Certifications: RoHS
- Inductance Range: 47
from ODG (Origin Data Global)
FIXED IND 1UH 5A 27 MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Molded
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 1
from DigiKey
100 µH Unshielded Wirewound Inductor 1A 550mOhm Axial [See More]
- Core Material: Powdered Iron; Drum Core, Wirewound
- Lead Style: Axial
- Mounting Option: Through Hole
- Packing Method: Bulk
from RS Components, Ltd.
Toroidal Line Choke WE-FI 100uH 2000mA [See More]
- Core Material: Ferrite; Iron; Powdered Iron; Ferrite, iron powder
- Technology: Toroid
- Mounting Option: Through Hole
- Lead Style: Through hole
from ODG (Origin Data Global)
FIXED IND 2.2UH 4.9A 35 MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Molded
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 2.2
from DigiKey
FIXED IND 480UH 25A 11 MOHM SMD [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Surface Mount Technology
- Configuration: Fixed
from RS Components, Ltd.
Toroidal Line Choke WE-FI 100uH 5000mA [See More]
- Core Material: Ferrite; Iron; Powdered Iron; Ferrite, iron powder
- Technology: Toroid
- Mounting Option: Through Hole
- Lead Style: Through hole
from ODG (Origin Data Global)
FIXED IND 6.8UH 3.4A 60 MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Molded
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 6.8
from DigiKey
FIXED IND 240UH 15A 38 MOHM TH [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Through Hole
- Configuration: Fixed
from RS Components, Ltd.
Toroidal Line Choke WE-FI 220uH 1000mA [See More]
- Core Material: Ferrite; Iron; Powdered Iron; Ferrite, iron powder
- Technology: Toroid
- Mounting Option: Through Hole
- Lead Style: Through hole
from ODG (Origin Data Global)
FIXED IND 4.7UH 5A 30.8 MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Molded
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 4.7
from DigiKey
FIXED IND 250UH 20A 14 MOHM SMD [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Surface Mount Technology
- Configuration: Fixed
from RS Components, Ltd.
Toroidal Line Choke WE-FI 300uH 2000mA [See More]
- Core Material: Ferrite; Iron; Powdered Iron; Ferrite, iron powder
- Technology: Toroid
- Mounting Option: Through Hole
- Lead Style: Through hole
from ODG (Origin Data Global)
FIXED IND 10UH 4.5A 51.8MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Molded
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 10
from DigiKey
FIXED IND 120UH 20A 25 MOHM TH [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Through Hole
- Configuration: Fixed
from RS Components, Ltd.
Choke Interference THT WE-FI 35uH 3A [See More]
- Core Material: Ferrite; Iron; Powdered Iron; Ferrite, iron powder
- Lead Style: Through hole
- Mounting Option: Through Hole
- Standards and Certifications: RoHS
from ODG (Origin Data Global)
FIXED IND 470NH 19A 1.6 MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Molded
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 0.4700
from DigiKey
FIXED IND 150UH 25A 10 MOHM SMD [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Surface Mount Technology
- Configuration: Fixed
from RS Components, Ltd.
Wurth Elektronik 7447028 [See More]
- Core Material: Iron; Powdered Iron; Composite iron powder
- Standards and Certifications: RoHS
- Lead Style: Lead wire
- Inductance Range: 150
from ODG (Origin Data Global)
FIXED IND 10UH 8.8A 16.5MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Molded
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 10
from DigiKey
FIXED IND 75UH 25A 18 MOHM TH [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Through Hole
- Configuration: Fixed
from RS Components, Ltd.
Wurth Elektronik 7447076 [See More]
- Core Material: Iron; Powdered Iron; Composite iron powder
- Standards and Certifications: RoHS
- Lead Style: Lead wire
- Inductance Range: 150
from ODG (Origin Data Global)
WE-FI LEADED TOROIDAL LINE CHOKE [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Toroid; Toroidal
- Mounting Option: Through Hole; Through Hole
- Inductance Range: 700
from DigiKey
FIXED IND 500UH 10A 67 MOHM TH [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Through Hole
- Configuration: Fixed
from RS Components, Ltd.
Vishay IHDM1008BCEV1R2M30 [See More]
- Core Material: Iron; Powdered Iron; Iron powder
- Lead Style: Through hole
- Mounting Option: Through Hole
- Standards and Certifications: RoHS
from ODG (Origin Data Global)
FIXED IND 10UH 825MA 420MOHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Wirewound; Drum Core, Wirewound
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 10
from DigiKey
FIXED IND 500UH 15A 39 MOHM SMD [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Surface Mount Technology
- Configuration: Fixed
from RS Components, Ltd.
Ferrite toroidal core 26 [See More]
- Core Material: Ferrite; Iron; Powdered Iron; Iron Powder
- Standards and Certifications: RoHS
- Technology: Toroid
from ODG (Origin Data Global)
FIXED IND 250UH 10A 27 MOHM TH [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Toroid; Toroidal
- Mounting Option: Through Hole; Through Hole
- Lead Style: Radial
from DigiKey
FIXED IND 800UH 20A 23 MOHM SMD [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Surface Mount Technology
- Configuration: Fixed
from RS Components, Ltd.
Roxburgh EMC SF1120 Toroidal Inductor [See More]
- Core Material: Iron; Powdered Iron; Composite iron powder
- Lead Style: Flying; Flying leads
- Technology: Toroid
- Standards and Certifications: RoHS
from ODG (Origin Data Global)
FIXED IND 20UH 1.8A 82.9 MOHM TH [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Toroid; Toroidal
- Mounting Option: Through Hole; Through Hole
- Lead Style: Radial
from DigiKey
FIXED IND 1MH 10A 75 MOHM SMD [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Surface Mount Technology
- Configuration: Fixed
from RS Components, Ltd.
Open toroidal choke,4mH 250W [See More]
- Core Material: Iron; Powdered Iron; Composite iron powder
- Lead Style: Lead wire
- Technology: Toroid
- Standards and Certifications: RoHS
from ODG (Origin Data Global)
FIXED IND 20UH 16A 7 MOHM TH [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Toroid; Toroidal
- Mounting Option: Through Hole; Through Hole
- Lead Style: Radial
from DigiKey
FIXED IND 1.35MH 15A 29 MOHM SMD [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Surface Mount Technology
- Configuration: Fixed
from RS Components, Ltd.
Roxburgh EMC SF1122 Toroidal Inductor [See More]
- Core Material: Iron; Powdered Iron; Composite iron powder
- Lead Style: Flying; Flying leads
- Technology: Toroid
- Standards and Certifications: RoHS
from ODG (Origin Data Global)
FIXED IND 4.7UH 650MA 0.438OHM [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Wirewound; Drum Core, Wirewound
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 4.7
from DigiKey
FIXED IND 1.4MH 25A 30 MOHM SMD [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Surface Mount Technology
- Configuration: Fixed
from RS Components, Ltd.
Roxburgh EMC SF1123 Toroidal Inductor [See More]
- Core Material: Iron; Powdered Iron; Composite iron powder
- Lead Style: Flying; Flying leads
- Technology: Toroid
- Standards and Certifications: RoHS
from ODG (Origin Data Global)
FIXED IND 10UH 600MA 0.88OHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Wirewound; Drum Core, Wirewound
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 10
from DigiKey
FIXED IND 1.25MH 5A 126 MOHM TH [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Through Hole
- Configuration: Fixed
from RS Components, Ltd.
Wurth Elektronik 744787150 [See More]
- Core Material: Iron; Powdered Iron; Composite iron powder
- EIA Case Size: 7850
- Standards and Certifications: RoHS
- Molded / Shielded: Shielded
from ODG (Origin Data Global)
FIXED IND 10UH 900MA 0.6OHM SMD [See More]
- Core Material: Iron; Powdered Iron; Iron Powder
- Technology: Wirewound; Drum Core, Wirewound
- Mounting Option: Surface Mount Technology; Surface Mount
- Inductance Range: 10
from DigiKey
FIXED IND 2MH 20A 49 MOHM SMD [See More]
- Core Material: Powdered Iron; Carbonyl Powder
- Packing Method: Box
- Mounting Option: Surface Mount Technology
- Configuration: Fixed
from RS Components, Ltd.
Wurth Elektronik 74437324022 [See More]
- Core Material: Iron; Powdered Iron; Composite iron powder
- Standards and Certifications: RoHS
- Technology: Wirewound
- EIA Case Size: 4020
from Premier Magnetics, Inc.
FEATURES. Powdered Iron Toroidal Construction. Optimized For Use as High Frequency DC Chokes. Temp Rise Data: Ripple Currents <10% @ 100KHz. Low Cost Self Lead Construction [See More]
- Core Material: Powdered Iron
- Technology: Toroid
- Mounting Option: Through Hole
- Application: Power Choke