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What is a Power Inductor?

Power inductors are important in applications where voltage conversion is necessary because they yield lower core losses. Power inductors are also used in order to store energy, provide lower signal loss in system design and filter EMI noise. A power inductor is an electronic component which receives as well as stores electrical energy by using a magnetic field. This magnetic field is usually created with a tightly coiled conductive wire. A power inductor maintains a steady current in an electrical circuit with a varying current and/or voltage.

Types of Power Inductors

There are many different kinds of power inductors. At Future Electronics we stock many of the most common types categorized by DC Resistance, Nominal Inductance, Tolerance, Maximum Rated Current, Case Size/Dimension, Packaging Type and Shielding. The parametric filters on our website can help refine your search results depending on the required specifications.

The most common values for Nominal Inductance are 4.7 µH, 10 µH and 22 µH. We also carry power inductors with Nominal Inductance up to 100 µH. DC Resistance can have a range between 0.0298 mΩ and 32 kΩ, with the most common power inductors having a DC Resistance of 20 mΩ or 40 mΩ.

Power Inductors from Future Electronics

Future Electronics has a full power inductor selection from several manufacturers that can be used to design a power supply inductor, high power inductors, SMD (surface mount) power inductors, high current inductor or for any circuit that may require a power inductor. Simply choose from the power inductor technical attributes below and your search results will quickly be narrowed in order to match your specific power inductor application needs.

If you have a preferred brand, we deal with several semiconductor manufacturers such as Cooper Bussmann, NIC Components, Sumida Electronics, TDK or Vishay, among other manufacturers. You can easily refine your power inductor product search results by clicking your preferred power inductor brand below from our list of manufacturers.

Applications for Power Inductors:

Power inductors have three main applications:

  • Conducted EMI noise filter in AC inputs
  • Low pass frequency noise filter for low frequency ripple current noise
  • Energy storage in DC-to-DC converters.

SMD (surface mount) power inductors are used in order to store energy while filtering EMI currents with a low-loss inductance in applications where voltage conversion is performed.

Choosing the Right Power Inductor:

When you are looking for the right power inductors, with the FutureElectronics.com parametric search, you can filter the results by various attributes: by Tolerance (± 35 %, ± 30 %, ± 20 %,…), Maximum Rated Current (650 µA, 800 mA , 1.5 A,…) and Nominal Inductance (from 0.4 nH to 100 µH) to name a few. You will be able to find the right power inductor to design high power inductors, a power supply inductor, SMD (surface mount) power inductors or high current inductor.

Power Inductors in Production Ready Packaging or R&D Quantities

If the quantity of power inductors that you require is less than a full reel, we offer customers many of our power inductor products in tube, tray or individual quantities that will help you avoid unneeded surplus.

In addition, Future Electronics offers clients a unique bonded inventory program that is designed to eliminate potential problems that could arise from an unpredictable supply of products containing raw metals and products with long or erratic lead times. Talk with your nearest Future Electronics branch and find out more on how you can avoid possible shortages.




Featured Power Inductor Products


Manufacturer Part Number Description
Cooper Bussmann DR127-151-R DR Series 150 uH ±20 % Tolerance 1.59 A Shielded SMT High Power Inductor
Cooper Bussmann DR127-102-R DR Series 1000 uH ±20 % Tolerance 0.61 A Shielded SMT High Power Inductor
Cooper Bussmann DR127-330-R DR Series 33 uH ±20 % Tolerance 3.23 A Shielded SMT High Power Inductor
Cooper Bussmann UP2UC-100-R UP2UC series 10 uH 20 % 3.9 A SMD Power Inductor
Cooper Bussmann UP5-221-R UP5 Series 220uH 20% 1.2A Power Inductor
NIC Components NPI31W470MTRF NPI_W Series 47 uH ±20 % Tolerance 1.8 A Unshielded SMT Power Inductor
NIC Components NPIS27H680LTRF NPIS_H Series 68 uH ±15 % Tolerance 2.1 A Shielded SMT Power Inductor
NIC Components NPI52W680MTRF NPI_W Series 68 uH ±20 % Tolerance 2.3 A Unshielded SMT Power Inductor
Sumida Electronics CDRH6D28NP-100NC CDRH Series 10 uH 30 % Tolerance 1.7 A Shielded Surface Mount Power Inductor
Sumida Electronics CDRH6D28NP-330NC CDRH Series 33 uH 30 % Tolerance 0.97 A Shielded Surface Mount Power Inductor
Sumida Electronics CDRH6D28NP-220NC CDRH Series 22 uH 30 % Tolerance 1.2 A Shielded Surface Mount Power Inductor
Sumida Electronics CDR7D28MNNP-220NC CDR Series 22 uH 25 % Tolerance 1.65 A Shielded Surface Mount Power Inductor
Sumida Electronics CDRH6D28NP-5R0NC CDRH Series 5 uH 30 % Tolerance 2.4 A Shielded Surface Mount Power Inductor
Sumida Electronics CDRH124NP-330MC CDRH Series 33 uH 20 % Tolerance 2.7 A Shielded Surface Mount Power Inductor
Sumida Electronics CDRH127/LDNP-100MC CDRH Series 10 uH 20 % Tolerance 6.7 A Shielded Surface Mount Power Inductor
Sumida Electronics CR75NP-331KC CR Series 330 uH 10 % Tolerance 0.4 A Surface Mount Power Inductor
Sumida Electronics CEP125NP-5R6MC-H CEP Series 5.6 uH 20 % Tolerance 9.5 A Surface Mount Power Inductor
Sumida Electronics CDRH104RNP-100NC CDRH Series 10 uH 30 % Tolerance 4.4 A Shielded Surface Mount Power Inductor
Sumida Electronics CDRH127NP-180MC CDRH Series 18 uH 20 % Tolerance 3.9 A Shielded Surface Mount Power Inductor
TDK SLF7032T-101MR45-2-PF SLF Series 7 x 7 mm 100 uH ±20 % Tolerance 0.45 A Shielded SMT Power Inductor
TDK GLFR1608T4R7M-LR GLFR Series 0603 4.7 uH ±20 % Tolerance 110 mA Shielded SMT Power Inductor
TDK SLF10145T-150M2R2-PF SLF Series 10.1 x 10.1 mm 15 uH ±20% Tolerance 2.4 A Shielded SMT Power Inductor
Vishay IHLP1616BZERR47M11 IHLP Series 0.47 uH 5.6 A ±20 % Shielded Low Profile High Current SMT Inductor
Vishay IHLP2525CZER3R3M01 IHLP Series 3.3 uH 6 A ±20 % Shielded Low Profile High Current SMT Inductor
Vishay IHLP2525CZER4R7M01 IHLP Series 4.7 uH 5.5 A ±20 % Shielded Low Profile High Current SMT Inductor

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