Ferrites Beads & Cores

Minimize electromagnetic interference (EMI) and ensure signal integrity with our selection of ferrite beads and cores. Ferrite beads provide high impedance at high frequencies, suppressing noise and preventing unwanted signals from propagating along conductors. Commonly used in power supplies, cables, and electronic circuits, ferrite beads effectively filter out EMI generated by switching regulators, digital circuits, and RF transmissions. Ferrite cores, on the other hand, are used in inductors and transformers to increase inductance and reduce EMI emissions. Whether you’re designing sensitive analog circuits or high-speed digital systems, our ferrite beads and cores help you achieve reliable performance and compliance with electromagnetic compatibility (EMC) standards.

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Ferrite Beads

Ferrite Cores

Toroidal Cores

E-Core and EFD-Corees Beads & Cores - 3

U-Core and UI-Core

Rod-Core and Pot-Core

Bead Cores

Chip Beads

Multi-Aperture Cores

Balun Cores

Types of Ferrites Beads & Cores

  1. Ferrite Beads: Ferrite beads are passive electronic components used to suppress high-frequency noise in electronic circuits. They are typically cylindrical or bead-shaped and made from ferrite material. Ferrite beads are available in various sizes and impedance values to suit different applications.

  2. Ferrite Cores: Ferrite cores are magnetic cores made from ferrite material and used in transformers, inductors, and electromagnetic interference (EMI) suppression applications. Ferrite cores come in different shapes and sizes, including toroidal, cylindrical, and E-shaped cores, and are often used to increase inductance and reduce electromagnetic interference.

  3. Toroidal Cores: Toroidal cores are donut-shaped ferrite cores used in transformers and inductors due to their efficient magnetic coupling and low electromagnetic radiation characteristics. They offer high inductance and are commonly used in power supplies and audio equipment.

  4. E-Core and EFD-Core: E-shaped ferrite cores, also known as E-cores or EFD-cores, are widely used in transformers and inductors for their compact size and efficient magnetic properties. They consist of two outer legs and a center core, providing high winding space utilization and excellent magnetic coupling.

  5. U-Core and UI-Core: U-shaped ferrite cores, also known as UI-cores or U-core assemblies, are used in transformers and inductors to improve magnetic flux distribution and reduce magnetic losses. They consist of a U-shaped core with a bobbin or winding space in the center.

  6. Rod-Core and Pot-Core: Rod-shaped ferrite cores, also known as pot cores or rod cores, are used in inductors, chokes, and transformers for their high magnetic permeability and low losses. They are typically cylindrical or rectangular in shape and provide high inductance with low winding resistance.

  7. Bead Cores: Ferrite bead cores are cylindrical ferrite cores with a hole through the center, used to suppress high-frequency noise in cables and wires by acting as a low-pass filter. They are commonly used in applications such as power supply lines, data cables, and signal cables.

  8. Chip Beads: Chip ferrite beads are surface-mount components used to suppress high-frequency noise in electronic circuits on printed circuit boards (PCBs). They are available in various sizes and impedance values and are commonly used in digital and RF circuits, as well as power supply lines.

  9. Multi-Aperture Cores: Multi-aperture ferrite cores are ferrite cores with multiple holes or apertures, used in EMI suppression filters and noise suppression applications. They provide high impedance over a broad frequency range and are suitable for suppressing common-mode and differential-mode noise.

  10. Balun Cores: Balun ferrite cores are used in balun transformers to convert between balanced and unbalanced signals in RF and microwave circuits. They consist of two or more windings on a ferrite core and are used in applications such as antennas, mixers, and modulators.


  1. Fair-Rite Products Corp.
  2. TDK Corporation
  3. Laird Performance Materials
  4. Murata Manufacturing Co., Ltd.
  5. Taiyo Yuden Co., Ltd.
  6. Würth Elektronik
  7. Vishay Intertechnology, Inc.
  8. Panasonic Corporation
  9. Bourns, Inc.
  10. Ferroxcube International Holding B.V.
  11. EPCOS AG (a TDK Group Company)
  12. KEMET Corporation
  13. API Technologies Corp.
  14. Delta Electronics, Inc.
  15. Hitachi Metals, Ltd.
  16. Sumida Corporation
  17. Pulse Electronics Corporation
  18. J.W. Miller Magnetics
  19. Elna Co., Ltd.
  20. Tokin Corporation

Frequently Asked Questions about Ferrite Beads & Cores

We offer a variety of ferrite beads and cores for noise suppression, signal integrity, and power applications.

Selection depends on factors like impedance, current rating, and frequency range. Our detailed product specifications can help guide your choice.

Ferrite beads and cores are commonly used in power supplies, RF circuits, and EMI suppression.

Yes, our technical support team is available to help you select and integrate ferrite beads and cores into your designs.

Yes, we offer custom solutions to meet specific application requirements. Contact our team to discuss your needs.

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