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Ferrite Beads and Chips

Image Part Number Description / PDF Quantity Rfq
28C0236-0DW-10

28C0236-0DW-10

Laird - Performance Materials

FERRITE BEAD 460 OHM AXIAL 1LN

2425
LI0201C121R-10

LI0201C121R-10

Laird - Performance Materials

FERRITE BEAD 120 OHM 0201 1LN

0
HI2220Q401R-10

HI2220Q401R-10

Laird - Performance Materials

FERRITE BEAD 400 OHM 2220 1LN

24555
LI1806E800R-10

LI1806E800R-10

Laird - Performance Materials

FERRITE BEAD 80 OHM 1806 1LN

0
HZ0603B751R-10

HZ0603B751R-10

Laird - Performance Materials

FERRITE BEAD 750 OHM 0603 1LN

57625
HI0805O121R-10

HI0805O121R-10

Laird - Performance Materials

FERRITE BEAD 120 OHM 0805 1LN

0
35F0121-1SR-10

35F0121-1SR-10

Laird - Performance Materials

FERRITE BEAD 82 OHM 2SMD 1LN

46630
HI3312X101R-10

HI3312X101R-10

Laird - Performance Materials

FERRITE BEAD 100 OHM 3312 1LN

2220
MI1210K600R-10

MI1210K600R-10

Laird - Performance Materials

FERRITE BEAD 60 OHM 1210 1LN

0
MI0603L301R-10

MI0603L301R-10

Laird - Performance Materials

FERRITE BEAD 300 OHM 0603 1LN

748
MI1806J800R-10

MI1806J800R-10

Laird - Performance Materials

FERRITE BEAD 78 OHM 1806 1LN

14234
MI0603L221R-10

MI0603L221R-10

Laird - Performance Materials

FERRITE BEAD 220 OHM 0603 1LN

558333
LI1806C151R-10

LI1806C151R-10

Laird - Performance Materials

FERRITE BEAD 150 OHM 1806 1LN

391756
28C0236-0BS-10

28C0236-0BS-10

Laird - Performance Materials

FERRITE BEAD 835 OHM AXIAL 1LN

0
HI2220P271R-10

HI2220P271R-10

Laird - Performance Materials

FERRITE BEAD 270 OHM 2220 1LN

0
MI1206K310R-10

MI1206K310R-10

Laird - Performance Materials

FERRITE BEAD 31 OHM 1206 1LN

18860
MI0805K400R-10

MI0805K400R-10

Laird - Performance Materials

FERRITE BEAD 40 OHM 0805 1LN

185216
LI0402E300R-10

LI0402E300R-10

Laird - Performance Materials

FERRITE BEAD 30 OHM 0402 1LN

50895
HZ0805B272R-10

HZ0805B272R-10

Laird - Performance Materials

FERRITE BEAD 2.7 KOHM 0805 1LN

19659
HZ0402C601R-10

HZ0402C601R-10

Laird - Performance Materials

FERRITE BEAD 600 OHM 0402 1LN

0

Ferrite Beads and Chips

1. Overview

Ferrite beads and chips are passive electronic components designed to suppress high-frequency noise in electrical circuits. Made from ferrite materials (iron oxide compounds), they act as low-pass filters by dissipating electromagnetic interference (EMI) as heat. Their importance in modern electronics lies in ensuring signal integrity, reducing radio-frequency interference (RFI), and complying with electromagnetic compatibility (EMC) standards. They are widely used in power supplies, communication systems, and high-speed digital circuits.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
High-Frequency Ferrite BeadsOptimized for GHz-range noise suppression, low core loss5G transceivers, RF modules
Low-Frequency Ferrite BeadsEffective at MHz-range filtering, high impedance stabilityPower supplies, motor drives
High-Current ChipsDesigned for >1A applications, thermal stabilityEV battery management systems
Multilayer Ferrite ChipsStacked structure for broadband filteringSmartphones, IoT devices

3. Structure and Composition

Typical construction includes:

  • Ferrite Core: Mn-Zn or Ni-Zn based ceramic material
  • Electrodes: Silver-palladium (AgPd) or copper-nickel (CuNi) terminations
  • Encapsulation: Epoxy or polymer coating for mechanical protection
  • Geometry: Available in cylindrical (beads) or rectangular (chips) formats

Advanced designs incorporate internal electrode layers to increase impedance density.

4. Key Technical Parameters

ParameterDescriptionImportance
Impedance (Z)100MHz @ 100 -10k Determines noise suppression efficiency
Rated Current100mA-10AAffects circuit stability under load
Frequency Range1MHz-10GHzDefines operational bandwidth
DC Resistance (DCR)0.1 -20 Impacts power loss and heating
Operating Temp.-55 C to +150 CEnsures reliability in extreme conditions

5. Application Areas

  • Consumer Electronics: Smartphones (camera module filtering), laptops (power line conditioning)
  • Automotive: EV charging systems (CAN bus noise suppression), ADAS sensors
  • Industrial: PLCs (programmable logic controllers), motor drives
  • Telecom: Base stations (RF front-end filtering), optical transceivers

6. Leading Manufacturers and Products

ManufacturerKey ProductsSpecifications
MurataBLSH series0.7A, 600 @ 100MHz, EIA 0603
TDKMMZ series3.0A, 2200 @ 100MHz, EIA 1210
Coilcraft0603LS series1.5A, 500 @ 100MHz, 0.65mm height
W rth Elektronik744300 series2.0A, 1500 @ 100MHz, AEC-Q200 qualified

7. Selection Guidelines

  1. Define frequency range: Choose Ni-Zn for >100MHz applications, Mn-Zn for low frequencies
  2. Calculate current requirements: Select rated current 20% higher than maximum operating current
  3. Impedance matching: Ensure Z 10 source/load impedance at target frequency
  4. Package constraints: Prioritize chip format for space-limited PCB designs
  5. Environmental factors: Consider temperature rating for automotive/industrial applications
  6. Cost optimization: Balance performance needs with standard vs. high-end part pricing

8. Industry Trends

Key development directions include:

  • Miniaturization: Development of 0201/01005 chip sizes for wearable devices
  • High-frequency performance: Materials enabling stable operation beyond 10GHz
  • Integrated solutions: Combining ferrite beads with capacitors in single packages
  • Material innovation: Lead-free and low-temperature co-fired ceramic (LTCC) technologies
  • Automotive focus: AEC-Q qualified parts for EV/HEV power systems
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