Cable Ferrites

Image Part Number Description / PDF Quantity Rfq
7427246

7427246

Würth Elektronik Midcom

FERRITE CORE 194 OHM HINGED

266

7427007

7427007

Würth Elektronik Midcom

FERRITE CORE 278 OHM SOLID

75

7427012

7427012

Würth Elektronik Midcom

FERRITE CORE 148 OHM SOLID

242

7427122

7427122

Würth Elektronik Midcom

FERRITE CORE 273 OHM HINGED

20

7427802

7427802

Würth Elektronik Midcom

FERRITE CORE 65 OHM SOLID

0

74270104

74270104

Würth Elektronik Midcom

FERRITE CORE 67 OHM SOLID 19MM

28

74270036

74270036

Würth Elektronik Midcom

FERRITE CORE 240 OHM SOLID 5.5MM

4589

7427808

7427808

Würth Elektronik Midcom

FERRITE CORE 20 OHM SOLID

0

74270191

74270191

Würth Elektronik Midcom

WE-TOF EMI SUPPRESSION TOROIDAL

273

74270071

74270071

Würth Elektronik Midcom

FERRITE CORE 40 OHM SOLID 1.2MM

350

7427009

7427009

Würth Elektronik Midcom

WE-AFB EMI SUPPRESSION AXIAL FER

1030

74271111

74271111

Würth Elektronik Midcom

FERRITE CORE 320 OHM HINGED 5MM

5681

74278031

74278031

Würth Elektronik Midcom

FERRITE CORE 80 OHM SOLID

0

74271112

74271112

Würth Elektronik Midcom

FERRITE CORE 321 OHM HINGED 6MM

2389

7427153S

7427153S

Würth Elektronik Midcom

FERRITE CORE 165 OHM HINGED 8MM

748

74278032

74278032

Würth Elektronik Midcom

FERRITE CORE 74 OHM SOLID

110

74271131S

74271131S

Würth Elektronik Midcom

FERRITE CORE 246 OHM HINGED

348

7427801

7427801

Würth Elektronik Midcom

FERRITE CORE 79 OHM SOLID

0

74270097

74270097

Würth Elektronik Midcom

FERRITE CORE 133 OHM SOLID

229

74270032

74270032

Würth Elektronik Midcom

FERRITE CORE 255 OHM SOLID 5MM

6517

Cable Ferrites

1. Overview

Cable Ferrites are passive electronic components designed to suppress high-frequency noise in cables, reducing electromagnetic interference (EMI) and radio-frequency interference (RFI). Constructed from ferrite materials, these components absorb electromagnetic energy and convert it into heat. With the rapid development of high-speed electronics and wireless communication systems, cable ferrites play a critical role in ensuring electromagnetic compatibility (EMC) across industries.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Split Core (Snap-on)Easy installation without cable disassembly; moderate noise suppressionConsumer electronics power cables
Wound TypeHigher inductance through multiple turns; superior EMI filteringIndustrial motor drives
Flat Cable FerriteLow-profile design; optimized for ribbon cablesComputer peripheral cables
High-Frequency FerriteEffective at GHz frequencies; specialized material formulation5G base station cables

3. Structure and Composition

Typical cable ferrites consist of a manganese-zinc (MnZn) or nickel-zinc (NiZn) ferrite core with polymer coating. Split-core designs use two interlocking halves with snap mechanisms, while wound types feature pre-molded toroidal cores. Advanced models integrate conductive elastomers for improved EMI absorption. The core material's permeability determines the operating frequency range and noise suppression efficiency.

4. Key Technical Specifications

ParameterDescriptionImportance
Impedance (100MHz)100 - 2500 Determines noise attenuation performance
Frequency Range1MHz - 3GHzDefines effective operation bandwidth
Temperature Stability-40 C to +125 CEnsures reliability in harsh environments
Cable Compatibility2-15mm diameterInstallation flexibility

5. Application Fields

  • Consumer Electronics: Notebook chargers, HDMI cables, USB hubs
  • Industrial Equipment: PLC systems, CNC machine cabling
  • Telecommunications: Fiber optic transceivers, 5G small cells
  • Automotive: CAN bus systems, EV charging cables

6. Leading Manufacturers and Products

ManufacturerKey ProductFeatures
TDK CorporationDFE3D25E102MA2D2500 @100MHz, 3GHz high-frequency performance
Murata ManufacturingBLE21HG102MN1DCompact 10.5 6.5mm size for automotive applications
Steward Components28B2043-0A0High-vibration resistance for industrial motors

7. Selection Guidelines

Key considerations include:

  • Match impedance to target noise frequency range
  • Verify mechanical compatibility with cable diameter
  • Select material type (MnZn for low frequencies, NiZn for high frequencies)
  • Assess environmental requirements (temperature, vibration)
  • Balance performance with cost constraints

8. Industry Trends

Current trends show: - Increasing demand for high-frequency (>6GHz) ferrites driven by 5G and IoT - Miniaturization for wearable device applications - Development of wideband ferrites with multi-octave frequency coverage - Growing adoption in EV charging systems (SAE J1772 compliance) - Integration with cable connectors for space-constrained designs

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