Cable Ferrites

Image Part Number Description / PDF Quantity Rfq
782114076160

782114076160

Würth Elektronik Midcom

WE-TEFA TOROIDAL EMI SUPPRESSION

164

7427226

7427226

Würth Elektronik Midcom

FERRITE CORE 75 OHM SOLID

2399

74278021

74278021

Würth Elektronik Midcom

FERRITE CORE 58 OHM SOLID

6

7427248

7427248

Würth Elektronik Midcom

FERRITE CORE 180 OHM HINGED

45

74270043

74270043

Würth Elektronik Midcom

WE-AFB EMI SUPPRESSION AXIAL FER

493

74270022

74270022

Würth Elektronik Midcom

FERRITE CORE 59 OHM SOLID 4MM

10642

7427014

7427014

Würth Elektronik Midcom

WE-TOF EMI SUPPRESSION TOROIDAL

277

782013150285

782013150285

Würth Elektronik Midcom

FERRITE CORE 190 OHM SOLID

44

74270113

74270113

Würth Elektronik Midcom

FERRITE CORE 126 OHM SOLID 5MM

2123

782013076508

782013076508

Würth Elektronik Midcom

FERRITE CORE 460 OHM SOLID 8MM

742

74275813

74275813

Würth Elektronik Midcom

FERRITE CORE 200 OHM HINGED

688

782013091285

782013091285

Würth Elektronik Midcom

FERRITE CORE 220 OHM SOLID 9.5MM

128

74270162

74270162

Würth Elektronik Midcom

FERRITE CORE 94 OHM SOLID 6.76MM

4013

74270090

74270090

Würth Elektronik Midcom

FERRITE CORE 250 OHM SOLID 13MM

168

74271378

74271378

Würth Elektronik Midcom

FERRITE CORE 200 OHM CLAMP

0

7427154

7427154

Würth Elektronik Midcom

FERRITE CORE 130 OHM HINGED 16MM

474

74271722

74271722

Würth Elektronik Midcom

FERRITE CORE 270 OHM HINGED

578

74270025

74270025

Würth Elektronik Midcom

FERRITE CORE 136 OHM SOLID

362

74271132

74271132

Würth Elektronik Midcom

FERRITE CORE 241 OHM HINGED

5268

742701703

742701703

Würth Elektronik Midcom

WE-TOF EMI SUPPRESSION TOROIDAL

151

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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