Cable Ferrites

Image Part Number Description / PDF Quantity Rfq
ESD-R-57D

ESD-R-57D

KEMET

NI-ZN TOROIDAL, BARE 36MM

58

ESD-R-25B

ESD-R-25B

KEMET

FERRITE CORE CLAMP 13.9MM

169

742700727

742700727

Würth Elektronik Midcom

FERRITE CORE 115 OHM SOLID 4.2MM

592

LFB174095-000

LFB174095-000

Laird - Performance Materials

FERRITE CORE 85 OHM SOLID 9.5MM

0

ZCAT6819-5230D

ZCAT6819-5230D

TDK Corporation

FERRITE CORE 35 OHM HINGED

8193

74271733S

74271733S

Würth Elektronik Midcom

SNAP FERRITE W/FLEXIBLE CABLE FI

38

74270014

74270014

Würth Elektronik Midcom

FERRITE CORE 68 OHM SOLID 2MM

585

2643001301

2643001301

Fair-Rite Products Corp.

FERRITE CORE 48OHM SOLID 1.78MM

20763

ESD-R-47H

ESD-R-47H

KEMET

MN-ZN TOROIDAL, WITH CASE 22.7MM

58

ESD-FPL-14.5-5

ESD-FPL-14.5-5

KEMET

NI-ZN FOR FLAT CABLE, BARE 11.0

1632

5943000601

5943000601

Fair-Rite Products Corp.

FERRITE CORE

9910

2643806402

2643806402

Fair-Rite Products Corp.

FERRITE CORE 90OHM SOLID 15.49MM

8761

ESD-R-57M-H

ESD-R-57M-H

KEMET

MN-ZN FERRITE TROIDS CASED 33.2M

10

ESD-FPD-16-1

ESD-FPD-16-1

KEMET

FERRITE CORE CLIP 25.4MM X 2.6MM

263

2631163851

2631163851

Fair-Rite Products Corp.

31 FULL FLAT CABLE CORE

121

74270095

74270095

Würth Elektronik Midcom

FERRITE CORE 153 OHM SOLID 18MM

250

7427227

7427227

Würth Elektronik Midcom

FERRITE CORE 44 OHM SOLID

0

74270061

74270061

Würth Elektronik Midcom

FERRITE CORE 120 OHM SOLID

0

2673000501

2673000501

Fair-Rite Products Corp.

FERRITE CORE SOLID 1.09MM

235640

28B0268-000

28B0268-000

Laird - Performance Materials

FERRITE CORE 138 OHM SOLID

109258

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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