Cable Ferrites

Image Part Number Description / PDF Quantity Rfq
ESD-FPL-15

ESD-FPL-15

KEMET

FERRITE CORE SOLID 23.5 X 1.5MM

0

ESD-R-57SR

ESD-R-57SR

KEMET

MN-ZN FERRITE HIGH Z TROIDS/RING

25

28R1240-010

28R1240-010

Laird - Performance Materials

FERRITE CORE 211 OHM SOLID

0

5975000301

5975000301

Fair-Rite Products Corp.

FERRITE CORE

0

74270038

74270038

Würth Elektronik Midcom

WE-AFB EMI SUPPRESSION AXIAL FER

254

LFB259128-000

LFB259128-000

Laird - Performance Materials

FERRITE CORE 62 OHM SOLID

0

28B0625-000

28B0625-000

Laird - Performance Materials

FERRITE CORE 163 OHM SOLID

12093

782013057450

782013057450

Würth Elektronik Midcom

FERRITE CORE 370 OHM SOLID 6.1MM

65

2643626502

2643626502

Fair-Rite Products Corp.

FERRITE 348OHM SOLID 10.16MM

8299

ESD-R-38SA

ESD-R-38SA

KEMET

MN-ZN TOROIDAL, WITH CASE 17.5MM

148

2873002302

2873002302

Fair-Rite Products Corp.

FERRITE CORE MULTI-APERTURE

6937

28B1540-000

28B1540-000

Laird - Performance Materials

FERRITE CORE 254 OHM SOLID

0

7427213

7427213

Würth Elektronik Midcom

WE-FLAT FLAT FERRITE CORE Z 25 M

937

2643006302

2643006302

Fair-Rite Products Corp.

FERRITE CORE 80OHM SOLID 4.90MM

1007

ESD-SR-250HL

ESD-SR-250HL

KEMET

NI-ZN SNAP-ON ~ 13MMHIGH HEAT RE

69

ESD-FPL-57.6-12

ESD-FPL-57.6-12

KEMET

NI-ZN FOR FLAT CABLE, BARE 52.0

674

2867000102

2867000102

Fair-Rite Products Corp.

FERRITE CORE MULTI-APERTURE

2722

28R1141-010

28R1141-010

Laird - Performance Materials

FERRITE CORE 168 OHM SOLID

0

28B0384-000

28B0384-000

Laird - Performance Materials

FERRITE CORE 159 OHM SOLID 3.8MM

18976

HFA259131-0A2

HFA259131-0A2

Laird - Performance Materials

FERRITE CORE 250 OHM HINGED

253

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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