Cable Ferrites

Part Number	Description / PDF	Quantity
28R1457-400 Laird - Performance Materials	FERRITE CORE 140 OHM SOLID	28343
28S2012-0M0 Laird - Performance Materials	FERRITE CORE 240 OHM CLIP	684
28A2736-0A2 Laird - Performance Materials	FERRITE CORE 220 OHM HINGED 9MM	0
HFB143064-000 Laird - Performance Materials	FERRITE CORE 43 OHM SOLID 6.35MM	3560
28A2029-0A2 Laird - Performance Materials	FERRITE CORE 250 OHM HINGED	20913
HFB095051-200 Laird - Performance Materials	FERRITE CORE 120 OHM SOLID	2673
28B0390-200 Laird - Performance Materials	FERRITE CORE 128 OHM SOLID	12632
28B0570-000 Laird - Performance Materials	FERRITE CORE 82 OHM SOLID 8.51MM	0
28B0563-200 Laird - Performance Materials	FERRITE CORE 287 OHM SOLID	40386
LFB090050-000 Laird - Performance Materials	FERRITE CORE 36 OHM SOLID 5MM	12697
28B0485-000 Laird - Performance Materials	FERRITE CORE 320 OHM SOLID	5214
LFB143064-100 Laird - Performance Materials	FERRITE CORE 53 OHM SOLID 6.35MM	2869
28B0275-000 Laird - Performance Materials	FERRITE CORE 146 OHM SOLID 3.8MM	14889
28B0631-100 Laird - Performance Materials	FERRITE CORE 243 OHM SOLID	20128
HFB259128-100 Laird - Performance Materials	FERRITE CORE 175 OHM SOLID	0
28A2024-0A0 Laird - Performance Materials	FERRITE CORE 280 OHM HINGED	0
28B0563-000 Laird - Performance Materials	FERRITE CORE 173 OHM SOLID	0
28B0375-300 Laird - Performance Materials	FERRITE CORE 194 OHM SOLID	12753
HFB150070-200 Laird - Performance Materials	FERRITE CORE 242 OHM SOLID	2716
HFB159079-100 Laird - Performance Materials	FERRITE CORE 235 OHM SOLID	655

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

Type	Functional Characteristics	Application Examples
Split Core (Snap-on)	Easy installation without cable disassembly; moderate noise suppression	Consumer electronics power cables
Wound Type	Higher inductance through multiple turns; superior EMI filtering	Industrial motor drives
Flat Cable Ferrite	Low-profile design; optimized for ribbon cables	Computer peripheral cables
High-Frequency Ferrite	Effective at GHz frequencies; specialized material formulation	5G 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

Parameter	Description	Importance
Impedance (100MHz)	100 - 2500	Determines noise attenuation performance
Frequency Range	1MHz - 3GHz	Defines effective operation bandwidth
Temperature Stability	-40 C to +125 C	Ensures reliability in harsh environments
Cable Compatibility	2-15mm diameter	Installation 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

Manufacturer	Key Product	Features
TDK Corporation	DFE3D25E102MA2D	2500 @100MHz, 3GHz high-frequency performance
Murata Manufacturing	BLE21HG102MN1D	Compact 10.5 6.5mm size for automotive applications
Steward Components	28B2043-0A0	High-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