Cable Ferrites

Part Number	Description / PDF	Quantity
28B0734-000 Laird - Performance Materials	FERRITE CORE 229 OHM SOLID	5481
28R0880-000 Laird - Performance Materials	FERRITE CORE 187 OHM SOLID	0
28B0686-100 Laird - Performance Materials	FERRITE CORE 139 OHM SOLID	2824
28A0640-0A2 Laird - Performance Materials	FERRITE CORE 240 OHM HINGED	0
28A3851-0A2 Laird - Performance Materials	FERRITE CORE 260 OHM HINGED 13MM	0
LFB143064-000 Laird - Performance Materials	FERRITE CORE 120 OHM SOLID	7415
28B0562-100 Laird - Performance Materials	FERRITE CORE 184 OHM SOLID	0
28R0756-000 Laird - Performance Materials	FERRITE CORE 107 OHM SOLID	38145
28A2024-0A2 Laird - Performance Materials	FERRITE CORE 280 OHM HINGED	0
28B0686-000 Laird - Performance Materials	FERRITE CORE 91 OHM SOLID 9.52MM	5317
28B0500-300 Laird - Performance Materials	FERRITE CORE 118 OHM SOLID	0
28A2026-0A2 Laird - Performance Materials	FERRITE CORE 270 OHM HINGED	5515
28R0898-200 Laird - Performance Materials	FERRITE CORE 127 OHM SOLID	86
28B0500-100 Laird - Performance Materials	FERRITE CORE 83 OHM SOLID 7.92MM	0
28B0999-000 Laird - Performance Materials	FERRITE CORE 122 OHM SOLID	910
28B0735-300 Laird - Performance Materials	FERRITE CORE 150 OHM SOLID	0
HFB095051-100 Laird - Performance Materials	FERRITE CORE 64 OHM SOLID 5.08MM	5975
28B0562-200 Laird - Performance Materials	FERRITE CORE 294 OHM SOLID	23792
28B1225-000 Laird - Performance Materials	FERRITE CORE 140 OHM SOLID	0
28B1142-100 Laird - Performance Materials	FERRITE CORE 114 OHM SOLID 19MM	0

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