Miscellaneous Suppression Cores (2643175451)
43 SPLIT SUPPRESSOR CORE
43 Material®
Suppression Components
Cable Component
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Part Number: 2643175451
43 SPLIT SUPPRESSOR CORE
Explanation of Part Numbers:
– Digits 1 & 2 = Product Class
– Digits 3 & 4 = Material Grade
Fair-Rite has tooled several special core geometries in the 43 & 77 material for suppression of conducted EMI.
For any non-catalog suppression core design feel free to contact our customer service or application group for feasibility and availability.
The “C” dimension, the core length, can be modified to suit specific applications.
Weight: (g)
| Dim | mm | mm tol | nominal inch | inch misc. |
| A | 17.8 | _ | 0.7 | |
| B | 12.7 | _ | 0.5 | |
| C | 20.32 | _ | 0.8 | |
| D | 6.6 | ±0.25 | 0.26 | _ |
| E | 5.08 | ±0.25 | 0.2 | _ |
Chart Legend
+ Test frequency
•Figures 3 & 4 tested in pairs
| Typical Impedance (Ω) | |
| 10 MHz | 85 |
| 25 MHz+ | 127 |
| 100 MHz+ | 186 |
| 250 MHz | 230 |
These suppression cores are controlled for impedance only. The minimum impedance is typically the listed impedance less 20%.
Single turns tests are performed on the E4991A / HP4291B Impedance Analyzer with the shortest practical wire length.
| Typical Impendance (Ω) | |
| 10 MHz | 75 |
| 25 MHz+ | 119 |
| 100 MHz+ | 180 |
| 250 MHz | 270 |
This NiZn is our most popular ferrite for suppression of conducted EMI from 20 MHz to 250 MHz. This material is also used for inductive applications such as high frequency common-mode chokes.
Available in 43 material®:
EMI Suppression Beads
Beads On Leads
SM beads
Multi-Aperture Cores
Round Cable EMI Suppression Cores
Round Cable Snap-Its
Flat Cable EMI Suppression Cores
Flat Cable Snap-Its
Miscellaneous Suppression Cores
Bobbins
Toroids
43 Material® Characteristics
| Property | Unit | Symbol | Value |
| Initial Permeability@ B < 10 gauss | µi | 800 | |
| Flux Density @ Field Strength | Gauss Oersted |
B H |
3500 10 |
| Residual Flux Density | Gauss | Br | 2200 |
| Coercive Force | Oersted | Hc | 0.36 |
| Loss Factor @ Frequency | 10 -6 MHz |
Tan δ/ µi | 100 1.0 |
| Temperature Coefficient of Initial Permeability (20 -70°C) | %/°C | 1.25 | |
| Curie Temperature | °C | Tc | >130 |
| Resistivity | ohm-cm | ρ | 1×105 |
**** Characteristic curves are measured on standard Toroids (18/10/6 mm) at 25°C and 10 kHz unless otherwise indicated. Impedance characteristics are measured on standard shield beads (3.5/1.3/6.0 mm) unless otherwise indicated.
Material Safety Data Sheet (MSDS)
Click here to download Complex Permeability vs. Frequency (CSV)
Ferrite Material Constants
Storage and Operating Temperature
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