Flat Cable EMI Suppression Cores (2631163851)
31 FULL FLAT CABLE CORE
31 Material®
Suppression Components
Cable Component
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Part Number: 2631163851
31 FULL FLAT CABLE CORE
Explanation of Part Numbers:
– Digits 1 & 2 = Product Class
– Digits 3 & 4 = Material Grade
Flat cable suppression core can accommodate multi-conductors flat cables, in widths from 12.7 mm (0.500) up to 77 mm (3.0). These flat cable cores are available in two ferrite material grades to reduce conducted EMI from 1 MHz to hundreds of MHz.
Our Expanded Cable & Suppressor Kit (part number 0199000005) contains a selection of these flat cable cores and clips.
Flat Cable Cores are available in selected sizes in the Flex Circuit & Ribbon Cable Core Kit (part number 0199000038).
Assembly clips are available for most of the split flat cable cores. See section Flat Cable Cores Assembly clips.
Weight: 51 (g)
Dim | mm | mm tol | nominal inch | inch misc. |
A | 38.1 | ±1.00 | 1.5 | _ |
B | 26.65 | ±0.75 | 1.05 | _ |
C | 25.4 | ±0.75 | 1 | _ |
D | 12.05 | ±0.40 | 0.475 | _ |
E | 1.9 | ±0.40 | 0.075 | _ |
Cable Information | |||
Max Diameter | Max Dimension | Solid Equivalent | Flat Cable Cores |
0 0 | 25.90 x 1.50 | _ | - |
Chart Legend
+ Test frequency
•For assembly clips see Flat Cable Cores Assembly Clips
Typical Impedance (Ω) | |
1 MHz | 32 |
5 MHz | 61 |
10 MHz+ | 74 |
25 MHz+ | 112 |
100 MHz+ | 205 |
250 MHz | 343 |
Flat cable suppression cores, split or single cores, are controlled for impedances only. Minimum impedance values are specified for the + marked frequencies. The minimum impedance is typically the listed impedance less 20%.
Centered, single turn impedance tests for the 31 and 43 material parts are performed on the E4990A Impedance Analyzer. All tests are made with the shortest practical wire length.
Typical Impendance (Ω) | |
1 MHz | 20 |
5 MHz | 52 |
10 MHz+ | 68 |
25 MHz+ | 112 |
100 MHz+ | 240 |
250 MHz | 440 |
A MZn ferrite designed specifically for EMI suppression applications from as low as 1 MHz up to 500 MHz. This material does not have the dimensional resonance limitations associated with conventional MZn ferrite materials.
Available in 31 Material®:
Round Cable EMI Suppression Cores
Round Cable Snap-Its
Flat Cable EMI Suppression Cores
Flat Cable Snap-Its
31 Material® Characteristics
Property | Unit | Symbol | Value |
Initial Permeability@B < 10 gauss | µi | 1500 | |
Flux Density @ Field Strength | Gauss Oersted |
B H |
3600 5 |
Residual Flux Density | Gauss | Br | 2600 |
Coercive Force | Oersted | Hc | 0.34 |
Loss Factor @ Frequency | 10 -6 MHz |
Tan δ/ µi | 20 0.1 |
Temperature Coefficient of Initial Permeability (20 -70°C) | %/°C | 1.3 | |
Curie Temperature | °C | Tc | >130 |
Resistivity | Ω cm | ρ | 3000 |
**** 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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