Product Data Sheet Generated June 19, 2026
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SPLIT ROUND CABLE CORE (2631181381)

Part No. 2631181381
SPLIT ROUND CABLE CORE (2631181381)
Part Number
2631181381
Description
31 SPLIT ROUND CABLE CORE
Part Type
SPLIT ROUND CABLE CORE
Frequency Range
31 Material®
Application Type
Suppression Components
Where Used
Cable Component
Material Grade
31
Ordering Information

Part Number: 2631181381

31 SPLIT ROUND CABLE CORE

Explanation of Part Numbers:
– Digits 1 & 2 = Product Class
– Digits 3 & 4 = Material Grade

Round cable snap-it™ can easily accommodate round cables or bundled wires with diameters from 2.5 mm (0.100) to 25.4 mm (1.000). These assemblies are available in four ferrite material classes to suppress differential or common-mode conducted EMI from 1 MHz into the GHz region. The polypropylene cases are meeting the RoHS restrictions of hazardous substances and have a flammability rating of UL 94 V-0.

Many of the snap-it™ parts have round core equivalents. See Round Cable EMI Suppression Cores.

Round Cable Snap-It™ Kits are available for each of the four suppression materials. 31 Snap-It™ Kit (0199000030), 43 Snap-It™ Kit (0199000031), 46 Core and Snap-It™ Kit (0199000032) and 61 Snap-It™ Kit (0199000033).

Mechanical Specifications

The B dimension is the core inside diameter.

Weight: 289 (g)

Chart Legend
•Dimensions (Top numbers are in millimeters, bottom numbers are in nominal inches.).
•For solid cable cores, see Round Cable EMI Suppression Cores

Dimmmmm tolnominal inchinch misc.
A62.1±1.002.455_
B37.2±0.641.465 min
C63.5±1.502.5_
D30.23±0.311.17_

Electrical Specifications

Chart Legend
+ Test frequency
•For solid cable cores, see Round Cable EMI Suppression Cores

Typical Impedance (Ω)
1 MHz67
5 MHz160
10 MHz+193
25 MHz+288
100 MHz+453
250 MHz284

Round cable snap-it™ assemblies are controlled for impedances only. Minimum impedance values are specified for the + marked frequencies. The minimum impedance is typically the listed impedance less 20%.

Single turn impedance tests for 31, 43 and 46 material cores are performed on the E4991A/HP4291B Impedance Analyzer. The 61 material parts are tested on the E4991A / HP4291B Impedance Analyzer and 75 material parts are tested on the E4990A Impedance Analyzer. Cores are tested with the shortest practical wire length.

Typical Impendance (Ω)
1 MHz 60
5 MHz 150
10 MHz+ 190
25 MHz+ 290
100 MHz+ 490
250 MHz 530

 

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This document was generated automatically from Fair-Rite's product database. For the most current specifications, visit fair-rite.com.