28x Ferrite Cable Cores

Laird Technologies 28x Ferrite Cable Cores come in four variants: split/snap-on (28A), cylindrical (28B), solid core (28R), and split core (28S). The 28x ferrite cable cores are constructed from ultra-thin mixtures of iron, nickel, and zinc oxides. They are available in cylinder, ribbon, split-flat, and clamp-on shapes. Laird Technologies 28x ferrite cable cores provide excellent differential and common mode EMI suppression on flat cable assemblies.

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Impedance
Inside Diameter
Outside Diameter
Inside Length
Outside Length
Outside Width
Inside Height
Outside Height
Packaging
Core Material
Laird Technologies Ferrite Cable Cores 139 ohms 100MHz 28 mm Inside Slot
Datasheet
4,200In Stock
2,880Expected 07/04/2026
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 139 Ohms 28 mm 34 mm 12 mm 1 mm 7 mm Bulk 28
Laird Technologies Ferrite Cable Cores 150ohms 100MHz 12.5mm Inside Slot / SOLD AS SINGLE SIDES. ORDER 2 TO FORM A SET
Datasheet
17,132In Stock
Min.: 1
Mult.: 1

28S Flat Ribbon Cable Cores Split 60 Ohms 12.5 mm 17.02 mm 14.99 mm 0.51 mm 3.4 mm Bulk 28
Laird Technologies Ferrite Cable Cores 280ohm 100MHz 52.07mm Inside Slot / SOLD AS SINGLE SIDES. ORDER 2 TO FORM A SET
Datasheet
624In Stock
Min.: 1
Mult.: 1

28S Flat Ribbon Cable Cores Split 280 Ohms 52.07 mm 63.5 mm 28.58 mm 0.84 mm 6.35 mm Bulk 28
Laird Technologies Ferrite Cable Cores Ribbon Cable 76.2x28.58x6.35mm / SOLD AS SINGLE SIDES. ORDER 2 TO FORM A SET
Datasheet
938In Stock
Min.: 1
Mult.: 1

28S Flat Ribbon Cable Cores Split 280 Ohms 65.28 mm 76.2 mm 28.58 mm 0.84 mm 6.35 mm Bulk 28
Laird Technologies Ferrite Cable Cores 250ohm 100MHz 26.67mm Inside Slot / SOLD AS SINGLE SIDES. ORDER 2 TO FORM A SET
Datasheet
851In Stock
Min.: 1
Mult.: 1

28S Flat Ribbon Cable Cores Split 250 Ohms 26.67 mm 38.1 mm 25.4 mm 0.84 mm 6.35 mm Bulk 28
Laird Technologies Ferrite Cable Cores 135ohms 100MHz 35.56mm Inside Dia.
Datasheet
717In Stock
441Expected 21/04/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 135 Ohms 35.56 mm 35.56 mm 12.7 mm Bulk 28
Laird Technologies Ferrite Cable Cores 121 ohms 100MHz 2 mm Inside Dia.
Datasheet
4,163In Stock
15,000Expected 21/04/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 121 Ohms 2 mm 4 mm 10 mm Bulk 28
Laird Technologies Ferrite Cable Cores 135 ohms 100MHz 3.18 mm Inside Dia.
Datasheet
11,993In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 135 Ohms 3.18 mm 6.35 mm 10 mm Bulk 28
Laird Technologies Ferrite Cable Cores 100ohms 100MHz 3.17mm Inside Dia.
Datasheet
9,095In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 100 Ohms 3.17 mm 8 mm 4.78 mm Bulk 28
Laird Technologies Ferrite Cable Cores 158ohms 100MHz 3.17mm Inside Dia.
Datasheet
525In Stock
9,000Expected 24/03/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 158 Ohms 3.17 mm 8 mm 10.06 mm Bulk 28
Laird Technologies Ferrite Cable Cores 143ohms 100MHz 3.8mm Inside Dia.
Datasheet
8,554In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 143 Ohms 3.8 mm 8.6 mm 10 mm Bulk 28
Laird Technologies Ferrite Cable Cores 154ohms 100MHz 5.08mm Inside Dia.
Datasheet
3,865In Stock
36,000On Order
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 154 Ohms 5.08 mm 9.53 mm 14.48 mm Bulk 28
Laird Technologies Ferrite Cable Cores 81ohms 100MHz 5.08mm Inside Dia.
Datasheet
10,784In Stock
12,000Expected 11/05/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 81 Ohms 5.08 mm 9.52 mm 4.83 mm Bulk 28
Laird Technologies Ferrite Cable Cores 159ohms 100MHz 3.8mm Inside Dia.
Datasheet
10,000In Stock
7,776Expected 12/05/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 159 Ohms 3.8 mm 9.75 mm 10 mm Bulk 28
Laird Technologies Ferrite Cable Cores 322ohms 100MHz 3.8mm Inside Dia.
Datasheet
4,279In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 322 Ohms 3.8 mm 9.75 mm 25 mm Bulk 28
Laird Technologies Ferrite Cable Cores 83 ohms 100MHz 5.97 mm Inside Dia.
Datasheet
6,954In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 83 Ohms 5.97 mm 10.01 mm 6.17 mm Bulk 28
Laird Technologies Ferrite Cable Cores Solid Broadband 262 Ohms 100MHz
Datasheet
810In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 262 Ohms 4.9 mm 11.5 mm 25 mm Bulk 28
Laird Technologies Ferrite Cable Cores 195ohms 100MHz 3.55mm Inside Dia.
Datasheet
2,079In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 195 Ohms 3.55 mm 12 mm 10 mm Bulk 28
Laird Technologies Ferrite Cable Cores 424ohms 100MHz 3.55mm Inside Dia.
Datasheet
2,371In Stock
5,616Expected 07/04/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 424 Ohms 3.55 mm 12 mm 25 mm Bulk 28
Laird Technologies Ferrite Cable Cores Rnd,Sld,BB,CSNO Solid
Datasheet
1,703In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 245 Ohms 4.5 mm 12 mm 20 mm Bulk 28
Laird Technologies Ferrite Cable Cores 300ohms 100MHz 6.99mm Inside Dia.
Datasheet
1,298In Stock
1,760Expected 07/04/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 300 Ohms 6.99 mm 14.99 mm 27.94 mm Bulk 28
Laird Technologies Ferrite Cable Cores 122ohms 100MHz 15.49mm Inside Dia.
Datasheet
2,327In Stock
1,715Expected 07/04/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 122 Ohms 15.49 mm 25.4 mm 12.7 mm Bulk 28
Laird Technologies Ferrite Cable Cores 210ohms 100MHz 13.77mm Inside Dia.
Datasheet
146In Stock
540Expected 21/04/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 210 Ohms 13.77 mm 28.5 mm 20 mm Bulk 28
Laird Technologies Ferrite Cable Cores 85ohms 100MHz 19mm Inside Dia.
Datasheet
1,858In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 85 Ohms 19 mm 29.01 mm 7.49 mm Bulk 28
Laird Technologies Ferrite Cable Cores 186ohms 100MHz 19.05mm Inside Dia.
Datasheet
753In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 186 Ohms 19.05 mm 31.75 mm 22.22 mm Bulk 28