28x Ferrite Cable Cores

Laird 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 28x ferrite cable cores provide excellent differential and common mode EMI suppression on flat cable assemblies.

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Description Datasheet Availability Pricing (SGD) 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 Ferrite Cable Cores 254ohms 100MHz 16.76mm Inside Dia.
Datasheet
1,204In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 254 Ohms 16.76 mm 39.12 mm 22.22 mm Bulk 28
Laird Ferrite Cable Cores 442ohms 100MHz 25.4mm Inside Dia.
Datasheet
219In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 305 Ohms 25.4 mm 50.8 mm 28.7 mm Bulk 28
Laird Ferrite Cable Cores 80ohms 100MHz 13.5mm Inside Slot
Datasheet
16,829In Stock
13,300Expected 6/10/2026
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 80 Ohms 13.5 mm 15.5 mm 10 mm 1.4 mm 3.4 mm Bulk 28
Laird Ferrite Cable Cores 140ohms 100MHz 15mm Inside Slot
Datasheet
22,272In Stock
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 140 Ohms 15 mm 19.2 mm 16 mm 1.15 mm 5.35 mm Bulk 28
Laird Ferrite Cable Cores 112ohms 100MHz 19mm Inside Slot
Datasheet
13,139In Stock
32,200Expected 13/10/2026
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 112 Ohms 19 mm 24 mm 10 mm 1.25 mm 6.25 mm Bulk 28
Laird Ferrite Cable Cores 220ohms 100MHz 18mm Inside Slot
Datasheet
3,966In Stock
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 220 Ohms 18 mm 25 mm 24 mm 0.9 mm 7.7 mm Bulk 28
Laird Ferrite Cable Cores 91 ohms 100MHz 22 mm Inside Slot
Datasheet
16,481In Stock
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 91 Ohms 22 mm 26 mm 9 mm 1.2 mm 5 mm Bulk 28
Laird Ferrite Cable Cores 154ohms 100MHz 23mm Inside Slot
Datasheet
6,881In Stock
2,700Expected 2/11/2026
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 340 Ohms 23 mm 28 mm 15 mm 0.8 mm 5.8 mm Bulk 28
Laird Ferrite Cable Cores 230ohms 100MHz 23mm Inside Slot
Datasheet
2,147In Stock
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 230 Ohms 23 mm 28 mm 27 mm 1.1 mm 6.1 mm Bulk 28
Laird Ferrite Cable Cores 110ohms 100MHz 23.5mm Inside Slot
Datasheet
7,810In Stock
7,938Expected 17/11/2026
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 110 Ohms 23.5 mm 28.58 mm 9.7 mm 1.7 mm 7.7 mm Bulk 28
Laird Ferrite Cable Cores 135ohms 100MHz 25.1mm Inside Slot
Datasheet
4,192In Stock
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 135 Ohms 25.1 mm 32 mm 9.7 mm 0.9 mm 7.75 mm Bulk 28
Laird Ferrite Cable Cores 260ohms 100MHz 26mm Inside Slot
Datasheet
2,021In Stock
3,300Expected 17/11/2026
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 260 Ohms 26 mm 32 mm 30 mm 1 mm 7 mm Bulk 28
Laird Ferrite Cable Cores 139 ohms 100MHz 28 mm Inside Slot
Datasheet
4,999In Stock
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 Ferrite Cable Cores 220ohms 100MHz 28mm Inside Slot
Datasheet
1,616In Stock
Min.: 1
Mult.: 1

28R Flat Ribbon Cable Cores Solid 220 Ohms 28 mm 34 mm 25 mm 1 mm 7 mm Bulk 28
Laird Ferrite Cable Cores 280ohm 100MHz 52.07mm Inside Slot / SOLD AS SINGLE SIDES. ORDER 2 TO FORM A SET
Datasheet
972In 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 Ferrite Cable Cores 34.42mm Inside Slot / SOLD AS SINGLE SIDES. ORDER 2 TO FORM A SET
Datasheet
Product Comments
1,496In Stock
Min.: 1
Mult.: 1

28S Flat Ribbon Cable Cores Split 250 Ohms 34.42 mm 45.09 mm 28.58 mm 0.84 mm 6.35 mm Bulk 28
Laird Ferrite Cable Cores 120ohms 100MHz 17mm Inside Slot / SOLD AS SINGLE SIDES. ORDER 2 TO FORM A SET
Datasheet
6,138In Stock
8,208Expected 17/11/2026
Min.: 1
Mult.: 1

28S Flat Ribbon Cable Cores Split 120 Ohms 17 mm 21 mm 12.01 mm 0.94 mm 3.99 mm Bulk 28
Laird Ferrite Cable Cores 182ohms 100MHz 3.18mm Inside Dia.
Datasheet
7,863In Stock
7,200Expected 29/9/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 182 Ohms 3.18 mm 6.35 mm 15.88 mm Bulk 28
Laird Ferrite Cable Cores 135 ohms 100MHz 3.18 mm Inside Dia.
Datasheet
4,574In Stock
12,000Expected 29/9/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 135 Ohms 3.18 mm 6.35 mm 10 mm Bulk 28
Laird Ferrite Cable Cores 100ohms 100MHz 3.17mm Inside Dia.
Datasheet
3,618In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 100 Ohms 3.17 mm 8 mm 4.78 mm Bulk 28
Laird Ferrite Cable Cores 143ohms 100MHz 3.8mm Inside Dia.
Datasheet
9,631In Stock
7,776Expected 5/10/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 143 Ohms 3.8 mm 8.6 mm 10 mm Bulk 28
Laird Ferrite Cable Cores 205ohms 100MHz 4.75mm Inside Dia.
Datasheet
3,184In Stock
23,322On Order
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 205 Ohms 4.75 mm 9 mm 20 mm Bulk 28
Laird Ferrite Cable Cores 125ohms 100MHz 5.08mm Inside Dia.
Datasheet
3,247In Stock
60,000On Order
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 125 Ohms 5.08 mm 9.53 mm 10.41 mm Bulk 28
Laird Ferrite Cable Cores 322ohms 100MHz 3.8mm Inside Dia.
Datasheet
2,656In Stock
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 322 Ohms 3.8 mm 9.75 mm 25 mm Bulk 28
Laird Ferrite Cable Cores 83 ohms 100MHz 5.97 mm Inside Dia.
Datasheet
7,219In Stock
8,000Expected 30/11/2026
Min.: 1
Mult.: 1

28B Round Cable Cores Solid 83 Ohms 5.97 mm 10.01 mm 6.17 mm Bulk 28