28A Ferrite Clamp Filters

Laird 28A Ferrite Clamp Filters are split, snap-on cores in plastic cases for broadband EMI filtering. The 28A series is designed for round cables and wiring harnesses. For retrofit and post-assembly operations, Laird offers a selection of "split" cores that perform similarly to one-piece core designs. The 28A split ferrite cores provide excellent common and differential mode EMI suppression on round cable assemblies. Lightweight plastic snap-on cases provide the secure closure of the split cores onto the cable. The cases are available in black or white with dimensions ranging from 5mm (0.197") to 56.63mm (2.23"). Laird 28A Ferrite Clamp Filters feature an operating temperature range of -40°C to +125°C. Typical impedance ranges from 50Ω to 232Ω at 25MHz, 120Ω to 511Ω at 100MHz, and 230Ω to 627Ω at 300MHz.

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Results: 35
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Laird Ferrite Clamp On Cores CLAMP-ON FILTER WHT 170ohms 100MHz 8,715In Stock
$1.40
$1.05
$0.931
$0.852
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores Rnd,Spl,BB,CSNO Snap-on 1,041In Stock
$2.41
$1.66
$1.42
$1.26
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 170ohms 100MHz 61,632In Stock
$1.11
$0.985
$0.95
$0.808
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 572ohms 100MHz 27,299In Stock
$3.15
$2.17
$1.64
$1.43
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 407ohms 100MHz 42,420In Stock
22,464Expected 12/8/2026
$2.62
$2.05
$1.80
$1.59
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 220ohms 100MHz 34,603In Stock
25,900Expected 10/7/2026
$2.12
$1.47
$1.26
$1.11
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 183 Ohms 100MHz 5,856In Stock
$2.12
$1.47
$1.26
$1.11
$1.01
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 233 Ohms 100MHz 3,939In Stock
$6.08
$4.17
$3.54
$3.10
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 240ohms 100MHz 8,560In Stock
10,780Expected 10/20/2026
$1.90
$1.35
$1.18
$1.05
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 227ohms 100MHz 3,139In Stock
2,816Expected 12/21/2026
$2.24
$1.59
$1.36
$1.20
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 240ohms 100MHz 1,976In Stock
$2.59
$1.80
$1.53
$1.35
$1.28
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 348 Ohms 100MHz 3,392In Stock
10,920On Order
$3.57
$2.46
$2.09
$1.84
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 123 Ohms 100MHz 2,445In Stock
4,032Expected 10/12/2026
$1.30
$0.903
$0.776
$0.688
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 190 Ohms 100MHz 3,117In Stock
13,728On Order
$1.68
$1.16
$0.998
$0.918
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON Fltr 100MHz 280ohms White Case 2,418In Stock
1,620Expected 11/9/2026
$4.41
$3.02
$2.56
$2.38
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER WH 320ohms 100MHz 8,449In Stock
17,040Expected 11/9/2026
$2.04
$1.48
$1.19
$1.10
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 320ohms 100MHz 9,682In Stock
$1.78
$1.32
$1.16
$1.09
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 270ohms 100MHz 13,594In Stock
200On Order
$2.85
$1.97
$1.68
$1.48
$1.15
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER WHT 250ohms 100MHz 3,244In Stock
2,250Expected 11/30/2026
$3.23
$2.23
$1.90
$1.67
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 250ohms 100MHz 7,645In Stock
4,712Expected 10/23/2026
$2.58
$1.86
$1.59
$1.41
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 160ohms 100MHz 4,393In Stock
4,900Expected 10/5/2026
$2.70
$1.87
$1.59
$1.52
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 130ohms 100MHz 1,282In Stock
$3.57
$2.45
$2.08
$1.82
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 260ohms 100MHz 1,600In Stock
$9.87
$7.01
$5.55
$5.22
$5.12
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 210ohms 100MHz 647In Stock
1,008Expected 12/21/2026
$9.90
$8.03
$6.72
$6.02
Min.: 1
Mult.: 1
Laird Ferrite Clamp On Cores CLAMP-ON FILTER BLK 220 Ohms 100MHz 619In Stock
700Expected 12/14/2026
$3.44
$2.37
$2.02
$1.77
$1.57
Min.: 1
Mult.: 1