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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Ferrite Clamp On Cores CLAMP-ON FILTER BLK 177 Ohms 100MHz 28A2913-0A2 Laird 1: $4.90 583In Stock 576Expected 21/12/2026	Mfr. Part No. 28A2913-0A2 Mouser Part No 875-28A2913-0A2	Laird	Ferrite Clamp On Cores CLAMP-ON FILTER BLK 177 Ohms 100MHz Learn More about Laird 28a ferrite clamp filters	Datasheet	583In Stock 576Expected 21/12/2026	$4.90 $3.37 $2.87 $2.52 $2.04	Min.: 1 Mult.: 1
Ferrite Clamp On Cores CLAMP-ON FILTER BLK 120ohms 100MHz 28A4155-0A2 Laird 1: $5.70 239In Stock 672Expected 6/1/2027	Mfr. Part No. 28A4155-0A2 Mouser Part No 875-28A4155-0A2	Laird	Ferrite Clamp On Cores CLAMP-ON FILTER BLK 120ohms 100MHz Learn More about Laird 28a ferrite clamp filters	Datasheet	239In Stock 672Expected 6/1/2027	$5.70 $3.90 $3.32 $2.91 $2.45	Min.: 1 Mult.: 1
Ferrite Clamp On Cores CLAMP-ON FILTER WHT 170ohms 100MHz 28A0392-0A0 Laird 1: $2.23 1,435In Stock 2,912Expected 18/1/2027	Mfr. Part No. 28A0392-0A0 Mouser Part No 875-28A0392-0A0	Laird	Ferrite Clamp On Cores CLAMP-ON FILTER WHT 170ohms 100MHz Learn More about Laird 28a ferrite clamp filters	Datasheet	1,435In Stock 2,912Expected 18/1/2027	$2.23 $1.56 $1.33 $1.18 View $1.04 $1.02	Min.: 1 Mult.: 1
Ferrite Clamp On Cores CLAMP-ON FILTER BLK 280ohms 100MHz 28A2024-0A2 Laird 1: $7.56 55In Stock 6,156On Order	Mfr. Part No. 28A2024-0A2 Mouser Part No 875-28A2024-0A2	Laird	Ferrite Clamp On Cores CLAMP-ON FILTER BLK 280ohms 100MHz Learn More about Laird 28a ferrite clamp filters	Datasheet	55In Stock 6,156On Order On Order Ship Dates Mfr. No: 28A2024-0A2 Stock: 55 Can Dispatch Immediately On Order: 1,836 Expected 16/11/2026 1,512 Expected 14/12/2026 2,808 Expected 22/12/2026 Factory Lead Time: 13 Weeks	$7.56 $5.15 $4.37 $3.81 $3.40	Min.: 1 Mult.: 1
Ferrite Clamp On Cores Rnd,Spl,BB,CSWH Snap-on White 28A2026-0A0 Laird 1: $3.89 582In Stock	Mfr. Part No. 28A2026-0A0 Mouser Part No 875-28A2026-0A0	Laird	Ferrite Clamp On Cores Rnd,Spl,BB,CSWH Snap-on White Learn More about Laird 28a ferrite clamp filters	Datasheet	582In Stock	$3.89 $2.68 $2.28 $2.01 View $1.77 $1.60 $1.56	Min.: 1 Mult.: 1
Ferrite Clamp On Cores CLAMP-ON FILTER BLK 220 Ohms 100MHz 28A2809-0A2 Laird 1: $5.28 1,398On Order	Mfr. Part No. 28A2809-0A2 Mouser Part No 875-28A2809-0A2	Laird	Ferrite Clamp On Cores CLAMP-ON FILTER BLK 220 Ohms 100MHz Learn More about Laird 28a ferrite clamp filters	Datasheet	1,398On Order On Order Ship Dates Mfr. No: 28A2809-0A2 Stock: 0 On Order: 698 Expected 14/12/2026 700 Expected 12/1/2027 Factory Lead Time: 12 Weeks	$5.28 $3.62 $3.09 $2.69 View $2.34 $2.14	Min.: 1 Mult.: 1
Ferrite Cable Cores FCCRnd,Spl,BB,CSNO 11x5.1x32mm 28A0434-000 Laird 2,700: $0.589 Non-Stocked Lead-Time 14 Weeks	Mfr. Part No. 28A0434-000 Mouser Part No 739-28A0434-000	Laird	Ferrite Cable Cores FCCRnd,Spl,BB,CSNO 11x5.1x32mm Learn More about Laird 28a ferrite clamp filters	Datasheet	Non-Stocked Lead-Time 14 Weeks	$0.589	Min.: 2,700 Mult.: 900
Ferrite Clamp On Cores FCCRnd,Spl,BB,CSWH 20.5x9.85x37.5mm 28A0807-0A0 Laird 480: $2.53 Non-Stocked Lead-Time 13 Weeks	Mfr. Part No. 28A0807-0A0 Mouser Part No 739-28A0807-0A0	Laird	Ferrite Clamp On Cores FCCRnd,Spl,BB,CSWH 20.5x9.85x37.5mm Learn More about Laird 28a ferrite clamp filters	Datasheet	Non-Stocked Lead-Time 13 Weeks	$2.53 $2.50	Min.: 480 Mult.: 120
Ferrite Cable Cores FCCRnd,Spl,BB,CSBL72x39x46MM 28A2827-0A2 Laird 10,000: $43.66 Non-Stocked	Mfr. Part No. 28A2827-0A2 Mouser Part No 739-28A2827-0A2	Laird	Ferrite Cable Cores FCCRnd,Spl,BB,CSBL72x39x46MM Learn More about Laird 28a ferrite clamp filters	Datasheet	Non-Stocked	$43.66	Min.: 10,000 Mult.: 10,000
Ferrite Clamp On Cores Rnd,Spl,BB,CSNO Snap-on 28A2736-000 Laird 1: $3.51 Non-Stocked Lead-Time 13 Weeks	Mfr. Part No. 28A2736-000 Mouser Part No 875-28A2736-000	Laird	Ferrite Clamp On Cores Rnd,Spl,BB,CSNO Snap-on Learn More about Laird 28a ferrite clamp filters	Datasheet	Non-Stocked Lead-Time 13 Weeks	$3.51 $2.34 $2.00 $1.75 View $1.54 $1.50 $1.32	Min.: 1 Mult.: 1

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28A Ferrite Clamp Filters

Types of Passive Components