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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.	Product Type
Ferrite Clamp On Cores CLAMP-ON FILTER BLK 120ohms 100MHz 28A4155-0A2 Laird 1: $5.63 705In Stock	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	705In Stock	$5.63 $3.86 $3.28 $2.87 $2.45	Min.: 1 Mult.: 1	Ferrite Clamp On Cores
Ferrite Clamp On Cores CLAMP-ON FILTER BLK 280ohms 100MHz 28A2024-0A2 Laird 1: $6.36 404In 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	404In Stock 6,156On Order On Order Ship Dates Mfr. No: 28A2024-0A2 Stock: 404 Can Dispatch Immediately On Order: 1,836 Expected 9/11/2026 2,808 Expected 8/12/2026 1,512 Expected 14/12/2026 Factory Lead Time: 13 Weeks	$6.36 $4.35 $3.69 $3.40	Min.: 1 Mult.: 1	Ferrite Clamp On Cores
Ferrite Clamp On Cores Rnd,Spl,BB,CSWH Snap-on White 28A2026-0A0 Laird 1: $3.88 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	$3.88 $2.68 $2.28 $2.01 View $1.77 $1.60 $1.56	Min.: 1 Mult.: 1	Ferrite Clamp On Cores
Ferrite Clamp On Cores CLAMP-ON FILTER BLK 425ohms 100MHz 28A5131-0A2 Laird 1: $32.41 1,200On Order	Mfr. Part No. 28A5131-0A2 Mouser Part No 875-28A5131-0A2	Laird	Ferrite Clamp On Cores CLAMP-ON FILTER BLK 425ohms 100MHz Learn More about Laird 28a ferrite clamp filters	Datasheet	1,200On Order On Order Ship Dates Mfr. No: 28A5131-0A2 Stock: 0 On Order: 354 Expected 14/10/2026 846 Expected 3/11/2026 Factory Lead Time: 12 Weeks	$32.41 $21.72 $19.88	Min.: 1 Mult.: 1	Ferrite Clamp On Cores
Ferrite Clamp On Cores CLAMP-ON FILTER WH 320ohms 100MHz 28A2025-0A0 Laird 1: $2.77 25,505On Order	Mfr. Part No. 28A2025-0A0 Mouser Part No 875-28A2025-0A0	Laird	Ferrite Clamp On Cores CLAMP-ON FILTER WH 320ohms 100MHz Learn More about Laird 28a ferrite clamp filters	Datasheet	25,505On Order On Order Ship Dates Mfr. No: 28A2025-0A0 Stock: 0 On Order: 8,465 Expected 14/10/2026 17,040 Expected 9/11/2026 Factory Lead Time: 13 Weeks	$2.77 $2.01 $1.62 $1.50 View $1.19 $1.11	Min.: 1 Mult.: 1	Ferrite Clamp On Cores
Ferrite Clamp On Cores CLAMP-ON FILTER WHT 240ohms 100MHz 28A0640-0A0 Laird 1: $4.37 6,953On Order	Mfr. Part No. 28A0640-0A0 Mouser Part No 875-28A0640-0A0	Laird	Ferrite Clamp On Cores CLAMP-ON FILTER WHT 240ohms 100MHz Learn More about Laird 28a ferrite clamp filters	Datasheet	6,953On Order On Order Ship Dates Mfr. No: 28A0640-0A0 Stock: 0 On Order: 2,453 Expected 15/10/2026 4,500 Expected 30/11/2026 Factory Lead Time: 13 Weeks	$4.37 $3.02 $2.57 $2.27 View $1.96 $1.82 $1.73	Min.: 1 Mult.: 1	Ferrite Clamp On Cores
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 Cable Cores
Ferrite Clamp On Cores FCCRnd,Spl,BB,CSWH 20.5x9.85x37.5mm 28A0807-0A0 Laird 480: $2.50 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	$2.50	Min.: 480 Mult.: 120	Ferrite Clamp On Cores
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 Cable Cores
Ferrite Clamp On Cores Rnd,Spl,BB,CSNO Snap-on 28A2736-000 Laird 1: $3.25 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	$3.25 $2.24 $1.92 $1.69 View $1.48 $1.32	Min.: 1 Mult.: 1	Ferrite Clamp On Cores

28A Ferrite Clamp Filters

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