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Power Supply Line Noise Suppression for Home Audio

Digital amplifiers are increasingly popular for home audio applications. In many cases, power is supplied from an AC outlet for home audio, and the conductive noise in the power supply cable is regulated under EMC standards. Therefore, it is necessary to prevent noise from leaking into the power supply line during audio playback. Here is an overview of noise problems in home audio cables and their solutions.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (DKK) Filter the results in the table by unit price based on your quantity.	Qty.
Ferrite Beads 330 OHM Alternate Sizing Guide Below BLM21SP331SN1D Murata Electronics 1: 3,14 kr. 13.154In Stock 56.000On Order	Mfr. Part No. BLM21SP331SN1D Mouser Part No 81-BLM21SP331SN1D	Murata Electronics	Ferrite Beads 330 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	13.154In Stock 56.000On Order On Order Ship Dates Mfr. No: BLM21SP331SN1D Stock: 13.154 Can Dispatch Immediately On Order: 16.000 Expected 15/02/2027 40.000 Expected 22/03/2027 Factory Lead Time: 20 Weeks	Cut Tape 3,14 kr. 2,18 kr. 1,90 kr. 1,69 kr. View Reel 0,88 kr. 1,49 kr. 1,27 kr. 0,985 kr. 0,903 kr. 0,88 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads 470 OHM Alternate Sizing Guide Below BLM21SP471SN1D Murata Electronics 1: 3,14 kr. 30.765In Stock 28.000Expected 22/03/2027	Mfr. Part No. BLM21SP471SN1D Mouser Part No 81-BLM21SP471SN1D	Murata Electronics	Ferrite Beads 470 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	30.765In Stock 28.000Expected 22/03/2027	Cut Tape 3,14 kr. 2,18 kr. 1,90 kr. 1,69 kr. View Reel 0,865 kr. 1,49 kr. 1,27 kr. 1,12 kr. 1,01 kr. 0,865 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads 600 OHM Alternate Sizing Guide Below BLM31KN601SN1L Murata Electronics 1: 3,85 kr. 21.519In Stock 87.500On Order	Mfr. Part No. BLM31KN601SN1L Mouser Part No 81-BLM31KN601SN1L	Murata Electronics	Ferrite Beads 600 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm31kn	Datasheet	21.519In Stock 87.500On Order	Cut Tape 3,85 kr. 2,72 kr. 2,35 kr. 2,09 kr. View Reel 1,10 kr. 1,86 kr. 1,57 kr. 1,37 kr. 1,29 kr. 1,10 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Common Mode Chokes / Filters 800 NH PLT10HH450180PNL Murata Electronics 1: 65,50 kr. 16In Stock 1.250On Order	Mfr. Part No. PLT10HH450180PNL Mouser Part No 81-PLT10HH450180PNL	Murata Electronics	Common Mode Chokes / Filters 800 NH Learn More about Murata Electronics murataplt10hh	Datasheet	16In Stock 1.250On Order On Order Ship Dates Mfr. No: PLT10HH450180PNL Stock: 16 Can Dispatch Immediately On Order: 500 Expected 07/01/2027 750 Expected 14/01/2027 Factory Lead Time: 12 Weeks	Cut Tape 65,50 kr. 53,86 kr. 49,83 kr. 47,15 kr. Reel 43,12 kr. 40,06 kr. MouseReel Available	Min.: 1 Mult.: 1 : 125
EMI Filter Circuits 10.0 UF 25V 20A BNX025H01L Murata Electronics 1: 41,25 kr. 3.575In Stock 44.000On Order End of Life	Mfr. Part No. BNX025H01L Mouser Part No 81-BNX025H01L End of Life	Murata Electronics	EMI Filter Circuits 10.0 UF 25V 20A Learn More about Murata Electronics murata bnx series	Datasheet	3.575In Stock 44.000On Order On Order Ship Dates Mfr. No: BNX025H01L Stock: 3.575 Can Dispatch Immediately On Order: 10.000 Expected 12/11/2026 22.000 Expected 29/03/2027 12.000 Expected 10/04/2028 Factory Lead Time: 22 Weeks	Cut Tape 41,25 kr. 33,72 kr. 31,03 kr. 29,17 kr. Reel 22,23 kr. View 27,45 kr. 23,57 kr. 20,59 kr. MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 6.3 V 15A BNX029-01L Murata Electronics 1: 38,94 kr. 1.582In Stock 4.400Expected 10/04/2028 End of Life	Mfr. Part No. BNX029-01L Mouser Part No 81-BNX029-01L End of Life	Murata Electronics	EMI Filter Circuits 6.3 V 15A Learn More about Murata Electronics murata bnx series	Datasheet	1.582In Stock 4.400Expected 10/04/2028	Cut Tape 38,94 kr. 31,78 kr. 29,32 kr. 27,60 kr. Reel 20,89 kr. View 25,89 kr. 22,31 kr. 20,14 kr. MouseReel Available	Min.: 1 Mult.: 1 : 400
Ferrite Beads 120 OHM Alternate Sizing Guide Below BLM15KD121SN1D Murata Electronics 1: 0,895 kr. 16.945In Stock 20.000Expected 08/12/2026	Mfr. Part No. BLM15KD121SN1D Mouser Part No 81-BLM15KD121SN1D	Murata Electronics	Ferrite Beads 120 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	16.945In Stock 20.000Expected 08/12/2026	Cut Tape 0,895 kr. 0,627 kr. 0,485 kr. 0,44 kr. View Reel 0,194 kr. 0,38 kr. 0,336 kr. 0,298 kr. 0,231 kr. 0,194 kr. MouseReel Available	Min.: 1 Mult.: 1 : 10.000
Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below BLM18KG601SN1D Murata Electronics 1: 0,895 kr. 20.793In Stock 1.200.000On Order	Mfr. Part No. BLM18KG601SN1D Mouser Part No 81-BLM18KG601SN1D	Murata Electronics	Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below Learn More about Murata Electronics murata blm18kg ferrite beads	Datasheet	20.793In Stock 1.200.000On Order On Order Ship Dates Mfr. No: BLM18KG601SN1D Stock: 20.793 Can Dispatch Immediately On Order: 80.000 Pending 1.120.000 Expected 25/01/2027 Factory Lead Time: 22 Weeks	Cut Tape 0,895 kr. 0,649 kr. 0,507 kr. 0,425 kr. Reel 0,216 kr. View 0,366 kr. 0,328 kr. 0,298 kr. 0,201 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads FB SMD 0603inch 220o hm NONAUTO Alternate Sizing Guide Below BLM18SP221SN1D Murata Electronics 1: 2,50 kr. 6.133In Stock 8.000Expected 04/12/2026	Mfr. Part No. BLM18SP221SN1D Mouser Part No 81-BLM18SP221SN1D	Murata Electronics	Ferrite Beads FB SMD 0603inch 220o hm NONAUTO Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	6.133In Stock 8.000Expected 04/12/2026	Cut Tape 2,50 kr. 1,78 kr. 1,38 kr. 1,22 kr. View Reel 0,671 kr. 1,04 kr. 0,918 kr. 0,806 kr. 0,671 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads 70 OHM Alternate Sizing Guide Below BLM21SP700SN1D Murata Electronics 1: 3,21 kr. 6.823In Stock 28.000On Order	Mfr. Part No. BLM21SP700SN1D Mouser Part No 81-BLM21SP700SN1D	Murata Electronics	Ferrite Beads 70 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	6.823In Stock 28.000On Order On Order Ship Dates Mfr. No: BLM21SP700SN1D Stock: 6.823 Can Dispatch Immediately On Order: 8.000 Expected 11/12/2026 20.000 Expected 24/12/2026 Factory Lead Time: 20 Weeks	Cut Tape 3,21 kr. 2,18 kr. 1,90 kr. 1,69 kr. View Reel 0,88 kr. 1,49 kr. 1,27 kr. 1,12 kr. 1,01 kr. 0,88 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
EMI Filter Circuits 35 DB 50V 20A SMD BNX022-01L Murata Electronics 1: 33,20 kr. 399In Stock 46.800On Order End of Life	Mfr. Part No. BNX022-01L Mouser Part No 81-BNX022-01L End of Life	Murata Electronics	EMI Filter Circuits 35 DB 50V 20A SMD Learn More about Murata Electronics murata bnx series	Datasheet	399In Stock 46.800On Order On Order Ship Dates Mfr. No: BNX022-01L Stock: 399 Can Dispatch Immediately On Order: 28.400 Expected 10/04/2028 18.400 Expected 18/04/2028 Factory Lead Time: 22 Weeks	Cut Tape 33,20 kr. 27,08 kr. 23,50 kr. 22,16 kr. Reel 17,83 kr. View 19,02 kr. 16,41 kr. 15,82 kr. MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 10.0 UF 50V 20A BNX026H01L Murata Electronics 1: 43,86 kr. 37In Stock 34.800On Order End of Life	Mfr. Part No. BNX026H01L Mouser Part No 81-BNX026H01L End of Life	Murata Electronics	EMI Filter Circuits 10.0 UF 50V 20A Learn More about Murata Electronics murata bnx series	Datasheet	37In Stock 34.800On Order On Order Ship Dates Mfr. No: BNX026H01L Stock: 37 Can Dispatch Immediately On Order: 21.600 Expected 10/04/2028 13.200 Expected 18/04/2028 Factory Lead Time: 22 Weeks	Cut Tape 43,86 kr. 35,81 kr. 33,05 kr. 31,11 kr. Reel 23,57 kr. View 29,24 kr. 25,14 kr. 23,05 kr. MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 16 V 15A BNX028-01L Murata Electronics 1: 41,40 kr. 42In Stock 17.600On Order End of Life	Mfr. Part No. BNX028-01L Mouser Part No 81-BNX028-01L End of Life	Murata Electronics	EMI Filter Circuits 16 V 15A Learn More about Murata Electronics murata bnx series	Datasheet	42In Stock 17.600On Order On Order Ship Dates Mfr. No: BNX028-01L Stock: 42 Can Dispatch Immediately On Order: 6.400 Expected 10/04/2028 8.000 Expected 17/04/2028 3.200 Expected 18/04/2028 Factory Lead Time: 22 Weeks	Cut Tape 41,40 kr. 35,36 kr. 30,66 kr. 27,60 kr. Reel 20,89 kr. View 25,89 kr. 22,31 kr. 20,14 kr. MouseReel Available	Min.: 1 Mult.: 1 : 400
Ferrite Beads Chip Ferrite 0805, 4mOhms Res, 30Ohms Imp, 8.5A BLM21SN300SN1D Murata Electronics 1: 2,05 kr. 539.685On Order	Mfr. Part No. BLM21SN300SN1D Mouser Part No 81-BLM21SN300SN1D	Murata Electronics	Ferrite Beads Chip Ferrite 0805, 4mOhms Res, 30Ohms Imp, 8.5A Learn More about Murata Electronics murata blm sn ferrite beads	Datasheet	539.685On Order On Order Ship Dates Mfr. No: BLM21SN300SN1D Stock: 0 On Order: 179.685 Expected 14/12/2026 140.000 Expected 23/02/2027 220.000 Expected 15/03/2027 Factory Lead Time: 20 Weeks	Cut Tape 2,05 kr. 1,44 kr. 1,12 kr. 0,992 kr. View Reel 0,515 kr. 0,85 kr. 0,746 kr. 0,589 kr. 0,515 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below BLM31KN102SN1L Murata Electronics 1: 3,85 kr. 187.273On Order	Mfr. Part No. BLM31KN102SN1L Mouser Part No 81-BLM31KN102SN1L	Murata Electronics	Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below Learn More about Murata Electronics murata blm31kn	Datasheet	187.273On Order On Order Ship Dates Mfr. No: BLM31KN102SN1L Stock: 0 On Order: 99.773 Expected 07/12/2026 87.500 TBD Factory Lead Time: 16 Weeks	Cut Tape 3,85 kr. 2,67 kr. 2,35 kr. 2,09 kr. View Reel 1,17 kr. 1,86 kr. 1,57 kr. 1,37 kr. 1,29 kr. 1,17 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Ferrite Beads 120 OHM Alternate Sizing Guide Below BLM31KN121SN1L Murata Electronics 1: 3,60 kr. 184.910On Order	Mfr. Part No. BLM31KN121SN1L Mouser Part No 81-BLM31KN121SN1L	Murata Electronics	Ferrite Beads 120 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm31kn	Datasheet	184.910On Order On Order Ship Dates Mfr. No: BLM31KN121SN1L Stock: 0 On Order: 72.410 Expected 02/02/2027 112.500 TBD Factory Lead Time: 16 Weeks	Cut Tape 3,60 kr. 2,46 kr. 2,16 kr. 1,93 kr. View Reel 1,10 kr. 1,72 kr. 1,45 kr. 1,27 kr. 1,19 kr. 1,10 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Ferrite Beads 270 OHM 4.5A Alternate Sizing Guide Below BLM31KN271SN1L Murata Electronics 1: 3,85 kr. 296.956On Order	Mfr. Part No. BLM31KN271SN1L Mouser Part No 81-BLM31KN271SN1L	Murata Electronics	Ferrite Beads 270 OHM 4.5A Alternate Sizing Guide Below Learn More about Murata Electronics murata blm31kn	Datasheet	296.956On Order On Order Ship Dates Mfr. No: BLM31KN271SN1L Stock: 0 On Order: 64.456 Expected 11/01/2027 232.500 TBD Factory Lead Time: 16 Weeks	Cut Tape 3,85 kr. 2,72 kr. 2,35 kr. 2,09 kr. View Reel 1,10 kr. 1,86 kr. 1,57 kr. 1,37 kr. 1,29 kr. 1,10 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Ferrite Beads 470 OHM Alternate Sizing Guide Below BLM31KN471SN1L Murata Electronics 1: 3,85 kr. 299.292On Order	Mfr. Part No. BLM31KN471SN1L Mouser Part No 81-BLM31KN471SN1L	Murata Electronics	Ferrite Beads 470 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm31kn	Datasheet	299.292On Order On Order Ship Dates Mfr. No: BLM31KN471SN1L Stock: 0 On Order: 74.292 Expected 11/01/2027 225.000 TBD Factory Lead Time: 16 Weeks	Cut Tape 3,85 kr. 2,72 kr. 2,35 kr. 2,09 kr. View Reel 1,10 kr. 1,86 kr. 1,57 kr. 1,37 kr. 1,29 kr. 1,10 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below BLM31KN801SN1L Murata Electronics 1: 3,85 kr. 79.915On Order	Mfr. Part No. BLM31KN801SN1L Mouser Part No 81-BLM31KN801SN1L	Murata Electronics	Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below Learn More about Murata Electronics murata blm31kn	Datasheet	79.915On Order On Order Ship Dates Mfr. No: BLM31KN801SN1L Stock: 0 On Order: 2.415 Expected 23/11/2026 77.500 TBD Factory Lead Time: 16 Weeks	Cut Tape 3,85 kr. 2,72 kr. 2,35 kr. 2,09 kr. View Reel 1,10 kr. 1,86 kr. 1,57 kr. 1,23 kr. 1,13 kr. 1,10 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Ferrite Beads 20 OHM Alternate Sizing Guide Below BLM15KD200SN1D Murata Electronics 1: 0,895 kr. 389.068On Order	Mfr. Part No. BLM15KD200SN1D Mouser Part No 81-BLM15KD200SN1D	Murata Electronics	Ferrite Beads 20 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	389.068On Order On Order Ship Dates Mfr. No: BLM15KD200SN1D Stock: 0 On Order: 89.068 Expected 11/12/2026 120.000 Expected 27/01/2027 180.000 Expected 01/02/2027 Factory Lead Time: 16 Weeks	Cut Tape 0,895 kr. 0,627 kr. 0,485 kr. 0,44 kr. View Reel 0,194 kr. 0,38 kr. 0,336 kr. 0,239 kr. 0,194 kr. MouseReel Available	Min.: 1 Mult.: 1 : 10.000
Ferrite Beads BLM02KX100SN1D Murata Electronics 15.000: 0,463 kr. Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. BLM02KX100SN1D Mouser Part No 81-BLM02KX100SN1D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata blm emi filter	Datasheet	Non-Stocked Lead-Time 11 Weeks	Reel 0,463 kr.	Min.: 15.000 Mult.: 15.000 : 15.000

Power Supply Line Noise Suppression for Home Audio

Types of Passive Components

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Power Supply Line Noise Suppression for Home Audio

Types of Passive Components