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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 (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
Ferrite Beads 110 OHM Alternate Sizing Guide Below BLM21SP111SN1D Murata Electronics 1: 0,421 € 11.906In Stock 216.000On Order	Mfr. Part No. BLM21SP111SN1D Mouser Part No 81-BLM21SP111SN1D	Murata Electronics	Ferrite Beads 110 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	11.906In Stock 216.000On Order On Order Ship Dates Mfr. No: BLM21SP111SN1D Stock: 11.906 Can Dispatch Immediately On Order: 140.000 Expected 1/5/2027 76.000 Expected 2/15/2027 Factory Lead Time: 20 Weeks	Cut Tape 0,421 € 0,292 € 0,255 € 0,227 € View Reel 0,116 € 0,20 € 0,17 € 0,15 € 0,136 € 0,116 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads 330 OHM Alternate Sizing Guide Below BLM21SP331SN1D Murata Electronics 1: 0,421 € 15.154In 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	15.154In Stock 56.000On Order On Order Ship Dates Mfr. No: BLM21SP331SN1D Stock: 15.154 Can Dispatch Immediately On Order: 16.000 Expected 2/15/2027 40.000 Expected 3/22/2027 Factory Lead Time: 20 Weeks	Cut Tape 0,421 € 0,292 € 0,255 € 0,227 € View Reel 0,118 € 0,20 € 0,17 € 0,155 € 0,139 € 0,118 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads 470 OHM Alternate Sizing Guide Below BLM21SP471SN1D Murata Electronics 1: 0,421 € 30.765In Stock 28.000Expected 3/22/2027	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 3/22/2027	Cut Tape 0,421 € 0,292 € 0,255 € 0,227 € View Reel 0,116 € 0,20 € 0,17 € 0,15 € 0,136 € 0,116 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads 600 OHM Alternate Sizing Guide Below BLM31KN601SN1L Murata Electronics 1: 0,516 € 21.801In 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	21.801In Stock 87.500On Order	Cut Tape 0,516 € 0,365 € 0,315 € 0,28 € View Reel 0,147 € 0,249 € 0,211 € 0,184 € 0,173 € 0,147 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Common Mode Chokes / Filters 800 NH PLT10HH450180PNL Murata Electronics 1: 8,78 € 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 1/7/2027 750 Expected 1/14/2027 Factory Lead Time: 12 Weeks	Cut Tape 8,78 € 7,22 € 6,68 € 6,32 € Reel 5,78 € 5,37 € MouseReel Available	Min.: 1 Mult.: 1 : 125
EMI Filter Circuits 6.3 V 15A BNX029-01L Murata Electronics 1: 5,53 € 1.584In Stock 4.400Expected 4/10/2028 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	1.584In Stock 4.400Expected 4/10/2028	Cut Tape 5,53 € 4,52 € 4,16 € 3,91 € Reel 2,92 € View 3,68 € 3,16 € 2,75 € 2,70 € MouseReel Available	Min.: 1 Mult.: 1 : 400
Ferrite Beads 120 OHM Alternate Sizing Guide Below BLM15KD121SN1D Murata Electronics 1: 0,12 € 17.945In Stock 20.000Expected 12/8/2026	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	17.945In Stock 20.000Expected 12/8/2026	Cut Tape 0,12 € 0,084 € 0,065 € 0,059 € View Reel 0,026 € 0,051 € 0,045 € 0,04 € 0,031 € 0,026 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000
Ferrite Beads 20 OHM Alternate Sizing Guide Below BLM15KD200SN1D Murata Electronics 1: 0,12 € 3.574In Stock 390.000On 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	3.574In Stock 390.000On Order On Order Ship Dates Mfr. No: BLM15KD200SN1D Stock: 3.574 Can Dispatch Immediately On Order: 90.000 Expected 12/11/2026 120.000 Expected 1/27/2027 180.000 Expected 2/1/2027 Factory Lead Time: 16 Weeks	Cut Tape 0,12 € 0,084 € 0,065 € 0,059 € View Reel 0,026 € 0,051 € 0,045 € 0,04 € 0,032 € 0,026 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000
Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below BLM18KG331SN1D Murata Electronics 1: 0,129 € 32.500In Stock 180.000Expected 11/4/2026	Mfr. Part No. BLM18KG331SN1D Mouser Part No 81-BLM18KG331SN1D	Murata Electronics	Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below Learn More about Murata Electronics murata blm18kg ferrite beads	Datasheet	32.500In Stock 180.000Expected 11/4/2026	Cut Tape 0,129 € 0,092 € 0,072 € 0,065 € Reel 0,03 € View 0,055 € 0,049 € 0,042 € 0,027 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below BLM18KG601SN1D Murata Electronics 1: 0,12 € 4.082In 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	4.082In Stock 1.200.000On Order On Order Ship Dates Mfr. No: BLM18KG601SN1D Stock: 4.082 Can Dispatch Immediately On Order: 80.000 Pending 1.120.000 Expected 3/24/2027 Factory Lead Time: 22 Weeks	Cut Tape 0,12 € 0,087 € 0,068 € 0,055 € Reel 0,029 € View 0,052 € 0,046 € 0,041 € 0,027 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads FB SMD 0603inch 220o hm NONAUTO Alternate Sizing Guide Below BLM18SP221SN1D Murata Electronics 1: 0,335 € 6.258In Stock 8.000Expected 12/4/2026	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	6.258In Stock 8.000Expected 12/4/2026	Cut Tape 0,335 € 0,239 € 0,185 € 0,164 € View Reel 0,09 € 0,14 € 0,123 € 0,108 € 0,09 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000
EMI Filter Circuits 16 V 15A BNX028-01L Murata Electronics 1: 5,22 € 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: 8.000 Expected 4/4/2028 3.200 Expected 4/7/2028 6.400 Expected 4/10/2028 Factory Lead Time: 22 Weeks	Cut Tape 5,22 € 4,26 € 3,93 € 3,70 € Reel 2,80 € View 3,47 € 2,99 € 2,70 € MouseReel Available	Min.: 1 Mult.: 1 : 400
Ferrite Beads Chip Ferrite 0805, 4mOhms Res, 30Ohms Imp, 8.5A BLM21SN300SN1D Murata Electronics 1: 0,275 € 319.974On 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	319.974On Order On Order Ship Dates Mfr. No: BLM21SN300SN1D Stock: 0 On Order: 179.974 Expected 12/14/2026 140.000 Expected 2/23/2027 Factory Lead Time: 20 Weeks	Cut Tape 0,275 € 0,193 € 0,15 € 0,133 € Reel 0,082 € View 0,114 € 0,103 € 0,09 € 0,071 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads 180 OHM 25% BLM21SP181SN1D Murata Electronics 1: 0,421 € 128.000Expected 11/3/2026	Mfr. Part No. BLM21SP181SN1D Mouser Part No 81-BLM21SP181SN1D	Murata Electronics	Ferrite Beads 180 OHM 25% Learn More about Murata Electronics murata blm emi filter	Datasheet	128.000Expected 11/3/2026	Cut Tape 0,421 € 0,292 € 0,255 € 0,227 € View Reel 0,116 € 0,20 € 0,17 € 0,15 € 0,136 € 0,116 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below BLM31KN102SN1L Murata Electronics 1: 0,516 € 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 12/7/2026 87.500 TBD Factory Lead Time: 16 Weeks	Cut Tape 0,516 € 0,365 € 0,315 € 0,28 € View Reel 0,15 € 0,249 € 0,211 € 0,184 € 0,173 € 0,15 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Ferrite Beads 120 OHM Alternate Sizing Guide Below BLM31KN121SN1L Murata Electronics 1: 0,516 € 140.010On 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	140.010On Order On Order Ship Dates Mfr. No: BLM31KN121SN1L Stock: 0 On Order: 27.510 Expected 2/2/2027 112.500 TBD Factory Lead Time: 16 Weeks	Cut Tape 0,516 € 0,365 € 0,315 € 0,28 € View Reel 0,147 € 0,249 € 0,211 € 0,184 € 0,173 € 0,147 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Ferrite Beads 270 OHM 4.5A Alternate Sizing Guide Below BLM31KN271SN1L Murata Electronics 1: 0,516 € 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 1/11/2027 232.500 TBD Factory Lead Time: 16 Weeks	Cut Tape 0,516 € 0,365 € 0,315 € 0,28 € View Reel 0,147 € 0,249 € 0,211 € 0,184 € 0,173 € 0,147 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Ferrite Beads 470 OHM Alternate Sizing Guide Below BLM31KN471SN1L Murata Electronics 1: 0,516 € 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 1/11/2027 225.000 TBD Factory Lead Time: 16 Weeks	Cut Tape 0,516 € 0,365 € 0,315 € 0,28 € View Reel 0,147 € 0,249 € 0,211 € 0,184 € 0,173 € 0,147 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below BLM31KN801SN1L Murata Electronics 1: 0,516 € 80.165On 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	80.165On Order On Order Ship Dates Mfr. No: BLM31KN801SN1L Stock: 0 On Order: 2.665 Expected 11/23/2026 77.500 TBD Factory Lead Time: 16 Weeks	Cut Tape 0,516 € 0,365 € 0,315 € 0,28 € View Reel 0,147 € 0,249 € 0,211 € 0,173 € 0,147 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Ferrite Beads 70 OHM Alternate Sizing Guide Below BLM21SP700SN1D Murata Electronics 1: 0,421 € 39.173On 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	39.173On Order On Order Ship Dates Mfr. No: BLM21SP700SN1D Stock: 0 On Order: 11.173 Expected 11/5/2026 8.000 Expected 12/11/2026 20.000 Expected 12/24/2026 Factory Lead Time: 20 Weeks	Cut Tape 0,421 € 0,292 € 0,255 € 0,227 € View Reel 0,116 € 0,20 € 0,17 € 0,15 € 0,136 € 0,116 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Ferrite Beads BLM02KX100SN1D Murata Electronics 15.000: 0,062 € 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 0,062 €	Min.: 15.000 Mult.: 15.000 : 15.000

Power Supply Line Noise Suppression for Home Audio

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