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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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Ferrite Beads BLM02KX180SN1D Murata Electronics 1: $0.25 43,000In Stock	Mfr. Part No. BLM02KX180SN1D Mouser Part No 81-BLM02KX180SN1D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata blm emi filter	Datasheet	43,000In Stock	Cut Tape $0.25 $0.176 $0.154 $0.137 View Reel $0.064 $0.122 $0.105 $0.092 $0.081 $0.064 $0.064 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
Ferrite Beads 30 OHM Alternate Sizing Guide Below BLM18SP300SN1D Murata Electronics 1: $0.20 89,478In Stock	Mfr. Part No. BLM18SP300SN1D Mouser Part No 81-BLM18SP300SN1D	Murata Electronics	Ferrite Beads 30 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	89,478In Stock	Cut Tape $0.20 $0.137 $0.119 $0.107 View Reel $0.06 $0.097 $0.084 $0.076 $0.067 $0.06 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 600 OHM Alternate Sizing Guide Below BLM21SP601SN1D Murata Electronics 1: $0.311 422,828In Stock	Mfr. Part No. BLM21SP601SN1D Mouser Part No 81-BLM21SP601SN1D	Murata Electronics	Ferrite Beads 600 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	422,828In Stock	Cut Tape $0.311 $0.217 $0.19 $0.17 View Reel $0.105 $0.151 $0.129 $0.114 $0.105 $0.105 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
EMI Filter Circuits 500M Ohm 100Volts 20A BNX02301L Murata Electronics 1: $5.23 18,473In Stock 13,600On Order	Mfr. Part No. BNX02301L Mouser Part No 81-BNX023-01L	Murata Electronics	EMI Filter Circuits 500M Ohm 100Volts 20A Learn More about Murata Electronics murata bnx series	Datasheet	18,473In Stock 13,600On Order On Order Ship Dates Mfr. No: BNX02301L Stock: 18,473 Can Dispatch Immediately On Order: 400 Pending 13,200 Expected 2028/03/14 Factory Lead Time: 12 Weeks	Cut Tape $5.23 $4.27 $3.94 $3.71 Reel $2.83 View $3.49 $3.00 $2.66 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 4.7 UF 50V 20A BNX024H01L Murata Electronics 1: $6.07 12,750In Stock	Mfr. Part No. BNX024H01L Mouser Part No 81-BNX024H01L	Murata Electronics	EMI Filter Circuits 4.7 UF 50V 20A Learn More about Murata Electronics murata bnx series	Datasheet	12,750In Stock	Cut Tape $6.07 $5.41 $4.81 $4.54 Reel $3.26 View $4.18 $3.65 $3.14 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 10.0 UF 50V 20A BNX026H01L Murata Electronics 1: $6.84 16,036In Stock 13,200Expected 2028/03/14	Mfr. Part No. BNX026H01L Mouser Part No 81-BNX026H01L	Murata Electronics	EMI Filter Circuits 10.0 UF 50V 20A Learn More about Murata Electronics murata bnx series	Datasheet	16,036In Stock 13,200Expected 2028/03/14	Cut Tape $6.84 $5.58 $4.97 $4.70 Reel $3.68 View $4.45 $3.92 $3.59 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 22.0 UF 16V 20A BNX027H01L Murata Electronics 1: $6.84 5,292In Stock	Mfr. Part No. BNX027H01L Mouser Part No 81-BNX027H01L	Murata Electronics	EMI Filter Circuits 22.0 UF 16V 20A Learn More about Murata Electronics murata bnx series	Datasheet	5,292In Stock	Cut Tape $6.84 $5.58 $5.14 $4.83 Reel $3.68 View $4.55 $3.90 $3.59 MouseReel Available	Min.: 1 Mult.: 1 : 400
Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below BLM18KG601SN1D Murata Electronics 1: $0.10 709,711In Stock 520,000Expected 2026/10/20	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	709,711In Stock 520,000Expected 2026/10/20	Cut Tape $0.10 $0.064 $0.05 $0.045 View Reel $0.021 $0.04 $0.035 $0.031 $0.021 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 1000 OHM Alternate Sizing Guide Below BLM18KG102SN1D Murata Electronics 1: $0.10 129,768In Stock 140,000Expected 2026/11/24	Mfr. Part No. BLM18KG102SN1D Mouser Part No 81-BLM18KG102SN1D	Murata Electronics	Ferrite Beads 1000 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm18kg ferrite beads	Datasheet	129,768In Stock 140,000Expected 2026/11/24	Cut Tape $0.10 $0.064 $0.05 $0.045 Reel $0.023 View $0.04 $0.035 $0.031 $0.02 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below BLM18KG221SN1D Murata Electronics 1: $0.10 458,086In Stock 240,000Expected 2026/12/07	Mfr. Part No. BLM18KG221SN1D Mouser Part No 81-BLM18KG221SN1D	Murata Electronics	Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below Learn More about Murata Electronics murata blm18kg ferrite beads	Datasheet	458,086In Stock 240,000Expected 2026/12/07	Cut Tape $0.10 $0.064 $0.05 $0.045 Reel $0.022 View $0.04 $0.035 $0.031 $0.021 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below BLM18KG471SN1D Murata Electronics 1: $0.10 117,845In Stock 120,000Expected 2026/10/13	Mfr. Part No. BLM18KG471SN1D Mouser Part No 81-BLM18KG471SN1D	Murata Electronics	Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below Learn More about Murata Electronics murata blm18kg ferrite beads	Datasheet	117,845In Stock 120,000Expected 2026/10/13	Cut Tape $0.10 $0.064 $0.05 $0.045 Reel $0.022 View $0.04 $0.035 $0.03 $0.021 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads FB SMD 0603inch 100o hm NONAUTO Alternate Sizing Guide Below BLM18SP101SN1D Murata Electronics 1: $0.25 26,481In Stock	Mfr. Part No. BLM18SP101SN1D Mouser Part No 81-BLM18SP101SN1D	Murata Electronics	Ferrite Beads FB SMD 0603inch 100o hm NONAUTO Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	26,481In Stock	Cut Tape $0.25 $0.176 $0.154 $0.137 View Reel $0.06 $0.123 $0.105 $0.093 $0.081 $0.06 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 330 OHM Alternate Sizing Guide Below BLM21SP331SN1D Murata Electronics 1: $0.311 23,283In 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	23,283In Stock 56,000On Order On Order Ship Dates Mfr. No: BLM21SP331SN1D Stock: 23,283 Can Dispatch Immediately On Order: 16,000 Expected 2026/11/19 40,000 Expected 2026/11/24 Factory Lead Time: 11 Weeks	Cut Tape $0.311 $0.217 $0.19 $0.17 View Reel $0.08 $0.151 $0.129 $0.11 $0.10 $0.08 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Common Mode Chokes / Filters 800 NH PLT10HH450180PNL Murata Electronics 1: $10.05 1,015In Stock	Mfr. Part No. PLT10HH450180PNL Mouser Part No 81-PLT10HH450180PNL	Murata Electronics	Common Mode Chokes / Filters 800 NH Learn More about Murata Electronics murataplt10hh	Datasheet	1,015In Stock	Cut Tape $10.05 $8.39 $7.76 $7.35 Reel $6.72 $6.25 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 9 UH PLT10HH501100PNL Murata Electronics 1: $4.52 3,677In Stock	Mfr. Part No. PLT10HH501100PNL Mouser Part No 81-PLT10HH501100PNL	Murata Electronics	Common Mode Chokes / Filters 9 UH Learn More about Murata Electronics murataplt10hh	Datasheet	3,677In Stock	Cut Tape $4.52 $3.72 $3.44 $3.26 Reel $2.97 View $2.70 $2.52 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 14 UH 100V 6A PLT10HH9016R0PNL Murata Electronics 1: $4.52 1,541In Stock	Mfr. Part No. PLT10HH9016R0PNL Mouser Part No 81-PLT10HH9016R0PNL	Murata Electronics	Common Mode Chokes / Filters 14 UH 100V 6A Learn More about Murata Electronics murataplt10hh	Datasheet	1,541In Stock	Cut Tape $4.52 $3.72 $3.44 $3.26 Reel $2.97 View $2.71 $2.52 MouseReel Available	Min.: 1 Mult.: 1 : 125
Ferrite Beads 1000 OHM Alternate Sizing Guide Below BLM21SP102SN1D Murata Electronics 1: $0.311 150,237In Stock	Mfr. Part No. BLM21SP102SN1D Mouser Part No 81-BLM21SP102SN1D	Murata Electronics	Ferrite Beads 1000 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	150,237In Stock	Cut Tape $0.311 $0.217 $0.19 $0.17 View Reel $0.107 $0.151 $0.129 $0.113 $0.107 $0.107 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 470 OHM Alternate Sizing Guide Below BLM21SP471SN1D Murata Electronics 1: $0.33 37,350In Stock 28,000Expected 2027/03/22	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	37,350In Stock 28,000Expected 2027/03/22	Cut Tape $0.33 $0.226 $0.195 $0.176 View Reel $0.079 $0.156 $0.133 $0.117 $0.081 $0.079 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below BLM31SN500SN1L Murata Electronics 1: $0.42 14,695In Stock 338,350On Order	Mfr. Part No. BLM31SN500SN1L Mouser Part No 81-BLM31SN500SN1L	Murata Electronics	Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below Learn More about Murata Electronics murata blm sn ferrite beads	Datasheet	14,695In Stock 338,350On Order On Order Ship Dates Mfr. No: BLM31SN500SN1L Stock: 14,695 Can Dispatch Immediately On Order: 120,000 Expected 2026/10/02 83,350 Expected 2026/10/16 135,000 Expected 2027/02/25 Factory Lead Time: 19 Weeks	Cut Tape $0.42 $0.293 $0.252 $0.213 View Reel $0.126 $0.192 $0.167 $0.149 $0.126 $0.126 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
EMI Filter Circuits 35 DB 50V 20A SMD BNX022-01L Murata Electronics 1: $4.88 215In Stock 60,400On Order	Mfr. Part No. BNX022-01L Mouser Part No 81-BNX022-01L	Murata Electronics	EMI Filter Circuits 35 DB 50V 20A SMD Learn More about Murata Electronics murata bnx series	Datasheet	215In Stock 60,400On Order On Order Ship Dates Mfr. No: BNX022-01L Stock: 215 Can Dispatch Immediately On Order: 13,600 Expected 2026/10/01 28,400 Expected 2026/12/18 18,400 Expected 2028/03/14 Factory Lead Time: 13 Weeks	Cut Tape $4.88 $3.98 $3.68 $3.47 Reel $2.62 View $3.26 $2.80 $2.47 MouseReel Available	Min.: 1 Mult.: 1 : 400
Common Mode Chokes / Filters 100 OHM 300V 15A 2UH PLT10HH101150PNL Murata Electronics 1: $10.33 1,711In Stock 2,250Expected 2027/03/15	Mfr. Part No. PLT10HH101150PNL Mouser Part No 81-PLT10HH101150PNL	Murata Electronics	Common Mode Chokes / Filters 100 OHM 300V 15A 2UH Learn More about Murata Electronics murataplt10hh	Datasheet	1,711In Stock 2,250Expected 2027/03/15	Cut Tape $10.33 $8.61 $7.97 $7.64 Reel $7.12 View $6.49 $6.36 Quote MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 10M OHM 100V 6A 20UH PLT10HH1026R0PNL Murata Electronics 1: $4.52 2,831In Stock 5,625On Order	Mfr. Part No. PLT10HH1026R0PNL Mouser Part No 81-PLT10HH1026R0PNL	Murata Electronics	Common Mode Chokes / Filters 10M OHM 100V 6A 20UH Learn More about Murata Electronics murataplt10hh	Datasheet	2,831In Stock 5,625On Order On Order Ship Dates Mfr. No: PLT10HH1026R0PNL Stock: 2,831 Can Dispatch Immediately On Order: 2,500 Expected 2026/10/01 3,125 Expected 2027/03/04 Factory Lead Time: 17 Weeks	Cut Tape $4.52 $3.72 $3.44 $3.26 Reel $2.97 View $2.71 $2.52 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 6 UH PLT10HH401100PNL Murata Electronics 1: $4.79 1,958In Stock	Mfr. Part No. PLT10HH401100PNL Mouser Part No 81-PLT10HH401100PNL	Murata Electronics	Common Mode Chokes / Filters 6 UH Learn More about Murata Electronics murataplt10hh	Datasheet	1,958In Stock	Cut Tape $4.79 $3.94 $3.65 $3.44 Reel $3.15 View $2.86 $2.67 $2.61 MouseReel Available	Min.: 1 Mult.: 1 : 125
Ferrite Beads 120 OHM Alternate Sizing Guide Below BLM15KD121SN1D Murata Electronics 1: $0.10 18,633In Stock 20,000Expected 2026/11/27	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	18,633In Stock 20,000Expected 2026/11/27	Cut Tape $0.10 $0.067 $0.053 $0.048 View Reel $0.02 $0.041 $0.037 $0.033 $0.024 $0.02 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Ferrite Beads 20 OHM Alternate Sizing Guide Below BLM15KD200SN1D Murata Electronics 1: $0.10 61,074In Stock 110,000Expected 2026/12/01	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	61,074In Stock 110,000Expected 2026/12/01	Cut Tape $0.10 $0.067 $0.053 $0.048 View Reel $0.02 $0.041 $0.035 $0.033 $0.024 $0.02 MouseReel Available	Min.: 1 Mult.: 1 : 10,000

Power Supply Line Noise Suppression for Home Audio

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