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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 (CAD) Filter the results in the table by unit price based on your quantity.	Qty.
Ferrite Beads BLM02KX180SN1D Murata Electronics 1: $0.36 43,000In Stock	Mfr. Part # BLM02KX180SN1D Mouser Part # 81-BLM02KX180SN1D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata blm emi filter	Datasheet	43,000In Stock	Cut Tape $0.36 $0.253 $0.22 $0.197 View Reel $0.092 $0.176 $0.151 $0.132 $0.117 $0.092 $0.092 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
Ferrite Beads 30 OHM Alternate Sizing Guide Below BLM18SP300SN1D Murata Electronics 1: $0.288 89,478In Stock	Mfr. Part # BLM18SP300SN1D Mouser Part # 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 $0.288 $0.197 $0.171 $0.154 View Reel $0.084 $0.14 $0.121 $0.109 $0.098 $0.084 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 600 OHM Alternate Sizing Guide Below BLM21SP601SN1D Murata Electronics 1: $0.446 423,078In Stock	Mfr. Part # BLM21SP601SN1D Mouser Part # 81-BLM21SP601SN1D	Murata Electronics	Ferrite Beads 600 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	423,078In Stock	Cut Tape $0.446 $0.314 $0.274 $0.245 View Reel $0.108 $0.217 $0.186 $0.164 $0.109 $0.108 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
EMI Filter Circuits 500M Ohm 100Volts 20A BNX02301L Murata Electronics 1: $7.53 19,666In Stock 13,600On Order	Mfr. Part # BNX02301L Mouser Part # 81-BNX023-01L	Murata Electronics	EMI Filter Circuits 500M Ohm 100Volts 20A Learn More about Murata Electronics murata bnx series	Datasheet	19,666In Stock 13,600On Order On Order Ship Dates Mfr. #: BNX02301L Stock: 19,666 Can Ship Immediately On Order: 400 Pending 13,200 Expected 2028-03-03 Factory Lead-Time: 12 Weeks	Cut Tape $7.53 $6.15 $5.67 $5.34 Reel $4.06 View $5.03 $4.32 $3.74 $3.70 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 4.7 UF 50V 20A BNX024H01L Murata Electronics 1: $8.74 14,380In Stock	Mfr. Part # BNX024H01L Mouser Part # 81-BNX024H01L	Murata Electronics	EMI Filter Circuits 4.7 UF 50V 20A Learn More about Murata Electronics murata bnx series	Datasheet	14,380In Stock	Cut Tape $8.74 $7.79 $6.93 $6.54 Reel $4.69 View $6.02 $5.26 $4.36 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 10.0 UF 50V 20A BNX026H01L Murata Electronics 1: $9.85 17,517In Stock 13,200Expected 2028-03-03	Mfr. Part # BNX026H01L Mouser Part # 81-BNX026H01L	Murata Electronics	EMI Filter Circuits 10.0 UF 50V 20A Learn More about Murata Electronics murata bnx series	Datasheet	17,517In Stock 13,200Expected 2028-03-03	Cut Tape $9.85 $8.04 $7.14 $6.77 Reel $5.30 View $6.41 $5.64 $5.00 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 22.0 UF 16V 20A BNX027H01L Murata Electronics 1: $9.85 5,772In Stock	Mfr. Part # BNX027H01L Mouser Part # 81-BNX027H01L	Murata Electronics	EMI Filter Circuits 22.0 UF 16V 20A Learn More about Murata Electronics murata bnx series	Datasheet	5,772In Stock	Cut Tape $9.85 $8.04 $7.40 $6.96 Reel $5.30 View $6.55 $5.60 $4.98 MouseReel Available	Min.: 1 Mult.: 1 : 400
Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below BLM18KG601SN1D Murata Electronics 1: $0.144 724,831In Stock 520,000Expected 2026-10-20	Mfr. Part # BLM18KG601SN1D Mouser Part # 81-BLM18KG601SN1D	Murata Electronics	Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below Learn More about Murata Electronics murata blm18kg ferrite beads	Datasheet	724,831In Stock 520,000Expected 2026-10-20	Cut Tape $0.144 $0.092 $0.072 $0.065 Reel $0.03 View $0.056 $0.05 $0.045 $0.027 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 1000 OHM Alternate Sizing Guide Below BLM18KG102SN1D Murata Electronics 1: $0.144 178,481In Stock 140,000Expected 2026-11-24	Mfr. Part # BLM18KG102SN1D Mouser Part # 81-BLM18KG102SN1D	Murata Electronics	Ferrite Beads 1000 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm18kg ferrite beads	Datasheet	178,481In Stock 140,000Expected 2026-11-24	Cut Tape $0.144 $0.092 $0.072 $0.065 Reel $0.033 View $0.056 $0.05 $0.045 $0.029 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below BLM18KG221SN1D Murata Electronics 1: $0.144 461,946In Stock 240,000Expected 2026-12-07	Mfr. Part # BLM18KG221SN1D Mouser Part # 81-BLM18KG221SN1D	Murata Electronics	Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below Learn More about Murata Electronics murata blm18kg ferrite beads	Datasheet	461,946In Stock 240,000Expected 2026-12-07	Cut Tape $0.144 $0.092 $0.072 $0.065 Reel $0.032 View $0.056 $0.05 $0.045 $0.029 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below BLM18KG471SN1D Murata Electronics 1: $0.144 117,755In Stock 120,000Expected 2026-10-08	Mfr. Part # BLM18KG471SN1D Mouser Part # 81-BLM18KG471SN1D	Murata Electronics	Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below Learn More about Murata Electronics murata blm18kg ferrite beads	Datasheet	117,755In Stock 120,000Expected 2026-10-08	Cut Tape $0.144 $0.092 $0.072 $0.065 Reel $0.032 View $0.056 $0.05 $0.043 $0.029 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads FB SMD 0603inch 100o hm NONAUTO Alternate Sizing Guide Below BLM18SP101SN1D Murata Electronics 1: $0.36 26,516In Stock	Mfr. Part # BLM18SP101SN1D Mouser Part # 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	26,516In Stock	Cut Tape $0.36 $0.253 $0.22 $0.197 View Reel $0.085 $0.177 $0.151 $0.134 $0.117 $0.085 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 330 OHM Alternate Sizing Guide Below BLM21SP331SN1D Murata Electronics 1: $0.446 23,283In Stock 56,000On Order	Mfr. Part # BLM21SP331SN1D Mouser Part # 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. #: BLM21SP331SN1D Stock: 23,283 Can Ship Immediately On Order: 16,000 Expected 2026-11-19 40,000 Expected 2026-11-24 Factory Lead-Time: 11 Weeks	Cut Tape $0.446 $0.314 $0.274 $0.245 View Reel $0.115 $0.217 $0.186 $0.158 $0.144 $0.115 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
EMI Filter Circuits 6.3 V 15A BNX029-01L Murata Electronics 1: $9.26 278In Stock 6,000On Order	Mfr. Part # BNX029-01L Mouser Part # 81-BNX029-01L	Murata Electronics	EMI Filter Circuits 6.3 V 15A Learn More about Murata Electronics murata bnx series	Datasheet	278In Stock 6,000On Order On Order Ship Dates Mfr. #: BNX029-01L Stock: 278 Can Ship Immediately On Order: 1,600 Expected 2028-03-03 4,400 Expected 2028-03-06 Factory Lead-Time: 12 Weeks	Cut Tape $9.26 $7.56 $6.97 $6.55 Reel $4.98 View $6.16 $5.30 $4.61 MouseReel Available	Min.: 1 Mult.: 1 : 400
Common Mode Chokes / Filters 800 NH PLT10HH450180PNL Murata Electronics 1: $14.47 1,015In Stock	Mfr. Part # PLT10HH450180PNL Mouser Part # 81-PLT10HH450180PNL	Murata Electronics	Common Mode Chokes / Filters 800 NH Learn More about Murata Electronics murataplt10hh	Datasheet	1,015In Stock	Cut Tape $14.47 $12.07 $11.17 $10.58 Reel $9.68 View $8.81 $8.64 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 9 UH PLT10HH501100PNL Murata Electronics 1: $6.51 3,677In Stock	Mfr. Part # PLT10HH501100PNL Mouser Part # 81-PLT10HH501100PNL	Murata Electronics	Common Mode Chokes / Filters 9 UH Learn More about Murata Electronics murataplt10hh	Datasheet	3,677In Stock	Cut Tape $6.51 $5.36 $4.95 $4.68 Reel $4.28 View $3.89 $3.63 $3.53 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 14 UH 100V 6A PLT10HH9016R0PNL Murata Electronics 1: $6.51 1,551In Stock	Mfr. Part # PLT10HH9016R0PNL Mouser Part # 81-PLT10HH9016R0PNL	Murata Electronics	Common Mode Chokes / Filters 14 UH 100V 6A Learn More about Murata Electronics murataplt10hh	Datasheet	1,551In Stock	Cut Tape $6.51 $5.36 $4.95 $4.68 Reel $4.28 View $3.90 $3.63 $3.53 MouseReel Available	Min.: 1 Mult.: 1 : 125
Ferrite Beads 1000 OHM Alternate Sizing Guide Below BLM21SP102SN1D Murata Electronics 1: $0.446 154,502In Stock	Mfr. Part # BLM21SP102SN1D Mouser Part # 81-BLM21SP102SN1D	Murata Electronics	Ferrite Beads 1000 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	154,502In Stock	Cut Tape $0.446 $0.314 $0.274 $0.245 View Reel $0.108 $0.217 $0.186 $0.163 $0.109 $0.108 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 470 OHM Alternate Sizing Guide Below BLM21SP471SN1D Murata Electronics 1: $0.475 37,350In Stock	Mfr. Part # BLM21SP471SN1D Mouser Part # 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	Cut Tape $0.475 $0.324 $0.281 $0.252 View Reel $0.109 $0.225 $0.192 $0.168 $0.117 $0.109 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below BLM31SN500SN1L Murata Electronics 1: $0.605 17,710In Stock 338,260On Order	Mfr. Part # BLM31SN500SN1L Mouser Part # 81-BLM31SN500SN1L	Murata Electronics	Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below Learn More about Murata Electronics murata blm sn ferrite beads	Datasheet	17,710In Stock 338,260On Order On Order Ship Dates Mfr. #: BLM31SN500SN1L Stock: 17,710 Can Ship Immediately On Order: 120,000 Expected 2026-10-02 83,260 Expected 2026-10-16 135,000 Expected 2027-02-25 Factory Lead-Time: 19 Weeks	Cut Tape $0.605 $0.422 $0.363 $0.307 View Reel $0.145 $0.276 $0.24 $0.215 $0.154 $0.145 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
EMI Filter Circuits 35 DB 50V 20A SMD BNX022-01L Murata Electronics 1: $7.03 596In Stock 60,400On Order	Mfr. Part # BNX022-01L Mouser Part # 81-BNX022-01L	Murata Electronics	EMI Filter Circuits 35 DB 50V 20A SMD Learn More about Murata Electronics murata bnx series	Datasheet	596In Stock 60,400On Order On Order Ship Dates Mfr. #: BNX022-01L Stock: 596 Can Ship Immediately On Order: 13,600 Expected 2026-10-01 28,400 Expected 2026-12-18 18,400 Expected 2028-03-03 Factory Lead-Time: 13 Weeks	Cut Tape $7.03 $5.73 $5.28 $4.98 Reel $3.77 View $4.68 $4.03 $3.48 $3.41 MouseReel Available	Min.: 1 Mult.: 1 : 400
Common Mode Chokes / Filters 100 OHM 300V 15A 2UH PLT10HH101150PNL Murata Electronics 1: $14.86 1,026In Stock 3,250On Order	Mfr. Part # PLT10HH101150PNL Mouser Part # 81-PLT10HH101150PNL	Murata Electronics	Common Mode Chokes / Filters 100 OHM 300V 15A 2UH Learn More about Murata Electronics murataplt10hh	Datasheet	1,026In Stock 3,250On Order On Order Ship Dates Mfr. #: PLT10HH101150PNL Stock: 1,026 Can Ship Immediately On Order: 1,000 Expected 2026-10-02 2,250 Expected 2027-03-15 Factory Lead-Time: 26 Weeks	Cut Tape $14.86 $12.40 $11.48 $11.00 Reel $10.25 View $9.35 $9.16 Quote MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 10M OHM 100V 6A 20UH PLT10HH1026R0PNL Murata Electronics 1: $6.51 2,831In Stock 5,625On Order	Mfr. Part # PLT10HH1026R0PNL Mouser Part # 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. #: PLT10HH1026R0PNL Stock: 2,831 Can Ship Immediately On Order: 2,500 Expected 2026-10-01 3,125 Expected 2027-03-04 Factory Lead-Time: 17 Weeks	Cut Tape $6.51 $5.36 $4.95 $4.68 Reel $4.28 View $3.90 $3.63 $3.53 $3.51 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 6 UH PLT10HH401100PNL Murata Electronics 1: $6.90 1,966In Stock	Mfr. Part # PLT10HH401100PNL Mouser Part # 81-PLT10HH401100PNL	Murata Electronics	Common Mode Chokes / Filters 6 UH Learn More about Murata Electronics murataplt10hh	Datasheet	1,966In Stock	Cut Tape $6.90 $5.67 $5.26 $4.95 Reel $4.54 View $4.12 $3.84 $3.74 MouseReel Available	Min.: 1 Mult.: 1 : 125
Ferrite Beads 120 OHM Alternate Sizing Guide Below BLM15KD121SN1D Murata Electronics 1: $0.144 18,655In Stock 20,000Expected 2026-11-27	Mfr. Part # BLM15KD121SN1D Mouser Part # 81-BLM15KD121SN1D	Murata Electronics	Ferrite Beads 120 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	18,655In Stock 20,000Expected 2026-11-27	Cut Tape $0.144 $0.098 $0.076 $0.069 View Reel $0.029 $0.059 $0.053 $0.046 $0.035 $0.029 MouseReel Available	Min.: 1 Mult.: 1 : 10,000

Power Supply Line Noise Suppression for Home Audio

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