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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: $0.29 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 $0.29 $0.203 $0.158 $0.141 View Reel $0.07 $0.12 $0.106 $0.093 $0.085 $0.07 $0.07 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
Ferrite Beads 30 OHM Alternate Sizing Guide Below BLM18SP300SN1D Murata Electronics 1: $0.39 86,729In 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	86,729In Stock	Cut Tape $0.39 $0.278 $0.215 $0.191 Reel $0.10 View $0.163 $0.143 $0.125 $0.099 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 1000 OHM Alternate Sizing Guide Below BLM21SP102SN1D Murata Electronics 1: $0.49 147,184In 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	147,184In Stock	Cut Tape $0.49 $0.34 $0.296 $0.264 View Reel $0.129 $0.233 $0.198 $0.165 $0.148 $0.129 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 600 OHM Alternate Sizing Guide Below BLM21SP601SN1D Murata Electronics 1: $0.49 414,482In 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	414,482In Stock	Cut Tape $0.49 $0.34 $0.296 $0.264 View Reel $0.129 $0.233 $0.198 $0.174 $0.158 $0.129 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below BLM31SN500SN1L Murata Electronics 1: $0.63 192,696In Stock 135,000Expected 2/25/2027	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	192,696In Stock 135,000Expected 2/25/2027	Cut Tape $0.63 $0.44 $0.38 $0.339 View Reel $0.182 $0.30 $0.246 $0.21 $0.196 $0.182 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
EMI Filter Circuits 500M Ohm 100Volts 20A BNX02301L Murata Electronics 1: $5.23 15,707In Stock 13,600On Order End of Life	Mfr. Part # BNX02301L Mouser Part # 81-BNX023-01L End of Life	Murata Electronics	EMI Filter Circuits 500M Ohm 100Volts 20A Learn More about Murata Electronics murata bnx series	Datasheet	15,707In Stock 13,600On Order On Order Ship Dates Mfr. #: BNX02301L Stock: 15,707 Can Ship Immediately On Order: 400 Pending 13,200 Expected 4/7/2028 Factory Lead-Time: 12 Weeks	Cut Tape $5.23 $4.27 $3.94 $3.71 Reel $2.82 View $3.49 $3.00 $2.60 $2.57 MouseReel Available	Min.: 1 Mult.: 1 : 400
Common Mode Chokes / Filters 100 OHM 300V 15A 2UH PLT10HH101150PNL Murata Electronics 1: $10.51 1,446In Stock 4,250On 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	1,446In Stock 4,250On Order On Order Ship Dates Mfr. #: PLT10HH101150PNL Stock: 1,446 Can Ship Immediately On Order: 2,000 Expected 1/8/2027 2,250 Expected 3/15/2027 Factory Lead-Time: 12 Weeks	Cut Tape $10.51 $8.64 $8.00 $7.64 Reel $7.12 View $6.49 $6.36 $6.00 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 10M OHM 100V 6A 20UH PLT10HH1026R0PNL Murata Electronics 1: $4.52 4,272In Stock 7,500On 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	4,272In Stock 7,500On Order On Order Ship Dates Mfr. #: PLT10HH1026R0PNL Stock: 4,272 Can Ship Immediately On Order: 4,375 Expected 1/7/2027 3,125 Expected 3/4/2027 Factory Lead-Time: 12 Weeks	Cut Tape $4.52 $3.72 $3.44 $3.25 Reel $2.97 View $2.71 $2.52 $2.45 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 6 UH PLT10HH401100PNL Murata Electronics 1: $4.79 1,604In Stock 1,000Expected 12/29/2026	Mfr. Part # PLT10HH401100PNL Mouser Part # 81-PLT10HH401100PNL	Murata Electronics	Common Mode Chokes / Filters 6 UH Learn More about Murata Electronics murataplt10hh	Datasheet	1,604In Stock 1,000Expected 12/29/2026	Cut Tape $4.79 $3.94 $3.65 $3.44 Reel $3.15 View $2.85 $2.67 $2.59 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 9 UH PLT10HH501100PNL Murata Electronics 1: $4.52 3,110In Stock	Mfr. Part # PLT10HH501100PNL Mouser Part # 81-PLT10HH501100PNL	Murata Electronics	Common Mode Chokes / Filters 9 UH Learn More about Murata Electronics murataplt10hh	Datasheet	3,110In Stock	Cut Tape $4.52 $3.72 $3.44 $3.25 Reel $2.97 View $2.71 $2.52 $2.45 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 14 UH 100V 6A PLT10HH9016R0PNL Murata Electronics 1: $4.52 1,097In Stock 875Expected 1/14/2027	Mfr. Part # PLT10HH9016R0PNL Mouser Part # 81-PLT10HH9016R0PNL	Murata Electronics	Common Mode Chokes / Filters 14 UH 100V 6A Learn More about Murata Electronics murataplt10hh	Datasheet	1,097In Stock 875Expected 1/14/2027	Cut Tape $4.52 $3.72 $3.44 $3.25 Reel $3.08 View $2.86 $2.67 $2.59 MouseReel Available	Min.: 1 Mult.: 1 : 125
EMI Filter Circuits 35 DB 50V 20A SMD BNX022-01L Murata Electronics 1: $4.88 9,089In Stock 46,800On Order End of Life	Mfr. Part # BNX022-01L Mouser Part # 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	9,089In Stock 46,800On Order On Order Ship Dates Mfr. #: BNX022-01L Stock: 9,089 Can Ship Immediately On Order: 18,400 Expected 4/7/2028 28,400 Expected 4/10/2028 Factory Lead-Time: 22 Weeks	Cut Tape $4.88 $3.98 $3.46 $3.25 Reel $2.62 View $2.80 $2.42 $2.37 $2.36 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 4.7 UF 50V 20A BNX024H01L Murata Electronics 1: $6.07 10,249In Stock End of Life	Mfr. Part # BNX024H01L Mouser Part # 81-BNX024H01L End of Life	Murata Electronics	EMI Filter Circuits 4.7 UF 50V 20A Learn More about Murata Electronics murata bnx series	Datasheet	10,249In Stock	Cut Tape $6.07 $5.41 $4.81 $4.54 Reel $3.26 View $4.18 $3.65 $3.03 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 10.0 UF 25V 20A BNX025H01L Murata Electronics 1: $6.43 4,473In Stock 22,000On Order End of Life	Mfr. Part # BNX025H01L Mouser Part # 81-BNX025H01L End of Life	Murata Electronics	EMI Filter Circuits 10.0 UF 25V 20A Learn More about Murata Electronics murata bnx series	Datasheet	4,473In Stock 22,000On Order On Order Ship Dates Mfr. #: BNX025H01L Stock: 4,473 Can Ship Immediately On Order: 10,000 Expected 11/10/2026 12,000 Expected 4/10/2028 Factory Lead-Time: 22 Weeks	Cut Tape $6.43 $5.25 $4.84 $4.55 Reel $3.46 View $4.25 $3.68 $3.42 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 10.0 UF 50V 20A BNX026H01L Murata Electronics 1: $6.84 9,042In Stock 34,800On Order End of Life	Mfr. Part # BNX026H01L Mouser Part # 81-BNX026H01L End of Life	Murata Electronics	EMI Filter Circuits 10.0 UF 50V 20A Learn More about Murata Electronics murata bnx series	Datasheet	9,042In Stock 34,800On Order On Order Ship Dates Mfr. #: BNX026H01L Stock: 9,042 Can Ship Immediately On Order: 13,200 Expected 4/7/2028 21,600 Expected 4/10/2028 Factory Lead-Time: 22 Weeks	Cut Tape $6.84 $5.58 $4.96 $4.70 Reel $3.68 View $4.45 $3.92 $3.47 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 22.0 UF 16V 20A BNX027H01L Murata Electronics 1: $6.84 4,494In Stock End of Life	Mfr. Part # BNX027H01L Mouser Part # 81-BNX027H01L End of Life	Murata Electronics	EMI Filter Circuits 22.0 UF 16V 20A Learn More about Murata Electronics murata bnx series	Datasheet	4,494In Stock	Cut Tape $6.84 $5.58 $5.14 $4.83 Reel $3.68 View $4.55 $3.89 $3.46 MouseReel Available	Min.: 1 Mult.: 1 : 400
Ferrite Beads 30 OHM Alternate Sizing Guide Below BLM15KD300SN1D Murata Electronics 1: $0.14 47,135In Stock	Mfr. Part # BLM15KD300SN1D Mouser Part # 81-BLM15KD300SN1D	Murata Electronics	Ferrite Beads 30 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	47,135In Stock	Cut Tape $0.14 $0.098 $0.076 $0.069 View Reel $0.029 $0.059 $0.052 $0.046 $0.037 $0.029 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Ferrite Beads 1000 OHM Alternate Sizing Guide Below BLM18KG102SN1D Murata Electronics 1: $0.10 108,031In Stock 280,000On Order	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	108,031In Stock 280,000On Order On Order Ship Dates Mfr. #: BLM18KG102SN1D Stock: 108,031 Can Ship Immediately On Order: 140,000 Expected 12/11/2026 140,000 Expected 12/15/2026 Factory Lead-Time: 22 Weeks	Cut Tape $0.10 $0.064 $0.05 $0.045 View Reel $0.03 $0.039 $0.035 $0.031 $0.03 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below BLM18KG221SN1D Murata Electronics 1: $0.14 390,431In Stock 240,000Expected 12/7/2026	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	390,431In Stock 240,000Expected 12/7/2026	Cut Tape $0.14 $0.101 $0.079 $0.071 Reel $0.034 View $0.061 $0.054 $0.048 $0.031 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below BLM18KG471SN1D Murata Electronics 1: $0.10 232,682In Stock	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	232,682In Stock	Cut Tape $0.10 $0.064 $0.05 $0.045 View Reel $0.03 $0.039 $0.035 $0.031 $0.03 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 22 OHM Alternate Sizing Guide Below BLM18SD220SN1D Murata Electronics 1: $0.17 84,385In Stock 68,000Expected 12/14/2026	Mfr. Part # BLM18SD220SN1D Mouser Part # 81-BLM18SD220SN1D	Murata Electronics	Ferrite Beads 22 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	84,385In Stock 68,000Expected 12/14/2026	Cut Tape $0.17 $0.123 $0.096 $0.086 View Reel $0.065 $0.074 $0.066 $0.065 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 33 OHM Alternate Sizing Guide Below BLM18SG330SN1D Murata Electronics 1: $0.30 18,732In Stock 40,000Expected 11/19/2026	Mfr. Part # BLM18SG330SN1D Mouser Part # 81-BLM18SG330SN1D	Murata Electronics	Ferrite Beads 33 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	18,732In Stock 40,000Expected 11/19/2026	Cut Tape $0.30 $0.21 $0.163 $0.146 View Reel $0.072 $0.124 $0.11 $0.096 $0.072 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads FB SMD 0603inch 100o hm NONAUTO Alternate Sizing Guide Below BLM18SP101SN1D Murata Electronics 1: $0.39 26,009In 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	26,009In Stock	Cut Tape $0.39 $0.278 $0.215 $0.191 View Reel $0.10 $0.163 $0.143 $0.125 $0.10 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 1000 OHM Alternate Sizing Guide Below BLM18SP102SN1D Murata Electronics 1: $0.25 28,404In Stock 20,000Expected 2/1/2027	Mfr. Part # BLM18SP102SN1D Mouser Part # 81-BLM18SP102SN1D	Murata Electronics	Ferrite Beads 1000 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	28,404In Stock 20,000Expected 2/1/2027	Cut Tape $0.25 $0.176 $0.137 $0.123 $0.105 Reel $0.098 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 600 OHM Alternate Sizing Guide Below BLM18SP601SN1D Murata Electronics 1: $0.39 15,961In Stock 72,000On Order	Mfr. Part # BLM18SP601SN1D Mouser Part # 81-BLM18SP601SN1D	Murata Electronics	Ferrite Beads 600 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	15,961In Stock 72,000On Order On Order Ship Dates Mfr. #: BLM18SP601SN1D Stock: 15,961 Can Ship Immediately On Order: 28,000 Expected 11/5/2026 44,000 Expected 12/17/2026 Factory Lead-Time: 22 Weeks	Cut Tape $0.39 $0.278 $0.215 $0.191 View Reel $0.099 $0.163 $0.143 $0.125 $0.099 MouseReel Available	Min.: 1 Mult.: 1 : 4,000

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