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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 (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
Ferrite Beads 600 OHM Alternate Sizing Guide Below BLM21SP601SN1D Murata Electronics 1: £0.368 400,563In 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	400,563In Stock	Cut Tape £0.368 £0.255 £0.223 £0.198 View Reel £0.101 £0.175 £0.148 £0.131 £0.119 £0.101 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads BLM02KX180SN1D Murata Electronics 1: £0.217 42,950In Stock	Mfr. Part No. BLM02KX180SN1D Mouser Part No 81-BLM02KX180SN1D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata blm emi filter	Datasheet	42,950In Stock	Cut Tape £0.217 £0.153 £0.119 £0.106 View Reel £0.054 £0.09 £0.079 £0.07 £0.064 £0.054 £0.054 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
Ferrite Beads 30 OHM Alternate Sizing Guide Below BLM18SP300SN1D Murata Electronics 1: £0.292 85,629In 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	85,629In Stock	Cut Tape £0.292 £0.171 £0.135 £0.12 View Reel £0.079 £0.104 £0.092 £0.081 £0.079 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below BLM18KG221SN1D Murata Electronics 1: £0.105 545,361In Stock	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	545,361In Stock	Cut Tape £0.105 £0.076 £0.059 £0.053 Reel £0.025 View £0.045 £0.04 £0.036 £0.024 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 1000 OHM Alternate Sizing Guide Below BLM21SP102SN1D Murata Electronics 1: £0.368 141,374In 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	141,374In Stock	Cut Tape £0.368 £0.255 £0.223 £0.198 View Reel £0.101 £0.175 £0.148 £0.124 £0.111 £0.101 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 180 OHM 25% BLM21SP181SN1D Murata Electronics 1: £0.375 59,800In Stock	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	59,800In Stock	Cut Tape £0.375 £0.255 £0.223 £0.198 View Reel £0.11 £0.175 £0.148 £0.131 £0.119 £0.11 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below BLM31SN500SN1L Murata Electronics 1: £0.473 174,966In Stock 135,000Expected 25/02/2027	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	174,966In Stock 135,000Expected 25/02/2027	Cut Tape £0.473 £0.33 £0.285 £0.255 View Reel £0.136 £0.225 £0.185 £0.158 £0.148 £0.136 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
EMI Filter Circuits 500M Ohm 100Volts 20A BNX02301L Murata Electronics 1: £3.93 7,635In Stock 13,600On Order End of Life	Mfr. Part No. BNX02301L Mouser Part No 81-BNX023-01L End of Life	Murata Electronics	EMI Filter Circuits 500M Ohm 100Volts 20A Learn More about Murata Electronics murata bnx series	Datasheet	7,635In Stock 13,600On Order On Order Ship Dates Mfr. No: BNX02301L Stock: 7,635 Can Dispatch Immediately On Order: 400 Pending 13,200 Expected 18/04/2028 Factory Lead Time: 12 Weeks	Cut Tape £3.93 £3.20 £2.96 £2.78 Reel £2.12 View £2.62 £2.25 £2.00 MouseReel Available	Min.: 1 Mult.: 1 : 400
Common Mode Chokes / Filters 100 OHM 300V 15A 2UH PLT10HH101150PNL Murata Electronics 1: £7.89 1,653In Stock 4,250On Order	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	1,653In Stock 4,250On Order On Order Ship Dates Mfr. No: PLT10HH101150PNL Stock: 1,653 Can Dispatch Immediately On Order: 2,250 Expected 19/11/2026 2,000 Expected 08/01/2027 Factory Lead Time: 12 Weeks	Cut Tape £7.89 £6.49 £6.01 £5.74 Reel £5.34 View £4.87 £4.78 £4.69 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 10M OHM 100V 6A 20UH PLT10HH1026R0PNL Murata Electronics 1: £3.40 4,270In Stock 7,500On 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	4,270In Stock 7,500On Order On Order Ship Dates Mfr. No: PLT10HH1026R0PNL Stock: 4,270 Can Dispatch Immediately On Order: 4,375 Expected 07/01/2027 3,125 Expected 04/03/2027 Factory Lead Time: 12 Weeks	Cut Tape £3.40 £2.79 £2.58 £2.44 Reel £2.23 View £2.03 £1.89 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 6 UH PLT10HH401100PNL Murata Electronics 1: £3.60 1,604In Stock 1,000Expected 29/12/2026	Mfr. Part No. PLT10HH401100PNL Mouser Part No 81-PLT10HH401100PNL	Murata Electronics	Common Mode Chokes / Filters 6 UH Learn More about Murata Electronics murataplt10hh	Datasheet	1,604In Stock 1,000Expected 29/12/2026	Cut Tape £3.60 £2.96 £2.74 £2.58 Reel £2.37 View £2.14 £2.01 £1.95 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 9 UH PLT10HH501100PNL Murata Electronics 1: £3.40 3,107In 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	3,107In Stock	Cut Tape £3.40 £2.79 £2.58 £2.44 Reel £2.23 View £2.03 £1.96 MouseReel Available	Min.: 1 Mult.: 1 : 125
Common Mode Chokes / Filters 14 UH 100V 6A PLT10HH9016R0PNL Murata Electronics 1: £3.40 1,059In Stock 875Expected 14/01/2027	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	1,059In Stock 875Expected 14/01/2027	Cut Tape £3.40 £2.79 £2.58 £2.44 Reel £2.31 View £2.15 £2.01 £1.95 MouseReel Available	Min.: 1 Mult.: 1 : 125
EMI Filter Circuits 4.7 UF 50V 20A BNX024H01L Murata Electronics 1: £4.56 8,827In Stock 10,400Expected 20/04/2028 End of Life	Mfr. Part No. BNX024H01L Mouser Part No 81-BNX024H01L End of Life	Murata Electronics	EMI Filter Circuits 4.7 UF 50V 20A Learn More about Murata Electronics murata bnx series	Datasheet	8,827In Stock 10,400Expected 20/04/2028	Cut Tape £4.56 £4.06 £3.61 £3.43 Reel £2.44 View £3.23 £2.77 £2.36 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 22.0 UF 16V 20A BNX027H01L Murata Electronics 1: £5.13 4,450In Stock End of Life	Mfr. Part No. BNX027H01L Mouser Part No 81-BNX027H01L End of Life	Murata Electronics	EMI Filter Circuits 22.0 UF 16V 20A Learn More about Murata Electronics murata bnx series	Datasheet	4,450In Stock	Cut Tape £5.13 £4.19 £3.87 £3.64 Reel £2.76 View £3.42 £2.94 £2.70 MouseReel Available	Min.: 1 Mult.: 1 : 400
Ferrite Beads 30 OHM Alternate Sizing Guide Below BLM15KD300SN1D Murata Electronics 1: £0.105 44,264In Stock	Mfr. Part No. BLM15KD300SN1D Mouser Part No 81-BLM15KD300SN1D	Murata Electronics	Ferrite Beads 30 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	44,264In Stock	Cut Tape £0.105 £0.073 £0.057 £0.052 View Reel £0.023 £0.045 £0.039 £0.035 £0.028 £0.023 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Ferrite Beads 1000 OHM Alternate Sizing Guide Below BLM18KG102SN1D Murata Electronics 1: £0.075 87,016In Stock 280,000On Order	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	87,016In Stock 280,000On Order On Order Ship Dates Mfr. No: BLM18KG102SN1D Stock: 87,016 Can Dispatch Immediately On Order: 140,000 Expected 11/12/2026 140,000 Expected 15/12/2026 Factory Lead Time: 22 Weeks	Cut Tape £0.075 £0.048 £0.038 £0.034 View Reel £0.024 £0.03 £0.026 £0.024 £0.024 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below BLM18KG331SN1D Murata Electronics 1: £0.127 206,880In Stock	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	206,880In Stock	Cut Tape £0.127 £0.083 £0.072 £0.058 Reel £0.03 View £0.051 £0.045 £0.04 £0.025 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below BLM18KG471SN1D Murata Electronics 1: £0.075 204,877In Stock 112,000Expected 29/03/2027	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	204,877In Stock 112,000Expected 29/03/2027	Cut Tape £0.075 £0.048 £0.038 £0.034 View Reel £0.024 £0.03 £0.026 £0.024 £0.024 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below BLM18KG601SN1D Murata Electronics 1: £0.105 83,577In Stock 1,120,000Expected 17/11/2026	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	83,577In Stock 1,120,000Expected 17/11/2026	Cut Tape £0.105 £0.076 £0.059 £0.05 Reel £0.025 View £0.043 £0.038 £0.035 £0.024 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 22 OHM Alternate Sizing Guide Below BLM18SD220SN1D Murata Electronics 1: £0.127 83,243In Stock 68,000Expected 14/12/2026	Mfr. Part No. BLM18SD220SN1D Mouser Part No 81-BLM18SD220SN1D	Murata Electronics	Ferrite Beads 22 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	83,243In Stock 68,000Expected 14/12/2026	Cut Tape £0.127 £0.093 £0.072 £0.065 View Reel £0.052 £0.056 £0.052 £0.052 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 33 OHM Alternate Sizing Guide Below BLM18SG330SN1D Murata Electronics 1: £0.225 58,027In Stock	Mfr. Part No. BLM18SG330SN1D Mouser Part No 81-BLM18SG330SN1D	Murata Electronics	Ferrite Beads 33 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	58,027In Stock	Cut Tape £0.225 £0.158 £0.122 £0.11 View Reel £0.057 £0.093 £0.083 £0.072 £0.057 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads FB SMD 0603inch 100o hm NONAUTO Alternate Sizing Guide Below BLM18SP101SN1D Murata Electronics 1: £0.292 25,249In 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	25,249In Stock	Cut Tape £0.292 £0.209 £0.162 £0.143 View Reel £0.079 £0.122 £0.107 £0.094 £0.079 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 1000 OHM Alternate Sizing Guide Below BLM18SP102SN1D Murata Electronics 1: £0.196 23,040In Stock 20,000Expected 22/02/2027	Mfr. Part No. BLM18SP102SN1D Mouser Part No 81-BLM18SP102SN1D	Murata Electronics	Ferrite Beads 1000 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	23,040In Stock 20,000Expected 22/02/2027	Cut Tape £0.196 £0.137 £0.107 £0.095 £0.082 Reel £0.079 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 600 OHM Alternate Sizing Guide Below BLM18SP601SN1D Murata Electronics 1: £0.292 43,671In Stock 44,000Expected 17/12/2026	Mfr. Part No. BLM18SP601SN1D Mouser Part No 81-BLM18SP601SN1D	Murata Electronics	Ferrite Beads 600 OHM Alternate Sizing Guide Below Learn More about Murata Electronics murata blm emi filter	Datasheet	43,671In Stock 44,000Expected 17/12/2026	Cut Tape £0.292 £0.209 £0.162 £0.143 View Reel £0.079 £0.122 £0.107 £0.094 £0.079 MouseReel Available	Min.: 1 Mult.: 1 : 4,000

Power Supply Line Noise Suppression for Home Audio

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Power Supply Line Noise Suppression for Home Audio

Types of Passive Components