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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 (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Ferrite Beads 330 OHM Alternate Sizing Guide Below BLM21SP331SN1D Murata Electronics 1: $0.666 13,154In 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	13,154In Stock 56,000On Order On Order Ship Dates Mfr. No: BLM21SP331SN1D Stock: 13,154 Can Dispatch Immediately On Order: 16,000 Expected 15/2/2027 40,000 Expected 22/3/2027 Factory Lead Time: 20 Weeks	Cut Tape $0.666 $0.462 $0.403 $0.359 View Reel $0.186 $0.317 $0.269 $0.208 $0.192 $0.186 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 470 OHM Alternate Sizing Guide Below BLM21SP471SN1D Murata Electronics 1: $0.666 30,515In Stock 28,000Expected 22/3/2027	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	30,515In Stock 28,000Expected 22/3/2027	Cut Tape $0.666 $0.462 $0.403 $0.359 View Reel $0.175 $0.317 $0.269 $0.237 $0.215 $0.175 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 600 OHM Alternate Sizing Guide Below BLM31KN601SN1L Murata Electronics 1: $0.816 21,147In 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	21,147In Stock 87,500On Order	Cut Tape $0.816 $0.577 $0.498 $0.443 View Reel $0.222 $0.394 $0.333 $0.291 $0.273 $0.222 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Common Mode Chokes / Filters 800 NH PLT10HH450180PNL Murata Electronics 1: $13.89 6In 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	6In Stock 1,250On Order On Order Ship Dates Mfr. No: PLT10HH450180PNL Stock: 6 Can Dispatch Immediately On Order: 500 Expected 7/1/2027 750 Expected 14/1/2027 Factory Lead Time: 12 Weeks	Cut Tape $13.89 $11.42 $10.57 $10.00 Reel $9.14 View $8.32 $8.16 MouseReel Available	Min.: 1 Mult.: 1 : 125
EMI Filter Circuits 10.0 UF 25V 20A BNX025H01L Murata Electronics 1: $8.74 3,565In Stock 44,000On Order End of Life	Mfr. Part No. BNX025H01L Mouser Part No 81-BNX025H01L End of Life	Murata Electronics	EMI Filter Circuits 10.0 UF 25V 20A Learn More about Murata Electronics murata bnx series	Datasheet	3,565In Stock 44,000On Order On Order Ship Dates Mfr. No: BNX025H01L Stock: 3,565 Can Dispatch Immediately On Order: 10,000 Expected 12/11/2026 22,000 Expected 29/3/2027 12,000 Expected 10/4/2028 Factory Lead Time: 22 Weeks	Cut Tape $8.74 $7.14 $6.58 $6.19 Reel $4.71 View $5.82 $5.00 $4.37 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 6.3 V 15A BNX029-01L Murata Electronics 1: $8.26 1,582In Stock 4,400Expected 10/4/2028 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	1,582In Stock 4,400Expected 10/4/2028	Cut Tape $8.26 $6.73 $6.22 $5.85 Reel $4.43 View $5.49 $4.73 $4.11 MouseReel Available	Min.: 1 Mult.: 1 : 400
Ferrite Beads 120 OHM Alternate Sizing Guide Below BLM15KD121SN1D Murata Electronics 1: $0.19 14,945In Stock 20,000Expected 8/12/2026	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	14,945In Stock 20,000Expected 8/12/2026	Cut Tape $0.19 $0.133 $0.103 $0.094 View Reel $0.041 $0.08 $0.071 $0.063 $0.049 $0.041 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below BLM18KG601SN1D Murata Electronics 1: $0.19 83,587In Stock 1,120,000Expected 25/1/2027	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	83,587In Stock 1,120,000Expected 25/1/2027	Cut Tape $0.19 $0.137 $0.107 $0.09 Reel $0.046 View $0.078 $0.069 $0.063 $0.042 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads FB SMD 0603inch 220o hm NONAUTO Alternate Sizing Guide Below BLM18SP221SN1D Murata Electronics 1: $0.53 5,993In Stock 8,000Expected 4/12/2026	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	5,993In Stock 8,000Expected 4/12/2026	Cut Tape $0.53 $0.378 $0.292 $0.26 View Reel $0.136 $0.222 $0.194 $0.17 $0.136 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 70 OHM Alternate Sizing Guide Below BLM21SP700SN1D Murata Electronics 1: $0.68 6,203In Stock 28,000On 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	6,203In Stock 28,000On Order On Order Ship Dates Mfr. No: BLM21SP700SN1D Stock: 6,203 Can Dispatch Immediately On Order: 8,000 Expected 11/12/2026 20,000 Expected 24/12/2026 Factory Lead Time: 20 Weeks	Cut Tape $0.68 $0.462 $0.403 $0.359 View Reel $0.186 $0.317 $0.269 $0.237 $0.215 $0.186 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
EMI Filter Circuits 35 DB 50V 20A SMD BNX022-01L Murata Electronics 1: $7.03 53In Stock 46,800On Order End of Life	Mfr. Part No. BNX022-01L Mouser Part No 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	53In Stock 46,800On Order On Order Ship Dates Mfr. No: BNX022-01L Stock: 53 Can Dispatch Immediately On Order: 28,400 Expected 10/4/2028 18,400 Expected 18/4/2028 Factory Lead Time: 22 Weeks	Cut Tape $7.03 $5.74 $4.98 $4.69 Reel $3.78 View $4.03 $3.48 $3.21 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 10.0 UF 50V 20A BNX026H01L Murata Electronics 1: $9.30 37In Stock 34,800On Order End of Life	Mfr. Part No. BNX026H01L Mouser Part No 81-BNX026H01L End of Life	Murata Electronics	EMI Filter Circuits 10.0 UF 50V 20A Learn More about Murata Electronics murata bnx series	Datasheet	37In Stock 34,800On Order On Order Ship Dates Mfr. No: BNX026H01L Stock: 37 Can Dispatch Immediately On Order: 21,600 Expected 10/4/2028 13,200 Expected 18/4/2028 Factory Lead Time: 22 Weeks	Cut Tape $9.30 $7.59 $7.00 $6.60 Reel $5.00 View $6.20 $5.33 $4.72 MouseReel Available	Min.: 1 Mult.: 1 : 400
EMI Filter Circuits 16 V 15A BNX028-01L Murata Electronics 1: $8.77 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: 6,400 Expected 10/4/2028 8,000 Expected 17/4/2028 3,200 Expected 18/4/2028 Factory Lead Time: 22 Weeks	Cut Tape $8.77 $7.49 $6.50 $5.85 Reel $4.43 View $5.49 $4.73 $4.11 MouseReel Available	Min.: 1 Mult.: 1 : 400
Ferrite Beads Chip Ferrite 0805, 4mOhms Res, 30Ohms Imp, 8.5A BLM21SN300SN1D Murata Electronics 1: $0.435 539,774On 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	539,774On Order On Order Ship Dates Mfr. No: BLM21SN300SN1D Stock: 0 On Order: 179,774 Expected 14/12/2026 140,000 Expected 23/2/2027 220,000 Expected 15/3/2027 Factory Lead Time: 20 Weeks	Cut Tape $0.435 $0.305 $0.237 $0.211 View Reel $0.105 $0.18 $0.158 $0.125 $0.105 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below BLM31KN102SN1L Murata Electronics 1: $0.816 187,173On 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	187,173On Order On Order Ship Dates Mfr. No: BLM31KN102SN1L Stock: 0 On Order: 99,673 Expected 7/12/2026 87,500 TBD Factory Lead Time: 16 Weeks	Cut Tape $0.816 $0.566 $0.498 $0.443 View Reel $0.222 $0.394 $0.333 $0.291 $0.273 $0.222 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Ferrite Beads 120 OHM Alternate Sizing Guide Below BLM31KN121SN1L Murata Electronics 1: $0.762 139,910On 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	139,910On Order On Order Ship Dates Mfr. No: BLM31KN121SN1L Stock: 0 On Order: 27,410 Expected 2/2/2027 112,500 TBD Factory Lead Time: 16 Weeks	Cut Tape $0.762 $0.522 $0.458 $0.409 View Reel $0.222 $0.363 $0.309 $0.269 $0.253 $0.222 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Ferrite Beads 270 OHM 4.5A Alternate Sizing Guide Below BLM31KN271SN1L Murata Electronics 1: $0.816 296,856On 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	296,856On Order On Order Ship Dates Mfr. No: BLM31KN271SN1L Stock: 0 On Order: 64,356 Expected 11/1/2027 232,500 TBD Factory Lead Time: 16 Weeks	Cut Tape $0.816 $0.577 $0.498 $0.443 View Reel $0.222 $0.394 $0.333 $0.291 $0.273 $0.222 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Ferrite Beads 470 OHM Alternate Sizing Guide Below BLM31KN471SN1L Murata Electronics 1: $0.816 299,292On 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 11/1/2027 225,000 TBD Factory Lead Time: 16 Weeks	Cut Tape $0.816 $0.577 $0.498 $0.443 View Reel $0.222 $0.394 $0.333 $0.291 $0.273 $0.222 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below BLM31KN801SN1L Murata Electronics 1: $0.816 80,155On 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	80,155On Order On Order Ship Dates Mfr. No: BLM31KN801SN1L Stock: 0 On Order: 2,655 Expected 23/11/2026 77,500 TBD Factory Lead Time: 16 Weeks	Cut Tape $0.816 $0.577 $0.498 $0.443 View Reel $0.222 $0.394 $0.333 $0.261 $0.238 $0.222 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Ferrite Beads 20 OHM Alternate Sizing Guide Below BLM15KD200SN1D Murata Electronics 1: $0.19 389,068On 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	389,068On Order On Order Ship Dates Mfr. No: BLM15KD200SN1D Stock: 0 On Order: 89,068 Expected 11/12/2026 120,000 Expected 27/1/2027 180,000 Expected 1/2/2027 Factory Lead Time: 16 Weeks	Cut Tape $0.19 $0.133 $0.103 $0.094 View Reel $0.041 $0.08 $0.071 $0.05 $0.041 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Ferrite Beads BLM02KX100SN1D Murata Electronics 15,000: $0.095 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 $0.095	Min.: 15,000 Mult.: 15,000 : 15,000

Power Supply Line Noise Suppression for Home Audio

Types of Passive Components

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Power Supply Line Noise Suppression for Home Audio

Types of Passive Components