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Audio Line Noise Suppression for Home Audio

Digital amplifiers are becoming more popular for home audio applications and have improved in terms of audio quality. But because of the switching noise that occurs in digital amplifiers, noise that exceeds EMC standards can be emitted into the space around the cable connected to the speaker. Noise suppression via capacitors and inductors is typically implemented to solve this noise problem. But Murata has developed noise filters for audio lines that suppress unwanted noise while maintaining audio quality. Here is an overview of noise problems in home audio 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.	Series	Product	Termination Style	Package / Case	Impedance	Maximum DC Current	Tolerance	Maximum DC Resistance	Minimum Operating Temperature	Maximum Operating Temperature	Length	Width	Height	Qualification	Packaging
Ferrite Beads 100 OHM 5.2A NFZ2MSD101SZ10L Murata Electronics 1: $0.598 23,742In Stock	Mfr. Part # NFZ2MSD101SZ10L Mouser Part # 81-NFZ2MSD101SZ10L	Murata Electronics	Ferrite Beads 100 OHM 5.2A Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	23,742In Stock	Cut Tape $0.598 $0.49 $0.468 $0.403 View Reel $0.261 $0.352 $0.309 $0.269 $0.261 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	100 Ohms	5.2 A	25 %	18 mOhms	- 55 C	+ 125 C	2 mm	1.6 mm	1.2 mm	AEC-Q200	Reel, Cut Tape, MouseReel
Ferrite Beads 900 OHM 2.55A NFZ32SW901HN10L Murata Electronics 1: $0.611 11,095In Stock	Mfr. Part # NFZ32SW901HN10L Mouser Part # 81-NFZ32SW901HN10L	Murata Electronics	Ferrite Beads 900 OHM 2.55A Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	11,095In Stock	Cut Tape $0.611 $0.434 $0.376 $0.335 Reel $0.164 View $0.298 $0.254 $0.225 $0.164 $0.161 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	NFZ	EMI Filters	SMD/SMT	1210 (3225 metric)	900 Ohms	2.05 A	30 %	45 mOhms	- 40 C	+ 125 C	3.2 mm	2.5 mm	1.55 mm		Reel, Cut Tape, MouseReel
Ferrite Beads NFZ18SM251SZ10D Murata Electronics 1: $0.377 1,249In Stock	Mfr. Part # NFZ18SM251SZ10D Mouser Part # 81-NFZ18SM251SZ10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	1,249In Stock	Cut Tape $0.377 $0.259 $0.225 $0.20 View Reel $0.103 $0.179 $0.153 $0.135 $0.118 $0.103 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	NFZ	EMI Filters	SMD/SMT	0603 (1608 metric)	250 Ohms	1.1 A	25 %	190 mOhms	- 55 C	+ 125 C	1.6 mm	0.8 mm	0.8 mm		Reel, Cut Tape, MouseReel
Ferrite Beads NFZ03SG671SN10D Murata Electronics 1: $0.299 9,900In Stock	Mfr. Part # NFZ03SG671SN10D Mouser Part # 81-NFZ03SG671SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	9,900In Stock	Cut Tape $0.299 $0.205 $0.179 $0.16 View Reel $0.085 $0.143 $0.124 $0.109 $0.096 $0.085 $0.085 MouseReel Available	Min.: 1 Mult.: 1 : 15,000	NFZ	Ferrite Chip Beads	SMD/SMT	0201 (0603 metric)	670 Ohms	250 mA	25 %	880 mOhms	- 55 C	+ 125 C	0.6 mm	0.3 mm	0.3 mm		Reel, Cut Tape, MouseReel
Ferrite Beads 300 OHM NFZ2MSM301SN10L Murata Electronics 1: $0.637 51,965In Stock NRND	Mfr. Part # NFZ2MSM301SN10L Mouser Part # 81-NFZ2MSM301SN10L NRND	Murata Electronics	Ferrite Beads 300 OHM	Datasheet	51,965In Stock	Cut Tape $0.637 $0.571 $0.51 $0.452 View Reel $0.181 $0.385 $0.337 $0.224 $0.181 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	300 Ohms	3.1 A	25 %	30 mOhms	- 40 C	+ 85 C	2 mm	1.6 mm	0.9 mm		Reel, Cut Tape, MouseReel
Ferrite Beads EMI Filter SMD NONAUTO NFZ2MSD131SN10L Murata Electronics 1: $0.546 7,996In Stock	Mfr. Part # NFZ2MSD131SN10L Mouser Part # 81-NFZ2MSD131SN10L	Murata Electronics	Ferrite Beads EMI Filter SMD NONAUTO Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	7,996In Stock	Cut Tape $0.546 $0.449 $0.443 $0.369 View Reel $0.252 $0.35 $0.328 $0.277 $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	130 Ohms	1.5 A	25 %	144 mOhms	- 55 C	+ 125 C	2 mm	1.6 mm	1.2 mm		Reel, Cut Tape, MouseReel
Ferrite Beads 100 OHM 4.0A NFZ2MSM101SN10L Murata Electronics 1: $0.65 18,929In Stock NRND	Mfr. Part # NFZ2MSM101SN10L Mouser Part # 81-NFZ2MSM101SN10L NRND	Murata Electronics	Ferrite Beads 100 OHM 4.0A	Datasheet	18,929In Stock	Cut Tape $0.65 $0.449 $0.387 $0.346 View Reel $0.17 $0.307 $0.26 $0.229 $0.202 $0.17 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	100 Ohms	4 A	25 %	18 mOhms	- 40 C	+ 85 C	2 mm	1.6 mm	0.9 mm		Reel, Cut Tape, MouseReel
Ferrite Beads NFZ03SG331SN10D Murata Electronics 1: $0.273 11,764In Stock 15,000Expected 12/8/2026	Mfr. Part # NFZ03SG331SN10D Mouser Part # 81-NFZ03SG331SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	11,764In Stock 15,000Expected 12/8/2026	Cut Tape $0.273 $0.186 $0.161 $0.146 View Reel $0.072 $0.131 $0.113 $0.101 $0.091 $0.072 $0.072 MouseReel Available	Min.: 1 Mult.: 1 : 15,000	NFZ	Ferrite Chip Beads	SMD/SMT	0201 (0603 metric)	330 Ohms	305 mA	25 %	600 mOhms	- 55 C	+ 125 C	0.6 mm	0.3 mm	0.3 mm		Reel, Cut Tape, MouseReel
Ferrite Beads NFZ15SG101SN11D Murata Electronics 1: $0.286 9,940In Stock	Mfr. Part # NFZ15SG101SN11D Mouser Part # 81-NFZ15SG101SN11D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	9,940In Stock	Cut Tape $0.286 $0.196 $0.172 $0.153 View Reel $0.068 $0.137 $0.116 $0.103 $0.091 $0.068 $0.068 MouseReel Available	Min.: 1 Mult.: 1 Max.: 30,000 : 10,000	NFZ	EMI Filters	SMD/SMT		100 Ohms	1.1 A	25 %	100 mOhms	- 55 C	+ 125 C	1 mm	0.5 mm	0.5 mm		Reel, Cut Tape, MouseReel
Ferrite Beads NFZ15SG151SN11D Murata Electronics 1: $0.195 5,698In Stock	Mfr. Part # NFZ15SG151SN11D Mouser Part # 81-NFZ15SG151SN11D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	5,698In Stock	Cut Tape $0.195 $0.155 $0.143 $0.134 View Reel $0.077 $0.124 $0.114 $0.103 $0.091 $0.077 $0.077	Min.: 1 Mult.: 1 : 10,000	NFZ	EMI Filters													Reel, Cut Tape
Ferrite Beads NFZ15SG262SN10D Murata Electronics 1: $0.273 10,646In Stock	Mfr. Part # NFZ15SG262SN10D Mouser Part # 81-NFZ15SG262SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	10,646In Stock	Cut Tape $0.273 $0.19 $0.165 $0.148 View Reel $0.068 $0.133 $0.113 $0.10 $0.088 $0.068 $0.068 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	NFZ	EMI Filters	SMD/SMT		2.6 kOhms	350 mA	25 %	1 Ohms	- 55 C	+ 125 C	1 mm	0.5 mm	0.5 mm		Reel, Cut Tape, MouseReel
Ferrite Beads 330 OHM 650MA NFZ15SG331SN11D Murata Electronics 1: $0.273 12,334In Stock	Mfr. Part # NFZ15SG331SN11D Mouser Part # 81-NFZ15SG331SN11D	Murata Electronics	Ferrite Beads 330 OHM 650MA Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	12,334In Stock	Cut Tape $0.273 $0.19 $0.165 $0.148 View Reel $0.075 $0.133 $0.113 $0.10 $0.088 $0.075 $0.075 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	NFZ	EMI Filters	SMD/SMT		330 Ohms	650 mA	25 %	300 mOhms	- 55 C	+ 125 C	1 mm	0.5 mm	0.5 mm		Reel, Cut Tape, MouseReel
Ferrite Beads 4600 OHM 900MHZ 0.27A NFZ15SG462SN10D Murata Electronics 1: $0.273 12,792In Stock	Mfr. Part # NFZ15SG462SN10D Mouser Part # 81-NFZ15SG462SN10D	Murata Electronics	Ferrite Beads 4600 OHM 900MHZ 0.27A Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	12,792In Stock	Cut Tape $0.273 $0.19 $0.165 $0.148 View Reel $0.068 $0.133 $0.113 $0.10 $0.088 $0.068 $0.068 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	NFZ	EMI Filters	SMD/SMT		4.6 kOhms	270 mA	25 %	1.65 Ohms	- 55 C	+ 125 C	1 mm	0.5 mm	0.5 mm		Reel, Cut Tape, MouseReel
Ferrite Beads NFZ15SG771SN10D Murata Electronics 1: $0.273 3,780In Stock 10,000Expected 12/4/2026	Mfr. Part # NFZ15SG771SN10D Mouser Part # 81-NFZ15SG771SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	3,780In Stock 10,000Expected 12/4/2026	Cut Tape $0.273 $0.19 $0.165 $0.148 View Reel $0.068 $0.133 $0.113 $0.10 $0.088 $0.068 $0.068	Min.: 1 Mult.: 1 : 10,000	NFZ	EMI Filters	SMD/SMT		770 Ohms	500 mA	25 %	500 mOhms	- 55 C	+ 125 C	1 mm	0.5 mm	0.5 mm		Reel, Cut Tape
Ferrite Beads NFZ18SM251SN10D Murata Electronics 1: $0.377 1,182In Stock	Mfr. Part # NFZ18SM251SN10D Mouser Part # 81-NFZ18SM251SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	1,182In Stock	Cut Tape $0.377 $0.256 $0.222 $0.199 View Reel $0.099 $0.178 $0.153 $0.137 $0.12 $0.099 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	NFZ	EMI Filters	SMD/SMT	0603 (1608 metric)	250 Ohms	1.1 A	25 %	190 mOhms	- 55 C	+ 125 C	1.6 mm	0.8 mm	0.8 mm		Reel, Cut Tape, MouseReel
Ferrite Beads NFZ18SM501SN10D Murata Electronics 1: $0.377 914In Stock	Mfr. Part # NFZ18SM501SN10D Mouser Part # 81-NFZ18SM501SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	914In Stock	Cut Tape $0.377 $0.256 $0.222 $0.199 View Reel $0.087 $0.178 $0.153 $0.137 $0.12 $0.087 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	NFZ	EMI Filters	SMD/SMT	0603 (1608 metric)	500 Ohms	950 mA	25 %	250 mOhms	- 55 C	+ 125 C	1.6 mm	0.8 mm	0.8 mm		Reel, Cut Tape, MouseReel
Ferrite Beads NFZ18SM501SZ10D Murata Electronics 1: $0.377 8,065In Stock	Mfr. Part # NFZ18SM501SZ10D Mouser Part # 81-NFZ18SM501SZ10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	8,065In Stock	Cut Tape $0.377 $0.259 $0.225 $0.20 View Reel $0.109 $0.179 $0.153 $0.135 $0.118 $0.109 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	NFZ	EMI Filters	SMD/SMT	0603 (1608 metric)	500 Ohms	950 mA	25 %	250 mOhms	- 55 C	+ 125 C	1.6 mm	0.8 mm	0.8 mm		Reel, Cut Tape, MouseReel
Ferrite Beads NFZ18SM701SZ10D Murata Electronics 1: $0.377 25In Stock 4,000Expected 12/14/2026	Mfr. Part # NFZ18SM701SZ10D Mouser Part # 81-NFZ18SM701SZ10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	25In Stock 4,000Expected 12/14/2026	Cut Tape $0.377 $0.259 $0.225 $0.20 View Reel $0.09 $0.179 $0.153 $0.135 $0.09 $0.09 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	NFZ	EMI Filters	SMD/SMT	0603 (1608 metric)	700 Ohms	800 mA	25 %	290 mOhms	- 55 C	+ 125 C	1.6 mm	0.8 mm	0.8 mm		Reel, Cut Tape, MouseReel
Ferrite Beads 1K OHM 2.5A NFZ2MSD102SZ10L Murata Electronics 1: $0.585 4,599In Stock	Mfr. Part # NFZ2MSD102SZ10L Mouser Part # 81-NFZ2MSD102SZ10L	Murata Electronics	Ferrite Beads 1K OHM 2.5A Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	4,599In Stock	Cut Tape $0.585 $0.481 $0.395 $0.32 Reel $0.278 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	1 kOhms	2.5 A	25 %	46 mOhms	- 55 C	+ 125 C	2 mm	1.6 mm	1.2 mm	AEC-Q200	Reel, Cut Tape, MouseReel
Ferrite Beads EMI Filter SMD NONAUTO NFZ2MSD150SN10L Murata Electronics 1: $0.546 2,731In Stock	Mfr. Part # NFZ2MSD150SN10L Mouser Part # 81-NFZ2MSD150SN10L	Murata Electronics	Ferrite Beads EMI Filter SMD NONAUTO Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	2,731In Stock	Cut Tape $0.546 $0.449 $0.443 $0.369 View Reel $0.243 $0.345 $0.302 $0.261 $0.243 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	15 Ohms	4.4 A	25 %	23 mOhms	- 55 C	+ 125 C	2 mm	1.6 mm	1.2 mm		Reel, Cut Tape, MouseReel
Ferrite Beads EMI Filter SMD 180ohm INFOTMT NFZ2MSD181SZ10L Murata Electronics 1: $0.585 2,850In Stock	Mfr. Part # NFZ2MSD181SZ10L Mouser Part # 81-NFZ2MSD181SZ10L	Murata Electronics	Ferrite Beads EMI Filter SMD 180ohm INFOTMT Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	2,850In Stock	Cut Tape $0.585 $0.481 $0.478 $0.395 View Reel $0.285 $0.39 $0.382 $0.317 $0.285 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	180 Ohms	4 A	25 %	22 mOhms	- 55 C	+ 125 C	2 mm	1.6 mm	1.2 mm	AEC-Q200	Reel, Cut Tape, MouseReel
Ferrite Beads EMI Filter SMD NONAUTO NFZ2MSD300SN10L Murata Electronics 1: $0.546 1,067In Stock	Mfr. Part # NFZ2MSD300SN10L Mouser Part # 81-NFZ2MSD300SN10L	Murata Electronics	Ferrite Beads EMI Filter SMD NONAUTO Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	1,067In Stock	Cut Tape $0.546 $0.449 $0.443 $0.369 View Reel $0.243 $0.345 $0.302 $0.261 $0.243 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	30 Ohms	3.7 A	25 %	33 mOhms	- 55 C	+ 125 C	2 mm	1.6 mm	1.2 mm		Reel, Cut Tape, MouseReel
Ferrite Beads EMI Filter SMD 300ohm INFOTMT NFZ2MSD301SZ10L Murata Electronics 1: $0.91 3,258In Stock 3,000Expected 11/9/2026	Mfr. Part # NFZ2MSD301SZ10L Mouser Part # 81-NFZ2MSD301SZ10L	Murata Electronics	Ferrite Beads EMI Filter SMD 300ohm INFOTMT Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	3,258In Stock 3,000Expected 11/9/2026	Cut Tape $0.91 $0.634 $0.547 $0.488 View Reel $0.244 $0.433 $0.365 $0.319 $0.277 $0.244 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,000 : 3,000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	300 Ohms	3.8 A	25 %	26 mOhms	- 55 C	+ 125 C	2 mm	1.6 mm	1.2 mm	AEC-Q200	Reel, Cut Tape, MouseReel
Ferrite Beads 500 OHM 3.2A NFZ2MSD501SZ10L Murata Electronics 1: $0.598 2,087In Stock 6,000Expected 12/17/2026	Mfr. Part # NFZ2MSD501SZ10L Mouser Part # 81-NFZ2MSD501SZ10L	Murata Electronics	Ferrite Beads 500 OHM 3.2A Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	2,087In Stock 6,000Expected 12/17/2026	Cut Tape $0.598 $0.49 $0.468 $0.403 View Reel $0.303 $0.352 $0.309 $0.303 $0.303 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	500 Ohms	3.2 A	25 %	32 mOhms	- 55 C	+ 125 C	2 mm	1.6 mm	1.2 mm	AEC-Q200	Reel, Cut Tape, MouseReel
Ferrite Beads NFZ2MSM181SN10L Murata Electronics 1: $0.65 2,740In Stock NRND	Mfr. Part # NFZ2MSM181SN10L Mouser Part # 81-NFZ2MSM181SN10L NRND	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	2,740In Stock	Cut Tape $0.65 $0.449 $0.387 $0.346 View Reel $0.17 $0.307 $0.26 $0.229 $0.202 $0.17 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	180 Ohms	3.4 A	25 %	25 mOhms	- 40 C	+ 85 C	2 mm	1.6 mm	0.9 mm		Reel, Cut Tape, MouseReel