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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 (CHF) 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: CHF 0.371 21’242In Stock	Mfr. Part No. NFZ2MSD101SZ10L Mouser Part No 81-NFZ2MSD101SZ10L	Murata Electronics	Ferrite Beads 100 OHM 5.2A Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	21’242In Stock	Cut Tape CHF 0.371 CHF 0.303 CHF 0.30 CHF 0.25 View Reel CHF 0.161 CHF 0.224 CHF 0.195 CHF 0.187 CHF 0.161 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: CHF 0.378 11’095In Stock	Mfr. Part No. NFZ32SW901HN10L Mouser Part No 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 CHF 0.378 CHF 0.269 CHF 0.208 CHF 0.184 View Reel CHF 0.104 CHF 0.157 CHF 0.138 CHF 0.104 CHF 0.104 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: CHF 0.362 1’249In Stock	Mfr. Part No. NFZ18SM251SZ10D Mouser Part No 81-NFZ18SM251SZ10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	1’249In Stock	Cut Tape CHF 0.362 CHF 0.253 CHF 0.219 CHF 0.175 Reel CHF 0.09 View CHF 0.149 CHF 0.131 CHF 0.115 CHF 0.089 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 NFZ18SM501SZ10D Murata Electronics 1: CHF 0.362 8’065In Stock	Mfr. Part No. NFZ18SM501SZ10D Mouser Part No 81-NFZ18SM501SZ10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	8’065In Stock	Cut Tape CHF 0.362 CHF 0.253 CHF 0.219 CHF 0.175 View Reel CHF 0.089 CHF 0.149 CHF 0.131 CHF 0.115 CHF 0.089 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 NFZ15SG262SN10D Murata Electronics 1: CHF 0.169 10’646In Stock	Mfr. Part No. NFZ15SG262SN10D Mouser Part No 81-NFZ15SG262SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	10’646In Stock	Cut Tape CHF 0.169 CHF 0.118 CHF 0.092 CHF 0.082 View Reel CHF 0.06 CHF 0.07 CHF 0.062 CHF 0.06 CHF 0.06 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 100 OHM 4.0A NFZ2MSM101SN10L Murata Electronics 1: CHF 0.636 18’917In Stock NRND	Mfr. Part No. NFZ2MSM101SN10L Mouser Part No 81-NFZ2MSM101SN10L NRND	Murata Electronics	Ferrite Beads 100 OHM 4.0A	Datasheet	18’917In Stock	Cut Tape CHF 0.636 CHF 0.445 CHF 0.383 CHF 0.341 View Reel CHF 0.187 CHF 0.302 CHF 0.255 CHF 0.222 CHF 0.221 CHF 0.187 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 300 OHM NFZ2MSM301SN10L Murata Electronics 1: CHF 0.644 46’675In Stock NRND	Mfr. Part No. NFZ2MSM301SN10L Mouser Part No 81-NFZ2MSM301SN10L NRND	Murata Electronics	Ferrite Beads 300 OHM	Datasheet	46’675In Stock	Cut Tape CHF 0.644 CHF 0.633 CHF 0.596 CHF 0.531 View Reel CHF 0.227 CHF 0.469 CHF 0.396 CHF 0.345 CHF 0.33 CHF 0.227 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: CHF 0.338 7’996In Stock	Mfr. Part No. NFZ2MSD131SN10L Mouser Part No 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 CHF 0.338 CHF 0.278 CHF 0.228 CHF 0.22 View Reel CHF 0.156 CHF 0.204 CHF 0.178 CHF 0.156 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 NFZ03SG162SN10D Murata Electronics 1: CHF 0.177 15’149In Stock	Mfr. Part No. NFZ03SG162SN10D Mouser Part No 81-NFZ03SG162SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	15’149In Stock	Cut Tape CHF 0.177 CHF 0.124 CHF 0.096 CHF 0.086 View Reel CHF 0.041 CHF 0.074 CHF 0.066 CHF 0.057 CHF 0.05 CHF 0.041 CHF 0.041 MouseReel Available	Min.: 1 Mult.: 1 : 15’000	NFZ	Ferrite Chip Beads	SMD/SMT	0201 (0603 metric)	1.6 kOhms	180 mA	25 %	1.7 Ohms	- 55 C	+ 125 C	0.6 mm	0.3 mm	0.3 mm		Reel, Cut Tape, MouseReel
Ferrite Beads NFZ03SG331SN10D Murata Electronics 1: CHF 0.169 11’464In Stock 15’000Expected 12/8/2026	Mfr. Part No. NFZ03SG331SN10D Mouser Part No 81-NFZ03SG331SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	11’464In Stock 15’000Expected 12/8/2026	Cut Tape CHF 0.169 CHF 0.116 CHF 0.096 CHF 0.081 View Reel CHF 0.042 CHF 0.071 CHF 0.064 CHF 0.056 CHF 0.05 CHF 0.042 CHF 0.042 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 NFZ03SG671SN10D Murata Electronics 1: CHF 0.185 9’900In Stock	Mfr. Part No. NFZ03SG671SN10D Mouser Part No 81-NFZ03SG671SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	9’900In Stock	Cut Tape CHF 0.185 CHF 0.13 CHF 0.112 CHF 0.072 View Reel CHF 0.042 CHF 0.062 CHF 0.061 CHF 0.059 CHF 0.042 CHF 0.042 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 NFZ15SG101SN11D Murata Electronics 1: CHF 0.241 9’940In Stock	Mfr. Part No. NFZ15SG101SN11D Mouser Part No 81-NFZ15SG101SN11D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	9’940In Stock	Cut Tape CHF 0.241 CHF 0.169 CHF 0.131 CHF 0.117 View Reel CHF 0.06 CHF 0.10 CHF 0.088 CHF 0.078 CHF 0.075 CHF 0.06 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: CHF 0.241 5’698In Stock	Mfr. Part No. NFZ15SG151SN11D Mouser Part No 81-NFZ15SG151SN11D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	5’698In Stock	Cut Tape CHF 0.241 CHF 0.169 CHF 0.131 CHF 0.117 View Reel CHF 0.06 CHF 0.10 CHF 0.088 CHF 0.078 CHF 0.071 CHF 0.06	Min.: 1 Mult.: 1 : 10’000	NFZ	EMI Filters													Reel, Cut Tape
Ferrite Beads NFZ15SG152SN10D Murata Electronics 1: CHF 0.25 9’290In Stock	Mfr. Part No. NFZ15SG152SN10D Mouser Part No 81-NFZ15SG152SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	9’290In Stock	Cut Tape CHF 0.25 CHF 0.173 CHF 0.15 CHF 0.121 View Reel CHF 0.06 CHF 0.103 CHF 0.091 CHF 0.08 CHF 0.075 CHF 0.06	Min.: 1 Mult.: 1 : 10’000	NFZ	EMI Filters	SMD/SMT		1.5 kOhms	400 mA	25 %	800 mOhms	- 55 C	+ 125 C	1 mm	0.5 mm	0.5 mm		Reel, Cut Tape
Ferrite Beads 330 OHM 650MA NFZ15SG331SN11D Murata Electronics 1: CHF 0.169 9’334In Stock	Mfr. Part No. NFZ15SG331SN11D Mouser Part No 81-NFZ15SG331SN11D	Murata Electronics	Ferrite Beads 330 OHM 650MA Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	9’334In Stock	Cut Tape CHF 0.169 CHF 0.118 CHF 0.092 CHF 0.082 View Reel CHF 0.06 CHF 0.07 CHF 0.062 CHF 0.061 CHF 0.06 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: CHF 0.169 11’342In Stock	Mfr. Part No. NFZ15SG462SN10D Mouser Part No 81-NFZ15SG462SN10D	Murata Electronics	Ferrite Beads 4600 OHM 900MHZ 0.27A Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	11’342In Stock	Cut Tape CHF 0.169 CHF 0.118 CHF 0.092 CHF 0.082 View Reel CHF 0.06 CHF 0.07 CHF 0.062 CHF 0.061 CHF 0.06 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: CHF 0.241 3’780In Stock 10’000Expected 12/4/2026	Mfr. Part No. NFZ15SG771SN10D Mouser Part No 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 CHF 0.241 CHF 0.169 CHF 0.131 CHF 0.117 View Reel CHF 0.06 CHF 0.10 CHF 0.088 CHF 0.078 CHF 0.071 CHF 0.06	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: CHF 0.33 32In Stock 4’000Expected 3/4/2027	Mfr. Part No. NFZ18SM251SN10D Mouser Part No 81-NFZ18SM251SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	32In Stock 4’000Expected 3/4/2027	Cut Tape CHF 0.33 CHF 0.228 CHF 0.198 CHF 0.158 Reel CHF 0.094 View CHF 0.135 CHF 0.119 CHF 0.104 CHF 0.08 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: CHF 0.33 514In Stock	Mfr. Part No. NFZ18SM501SN10D Mouser Part No 81-NFZ18SM501SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	514In Stock	Cut Tape CHF 0.33 CHF 0.228 CHF 0.198 CHF 0.158 Reel CHF 0.081 View CHF 0.135 CHF 0.119 CHF 0.104 CHF 0.08 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 NFZ18SM701SN10D Murata Electronics 1: CHF 0.306 2’970In Stock	Mfr. Part No. NFZ18SM701SN10D Mouser Part No 81-NFZ18SM701SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	2’970In Stock	Cut Tape CHF 0.306 CHF 0.215 CHF 0.167 CHF 0.148 View Reel CHF 0.08 CHF 0.126 CHF 0.111 CHF 0.096 CHF 0.08 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 NFZ18SM701SZ10D Murata Electronics 1: CHF 0.362 25In Stock 4’000Expected 12/14/2026	Mfr. Part No. NFZ18SM701SZ10D Mouser Part No 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 CHF 0.362 CHF 0.253 CHF 0.219 CHF 0.162 View Reel CHF 0.089 CHF 0.138 CHF 0.121 CHF 0.106 CHF 0.089 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 NFZ2MSM601SN10L Murata Electronics 1: CHF 0.636 1’653In Stock 3’000Expected 1/26/2027 NRND	Mfr. Part No. NFZ2MSM601SN10L Mouser Part No 81-NFZ2MSM601SN10L NRND	Murata Electronics	Ferrite Beads	Datasheet	1’653In Stock 3’000Expected 1/26/2027	Cut Tape CHF 0.636 CHF 0.633 CHF 0.596 CHF 0.531 View Reel CHF 0.19 CHF 0.469 CHF 0.396 CHF 0.345 CHF 0.33 CHF 0.19 MouseReel Available	Min.: 1 Mult.: 1 : 3’000	NFZ	EMI Filters	SMD/SMT	0806 (2016 metric)	600 Ohms	2.5 A	25 %	46 mOhms	- 40 C	+ 85 C	2 mm	1.6 mm	0.9 mm		Reel, Cut Tape, MouseReel
Ferrite Beads 1K OHM 2.5A NFZ2MSD102SZ10L Murata Electronics 1: CHF 0.548 989In Stock 9’000On Order	Mfr. Part No. NFZ2MSD102SZ10L Mouser Part No 81-NFZ2MSD102SZ10L	Murata Electronics	Ferrite Beads 1K OHM 2.5A Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	989In Stock 9’000On Order On Order Ship Dates Mfr. No: NFZ2MSD102SZ10L Stock: 989 Can Dispatch Immediately On Order: 3’000 Expected 1/18/2027 6’000 Expected 1/21/2027 Factory Lead Time: 14 Weeks	Cut Tape CHF 0.548 CHF 0.383 CHF 0.332 CHF 0.296 View Reel CHF 0.158 CHF 0.262 CHF 0.222 CHF 0.193 CHF 0.186 CHF 0.158 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: CHF 0.338 2’727In Stock	Mfr. Part No. NFZ2MSD150SN10L Mouser Part No 81-NFZ2MSD150SN10L	Murata Electronics	Ferrite Beads EMI Filter SMD NONAUTO Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	2’727In Stock	Cut Tape CHF 0.338 CHF 0.278 CHF 0.228 CHF 0.22 View Reel CHF 0.168 CHF 0.204 CHF 0.178 CHF 0.168 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: CHF 0.371 2’750In Stock	Mfr. Part No. NFZ2MSD181SZ10L Mouser Part No 81-NFZ2MSD181SZ10L	Murata Electronics	Ferrite Beads EMI Filter SMD 180ohm INFOTMT Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	2’750In Stock	Cut Tape CHF 0.371 CHF 0.303 CHF 0.30 CHF 0.25 View Reel CHF 0.168 CHF 0.235 CHF 0.22 CHF 0.195 CHF 0.168 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