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.

Results: 32
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Series Product Termination Style Package / Case Impedance Maximum DC Current Tolerance Maximum DC Resistance Minimum Operating Temperature Maximum Operating Temperature Length Width Height Packaging
Murata Electronics Ferrite Beads 43,000In Stock
Cut Tape
$0.25
$0.176
$0.153
$0.137
Reel
$0.064
Min.: 1
Mult.: 1
: 15,000
BLM02xX_SN Ferrite Beads SMD/SMT 1005 (0402 metric) 18 Ohms 1.2 A 25 % 45 mOhms - 55 C + 125 C 0.4 mm 0.2 mm 0.2 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 30 OHM Alternate Sizing Guide Below 89,478In Stock
Cut Tape
$0.20
$0.137
$0.119
$0.107
Reel
$0.058
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 30 Ohms 6 A 25 % 10 mOhms - 55 C + 125 C 1.6 mm 0.8 mm 0.6 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 600 OHM Alternate Sizing Guide Below 422,774In Stock
Cut Tape
$0.31
$0.218
$0.19
$0.17
Reel
$0.075
Min.: 1
Mult.: 1
: 4,000
BLM21_xN Ferrite Chip Beads SMD/SMT 0805 (2012 metric) 600 Ohms 2.3 A 25 % 60 mOhms - 55 C + 125 C 2 mm 1.25 mm 0.85 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below 695,226In Stock
520,000Expected 10/20/2026
Cut Tape
$0.10
$0.064
$0.05
$0.045
Reel
$0.021
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 600 Ohms 1.3 A 25 % 150 mOhms - 55 C + 125 C 1.6 mm 0.8 mm 0.8 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 1000 OHM Alternate Sizing Guide Below 122,995In Stock
140,000Expected 11/24/2026
Cut Tape
$0.10
$0.064
$0.05
$0.045
Reel
$0.023
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 1 kOhms 1 A 25 % - 55 C + 125 C 1.6 mm 0.8 mm 0.8 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below 457,899In Stock
240,000Expected 12/7/2026
Cut Tape
$0.10
$0.064
$0.05
$0.045
Reel
$0.022
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 220 Ohms 2.2 A 25 % 50 mOhms - 55 C + 125 C 1.6 mm 0.8 mm 0.8 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below 115,045In Stock
120,000Expected 10/13/2026
Cut Tape
$0.10
$0.064
$0.05
$0.045
Reel
$0.022
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 470 Ohms 1.5 A 25 % 130 mOhms - 55 C + 125 C 1.6 mm 0.8 mm 0.8 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads FB SMD 0603inch 100o hm NONAUTO Alternate Sizing Guide Below 26,231In Stock
Cut Tape
$0.25
$0.176
$0.153
$0.137
Reel
$0.059
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 100 Ohms 3.7 A 25 % 26 mOhms - 55 C + 125 C 1.6 mm 0.8 mm 0.6 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 330 OHM Alternate Sizing Guide Below 15,183In Stock
56,000On Order
Cut Tape
$0.31
$0.218
$0.19
$0.17
Reel
$0.08
Min.: 1
Mult.: 1
: 4,000
BLM21_xN Ferrite Chip Beads SMD/SMT 0805 (2012 metric) 330 Ohms 2.8 A 25 % 40 mOhms - 55 C + 125 C 2 mm 1.25 mm 0.85 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 1000 OHM Alternate Sizing Guide Below 28,555In Stock
20,000Expected 2/1/2027
Cut Tape
$0.25
$0.176
$0.153
$0.137
Reel
$0.059
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 1 kOhms 1.2 A 25 % 222 mOhms - 55 C + 125 C 1.6 mm 0.8 mm 0.6 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads Chip Ferrite 0805, 4mOhms Res, 30Ohms Imp, 8.5A 98,778In Stock
180,000Expected 12/7/2026
Cut Tape
$0.21
$0.147
$0.128
$0.115
Reel
$0.048
Min.: 1
Mult.: 1
: 4,000
BLM21_xN Ferrite Chip Beads SMD/SMT 0805 (2012 metric) 30 Ohms 8.5 A 4 mOhms - 55 C + 125 C 2 mm 1.25 mm 0.85 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 1000 OHM Alternate Sizing Guide Below 149,198In Stock
Cut Tape
$0.31
$0.218
$0.19
$0.17
Reel
$0.075
Min.: 1
Mult.: 1
: 4,000
BLM21_xN Ferrite Chip Beads SMD/SMT 0805 (2012 metric) 1 kOhms 1.6 A 25 % 120 mOhms - 55 C + 125 C 2 mm 1.25 mm 0.85 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 470 OHM Alternate Sizing Guide Below 37,340In Stock
28,000Expected 3/22/2027
Cut Tape
$0.33
$0.225
$0.195
$0.175
Reel
$0.076
Min.: 1
Mult.: 1
: 4,000
BLM21_xN Ferrite Chip Beads SMD/SMT 0805 (2012 metric) 470 Ohms 2.5 A 25 % 50 mOhms - 55 C + 125 C 2 mm 1.25 mm 0.85 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 120 OHM Alternate Sizing Guide Below 18,633In Stock
20,000Expected 11/27/2026
Cut Tape
$0.10
$0.068
$0.053
$0.048
Reel
$0.02
Min.: 1
Mult.: 1
: 10,000
BLM15_SN Ferrite Chip Beads SMD/SMT 0402 (1005 metric) 120 Ohms 1.5 A 25 % 70 mOhms - 55 C + 125 C 1 mm 0.5 mm 0.5 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 20 OHM Alternate Sizing Guide Below 59,805In Stock
110,000Expected 12/1/2026
Cut Tape
$0.10
$0.068
$0.053
$0.048
Reel
$0.02
Min.: 1
Mult.: 1
: 10,000
BLM15_SN Ferrite Beads SMD/SMT 0402 (1005 metric) 20 Ohms 3.8 A 25 % 11 mOhms - 55 C + 125 C 1 mm 0.5 mm 0.5 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 22 OHM Alternate Sizing Guide Below 71,177In Stock
124,000On Order
Cut Tape
$0.17
$0.123
$0.107
$0.096
Reel
$0.045
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 22 Ohms 6 A 25 % 8 mOhms - 55 C + 125 C 1.6 mm 0.8 mm 0.8 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads FB SMD 0603inch 220o hm NONAUTO Alternate Sizing Guide Below 6,310In Stock
8,000Expected 12/4/2026
Cut Tape
$0.27
$0.186
$0.162
$0.145
Reel
$0.062
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 220 Ohms 2.8 A 25 % 48 mOhms - 55 C + 125 C 1.6 mm 0.8 mm 0.6 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 600 OHM Alternate Sizing Guide Below 55In Stock
88,000On Order
Cut Tape
$0.27
$0.186
$0.162
$0.145
Reel
$0.058
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 600 Ohms 1.5 A 25 % 168 mOhms - 55 C + 125 C 1.6 mm 0.8 mm 0.6 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 110 OHM Alternate Sizing Guide Below 15,096In Stock
216,000On Order
Cut Tape
$0.31
$0.218
$0.19
$0.17
Reel
$0.076
Min.: 1
Mult.: 1
: 4,000
BLM21_xN Ferrite Chip Beads SMD/SMT 0805 (2012 metric) 110 Ohms 5 A 25 % 13 mOhms - 55 C + 125 C 2 mm 1.25 mm 0.85 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below 214,020In Stock
135,000Expected 2/25/2027
Cut Tape
$0.42
$0.293
$0.252
$0.225
Reel
$0.101
Min.: 1
Mult.: 1
: 3,000
BLM31_SN Ferrite Beads SMD/SMT 1206 (3216 metric) 50 Ohms 12 A 25 % 1.6 mOhms - 55 C + 125 C 3.2 mm 1.6 mm 1.1 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below
187,491On Order
Cut Tape
$0.40
$0.269
$0.234
$0.209
Reel
$0.097
Min.: 1
Mult.: 1
: 2,500
BLM31KN_SN Ferrite Chip Beads SMD/SMT 1206 (3216 metric) 1 kOhms 2 A 25 % 75 mOhms - 55 C + 125 C 3.2 mm 1.6 mm 1.6 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 270 OHM 4.5A Alternate Sizing Guide Below
296,956On Order
Cut Tape
$0.38
$0.269
$0.234
$0.209
Reel
$0.097
Min.: 1
Mult.: 1
: 2,500
BLM31KN_SN Ferrite Chip Beads SMD/SMT 1206 (3216 metric) 270 Ohms 4.5 A 25 % 16 mOhms - 55 C + 125 C 3.2 mm 1.6 mm 1.6 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 470 OHM Alternate Sizing Guide Below
265,882On Order
Cut Tape
$0.38
$0.269
$0.234
$0.209
Reel
$0.097
Min.: 1
Mult.: 1
: 2,500
BLM31KN_SN Ferrite Chip Beads SMD/SMT 1206 (3216 metric) 470 Ohms 4 A 25 % 20 mOhms - 55 C + 125 C 3.2 mm 1.6 mm 1.6 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 70 OHM Alternate Sizing Guide Below 1,337In Stock
40,000On Order
Cut Tape
$0.31
$0.218
$0.19
$0.17
Reel
$0.075
Min.: 1
Mult.: 1
: 4,000
BLM21_xN Ferrite Chip Beads SMD/SMT 0805 (2012 metric) 70 Ohms 6 A 25 % 9 mOhms - 55 C + 125 C 2 mm 1.25 mm 0.85 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below
213,500On Order
Cut Tape
$0.14
$0.066
$0.057
$0.046
Reel
$0.023
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 330 Ohms 1.7 A 25 % 80 mOhms - 55 C + 125 C 1.6 mm 0.8 mm 0.8 mm Reel, Cut Tape, MouseReel