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 (CAD) 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
$0.36
$0.253
$0.22
$0.197
Reel
$0.096
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 54,700In Stock
Cut Tape
$0.158
$0.104
$0.081
$0.073
Reel
$0.042
Min.: 1
Mult.: 1
: 10,000
BLM15_SN Ferrite Chip Beads SMD/SMT 0402 (1005 metric) 30 Ohms 3.1 A 25 % 17 mOhms - 55 C + 125 C 1 mm 0.5 mm 0.5 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 30 OHM Alternate Sizing Guide Below 86,938In Stock
Cut Tape
$0.36
$0.253
$0.22
$0.197
Reel
$0.138
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 220 OHM 25% Alternate Sizing Guide Below 430,290In Stock
240,000Expected 2026-12-07
Cut Tape
$0.144
$0.092
$0.072
$0.065
Reel
$0.043
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 600 OHM 25% Alternate Sizing Guide Below 1,118,744In Stock
80,000Expected 2026-10-20
Cut Tape
$0.144
$0.092
$0.072
$0.065
Reel
$0.043
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 148,983In Stock
Cut Tape
$0.446
$0.315
$0.274
$0.245
Reel
$0.181
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 600 OHM Alternate Sizing Guide Below 415,747In Stock
Cut Tape
$0.446
$0.314
$0.274
$0.245
Reel
$0.108
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 50 OHM 12A Alternate Sizing Guide Below 205,505In Stock
135,000Expected 2027-02-25
Cut Tape
$0.605
$0.426
$0.37
$0.33
Reel
$0.24
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 Alternate Sizing Guide Below 110,586In Stock
280,000On Order
Cut Tape
$0.144
$0.092
$0.072
$0.065
Reel
$0.043
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 470 OHM 25% Alternate Sizing Guide Below 233,157In Stock
Cut Tape
$0.144
$0.092
$0.072
$0.065
Reel
$0.043
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 22 OHM Alternate Sizing Guide Below 125,173In Stock
68,000Expected 2026-12-14
Cut Tape
$0.245
$0.177
$0.156
$0.138
Reel
$0.094
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 33 OHM Alternate Sizing Guide Below 19,007In Stock
40,000Expected 2026-11-19
Cut Tape
$0.331
$0.232
$0.202
$0.18
Reel
$0.108
Min.: 1
Mult.: 1
: 4,000
BLM18_xN Ferrite Chip Beads SMD/SMT 0603 (1608 metric) 33 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 100o hm NONAUTO Alternate Sizing Guide Below 26,009In Stock
Cut Tape
$0.36
$0.253
$0.22
$0.197
Reel
$0.141
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 1000 OHM Alternate Sizing Guide Below 28,555In Stock
20,000Expected 2027-02-01
Cut Tape
$0.36
$0.253
$0.22
$0.197
Reel
$0.085
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 66,918In Stock
320,000On Order
Cut Tape
$0.302
$0.216
$0.189
$0.168
Reel
$0.109
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 110 OHM Alternate Sizing Guide Below 14,511In Stock
216,000On Order
Cut Tape
$0.446
$0.315
$0.274
$0.245
Reel
$0.181
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 330 OHM Alternate Sizing Guide Below 15,154In Stock
56,000On Order
Cut Tape
$0.446
$0.315
$0.274
$0.245
Reel
$0.181
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 470 OHM Alternate Sizing Guide Below 37,330In Stock
28,000Expected 2027-03-22
Cut Tape
$0.475
$0.324
$0.281
$0.252
Reel
$0.109
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 18,593In Stock
20,000Expected 2026-11-27
Cut Tape
$0.144
$0.098
$0.076
$0.069
Reel
$0.042
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 FB SMD 0603inch 220o hm NONAUTO Alternate Sizing Guide Below 6,280In Stock
8,000Expected 2026-12-04
Cut Tape
$0.389
$0.268
$0.233
$0.209
Reel
$0.089
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 180 OHM 25%
128,000Expected 2027-01-04
Cut Tape
$0.677
$0.478
$0.413
$0.369
Reel
$0.197
Min.: 1
Mult.: 1
: 4,000
BLM21_xN Ferrite Chip Beads SMD/SMT 0805 (2012 metric) 180 Ohms 4 A 25 % 20 mOhms - 55 C + 125 C 2 mm 1.25 mm 0.85 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below
187,273On Order
Cut Tape
$0.547
$0.387
$0.337
$0.301
Reel
$0.23
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 120 OHM Alternate Sizing Guide Below
143,000On Order
Cut Tape
$0.864
$0.608
$0.526
$0.469
Reel
$0.251
Min.: 1
Mult.: 1
: 2,500
BLM31KN_SN Ferrite Chip Beads SMD/SMT 1206 (3216 metric) 120 Ohms 6 A 25 % 9 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
$0.864
$0.608
$0.526
$0.469
Reel
$0.251
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
266,792On Order
Cut Tape
$0.864
$0.608
$0.526
$0.469
Reel
$0.251
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