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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Description Datasheet Availability Pricing (SGD) 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 Chip Ferrite 0805, 4mOhms Res, 30Ohms Imp, 8.5A
Datasheet
539,685On Order
Cut Tape
$0.435
$0.305
$0.237
$0.211
Reel
$0.129
View
MouseReel Available
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 2A Alternate Sizing Guide Below
Datasheet
187,173On Order
Cut Tape
$0.816
$0.577
$0.498
$0.443
View
Reel
$0.222
MouseReel Available
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
Datasheet
185,010On Order
Cut Tape
$0.816
$0.577
$0.498
$0.443
View
Reel
$0.222
MouseReel Available
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
Datasheet
296,956On Order
Cut Tape
$0.816
$0.577
$0.498
$0.443
View
Reel
$0.223
MouseReel Available
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
Datasheet
299,272On Order
Cut Tape
$0.816
$0.577
$0.498
$0.443
View
Reel
$0.222
MouseReel Available
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 800 OHM 2.5A Alternate Sizing Guide Below
Datasheet
79,915On Order
Cut Tape
$0.816
$0.577
$0.498
$0.443
View
Reel
$0.223
MouseReel Available
Min.: 1
Mult.: 1
: 2,500
BLM31KN_SN Ferrite Chip Beads SMD/SMT 1206 (3216 metric) 800 Ohms 2.5 A 25 % 50 mOhms - 55 C + 125 C 3.2 mm 1.6 mm 1.6 mm Reel, Cut Tape, MouseReel
Murata Electronics Ferrite Beads
Datasheet
Non-Stocked Lead-Time 11 Weeks
Reel
$0.095
Min.: 15,000
Mult.: 15,000
: 15,000
BLM02xX_SN Ferrite Beads SMD/SMT 1005 (0402 metric) 10 Ohms 1.5 A 5 Ohms 30 mOhms - 55 C + 125 C 0.4 mm 0.2 mm 0.2 mm Reel