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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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Part #

Ferrite Beads 30 OHM Alternate Sizing Guide Below

BLM18SP300SN1D
Murata Electronics
1: £0.173
92,602In Stock

Mfr. Part No.
BLM18SP300SN1D

Mouser Part No
81-BLM18SP300SN1D

Murata Electronics

Ferrite Beads 30 OHM Alternate Sizing Guide Below

Learn More

Datasheet

92,602In Stock

Cut Tape

£0.173

£0.12

£0.105

£0.094

View

Reel

£0.045

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM21SP601SN1D
Murata Electronics
1: £0.233
435,604In Stock

Mfr. Part No.
BLM21SP601SN1D

Mouser Part No
81-BLM21SP601SN1D

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

Learn More

Datasheet

435,604In Stock

Cut Tape

£0.233

£0.163

£0.142

£0.127

View

Reel

£0.079

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

EMI Filter Circuits 35 DB 50V 20A SMD

BNX022-01L
Murata Electronics
1: £3.67
13,068In Stock
13,600Expected 01/10/2026

Mfr. Part No.
BNX022-01L

Mouser Part No
81-BNX022-01L

Murata Electronics

EMI Filter Circuits 35 DB 50V 20A SMD

Learn More

Datasheet

13,068In Stock

13,600Expected 01/10/2026

Cut Tape

£3.67

£2.99

£2.76

£2.60

Reel

£1.96

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filter Arrays

Block Type Filter

- 40 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

EMI Filter Circuits 500M Ohm 100Volts 20A

BNX02301L
Murata Electronics
1: £3.93
12,076In Stock
12,400Expected 18/08/2026

Mfr. Part No.
BNX02301L

Mouser Part No
81-BNX023-01L

Murata Electronics

EMI Filter Circuits 500M Ohm 100Volts 20A

Learn More

Datasheet

12,076In Stock

12,400Expected 18/08/2026

Cut Tape

£3.93

£3.20

£2.96

£2.78

Reel

£2.12

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filter Arrays

Block Type Filter

- 40 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

EMI Filter Circuits 4.7 UF 50V 20A

BNX024H01L
Murata Electronics
1: £4.56
16,679In Stock

Mfr. Part No.
BNX024H01L

Mouser Part No
81-BNX024H01L

Murata Electronics

EMI Filter Circuits 4.7 UF 50V 20A

Learn More

Datasheet

16,679In Stock

Cut Tape

£4.56

£4.06

£3.61

£3.40

Reel

£2.44

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filter Arrays

Block Type Filter

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

EMI Filter Circuits 10.0 UF 25V 20A

BNX025H01L
Murata Electronics
1: £4.56
4,608In Stock
17,600On Order

Mfr. Part No.
BNX025H01L

Mouser Part No
81-BNX025H01L

Murata Electronics

EMI Filter Circuits 10.0 UF 25V 20A

Learn More

Datasheet

4,608In Stock

17,600On Order

Cut Tape

£4.56

£3.72

£3.43

£3.23

Reel

£2.45

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filter Arrays

Block Type Filter

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

EMI Filter Circuits 10.0 UF 50V 20A

BNX026H01L
Murata Electronics
1: £5.13
23,764In Stock

Mfr. Part No.
BNX026H01L

Mouser Part No
81-BNX026H01L

Murata Electronics

EMI Filter Circuits 10.0 UF 50V 20A

Learn More

Datasheet

23,764In Stock

Cut Tape

£5.13

£4.19

£3.73

£3.53

Reel

£2.76

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filter Arrays

Block Type Filter

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

EMI Filter Circuits 22.0 UF 16V 20A

BNX027H01L
Murata Electronics
1: £5.13
6,024In Stock

Mfr. Part No.
BNX027H01L

Mouser Part No
81-BNX027H01L

Murata Electronics

EMI Filter Circuits 22.0 UF 16V 20A

Learn More

Datasheet

6,024In Stock

Cut Tape

£5.13

£4.19

£3.86

£3.62

Reel

£2.77

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filter Arrays

Block Type Filter

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Ferrite Beads

BLM02KX180SN1D
Murata Electronics
1: £0.188
43,000In Stock

Mfr. Part No.
BLM02KX180SN1D

Mouser Part No
81-BLM02KX180SN1D

Murata Electronics

Ferrite Beads

Learn More

Datasheet

43,000In Stock

Cut Tape

£0.188

£0.132

£0.115

£0.103

View

Reel

£0.048

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

Ferrite Beads

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Common Mode Chokes / Filters 100 OHM 300V 15A 2UH

PLT10HH101150PNL
Murata Electronics
1: £7.75
620In Stock
2,250On Order

Mfr. Part No.
PLT10HH101150PNL

Mouser Part No
81-PLT10HH101150PNL

Murata Electronics

Common Mode Chokes / Filters 100 OHM 300V 15A 2UH

Learn More

Datasheet

620In Stock

2,250On Order

Cut Tape

£7.75

£6.46

£5.98

£5.74

Reel

£5.34

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

Surface Mount Common Mode Choke

- 55 C

+ 125 C

SMD/SMT

PCB Mount

Reel, Cut Tape, MouseReel

Common Mode Chokes / Filters 10M OHM 100V 6A 20UH

PLT10HH1026R0PNL
Murata Electronics
1: £3.40
3,358In Stock
2,500Expected 21/12/2026

Mfr. Part No.
PLT10HH1026R0PNL

Mouser Part No
81-PLT10HH1026R0PNL

Murata Electronics

Common Mode Chokes / Filters 10M OHM 100V 6A 20UH

Learn More

Datasheet

3,358In Stock

2,500Expected 21/12/2026

Cut Tape

£3.40

£2.79

£2.58

£2.44

Reel

£2.23

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

- 55 C

+ 105 C

SMD/SMT

PCB Mount

Reel, Cut Tape, MouseReel

Common Mode Chokes / Filters 6 UH

PLT10HH401100PNL
Murata Electronics
1: £3.60
1,062In Stock
1,250Expected 22/12/2026

Mfr. Part No.
PLT10HH401100PNL

Mouser Part No
81-PLT10HH401100PNL

Murata Electronics

Common Mode Chokes / Filters 6 UH

Learn More

Datasheet

1,062In Stock

1,250Expected 22/12/2026

Cut Tape

£3.60

£2.96

£2.74

£2.58

Reel

£2.34

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

- 55 C

+ 125 C

SMD/SMT

PCB Mount

Reel, Cut Tape, MouseReel

Common Mode Chokes / Filters 800 NH

PLT10HH450180PNL
Murata Electronics
1: £7.44
1,034In Stock

Mfr. Part No.
PLT10HH450180PNL

Mouser Part No
81-PLT10HH450180PNL

Murata Electronics

Common Mode Chokes / Filters 800 NH

Learn More

Datasheet

1,034In Stock

Cut Tape

£7.44

£6.29

£5.82

£5.65

Reel

£4.94

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

Power Line

- 55 C

+ 125 C

SMD/SMT

PCB Mount

Reel, Cut Tape, MouseReel

Common Mode Chokes / Filters 9 UH

PLT10HH501100PNL
Murata Electronics
1: £3.40
3,897In Stock

Mfr. Part No.
PLT10HH501100PNL

Mouser Part No
81-PLT10HH501100PNL

Murata Electronics

Common Mode Chokes / Filters 9 UH

Learn More

Datasheet

3,897In Stock

Cut Tape

£3.40

£2.79

£2.58

£2.44

Reel

£2.23

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

- 55 C

+ 105 C

SMD/SMT

PCB Mount

Reel, Cut Tape, MouseReel

Common Mode Chokes / Filters 14 UH 100V 6A

PLT10HH9016R0PNL
Murata Electronics
1: £3.40
2,095In Stock

Mfr. Part No.
PLT10HH9016R0PNL

Mouser Part No
81-PLT10HH9016R0PNL

Murata Electronics

Common Mode Chokes / Filters 14 UH 100V 6A

Learn More

Datasheet

2,095In Stock

Cut Tape

£3.40

£2.79

£2.58

£2.44

Reel

£2.23

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

Power Line

- 55 C

+ 125 C

SMD/SMT

PCB Mount

Reel, Cut Tape, MouseReel

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM18KG102SN1D
Murata Electronics
1: £0.075
243,553In Stock

Mfr. Part No.
BLM18KG102SN1D

Mouser Part No
81-BLM18KG102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

Learn More

Datasheet

243,553In Stock

Cut Tape

£0.075

£0.048

£0.038

£0.034

Reel

£0.017

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below

BLM18KG221SN1D
Murata Electronics
1: £0.075
534,662In Stock

Mfr. Part No.
BLM18KG221SN1D

Mouser Part No
81-BLM18KG221SN1D

Murata Electronics

Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

534,662In Stock

Cut Tape

£0.075

£0.046

£0.038

£0.033

View

Reel

£0.017

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

Chip Ferrite Bead Single Type

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below

BLM18KG471SN1D
Murata Electronics
1: £0.075
142,115In Stock
120,000Expected 08/10/2026

Mfr. Part No.
BLM18KG471SN1D

Mouser Part No
81-BLM18KG471SN1D

Murata Electronics

Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

142,115In Stock

120,000Expected 08/10/2026

Cut Tape

£0.075

£0.048

£0.038

£0.034

Reel

£0.017

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

Chip Ferrite Bead Single Type

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below

BLM18KG601SN1D
Murata Electronics
1: £0.075
480,422In Stock
880,000On Order

Mfr. Part No.
BLM18KG601SN1D

Mouser Part No
81-BLM18KG601SN1D

Murata Electronics

Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

480,422In Stock

880,000On Order

Cut Tape

£0.075

£0.048

£0.038

£0.034

View

Reel

£0.017

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

Chip Ferrite Bead Single Type

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Ferrite Beads 22 OHM Alternate Sizing Guide Below

BLM18SD220SN1D
Murata Electronics
1: £0.127
46,688In Stock
96,000On Order

Mfr. Part No.
BLM18SD220SN1D

Mouser Part No
81-BLM18SD220SN1D

Murata Electronics

Ferrite Beads 22 OHM Alternate Sizing Guide Below

Learn More

Datasheet

46,688In Stock

96,000On Order

Cut Tape

£0.127

£0.093

£0.08

£0.072

View

Reel

£0.034

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Ferrite Beads 30 OHM 10% Alternate Sizing Guide Below

BLM21SN300SN1D
Murata Electronics
1: £0.15
139,678In Stock
100,000Expected 21/09/2026

Mfr. Part No.
BLM21SN300SN1D

Mouser Part No
81-BLM21SN300SN1D

Murata Electronics

Ferrite Beads 30 OHM 10% Alternate Sizing Guide Below

Learn More

Datasheet

139,678In Stock

100,000Expected 21/09/2026

Cut Tape

£0.15

£0.107

£0.093

£0.083

View

Reel

£0.058

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM21SP102SN1D
Murata Electronics
1: £0.233
161,087In Stock

Mfr. Part No.
BLM21SP102SN1D

Mouser Part No
81-BLM21SP102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

Learn More

Datasheet

161,087In Stock

Cut Tape

£0.233

£0.163

£0.142

£0.127

View

Reel

£0.08

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Ferrite Beads 110 OHM Alternate Sizing Guide Below

BLM21SP111SN1D
Murata Electronics
1: £0.233
50,983In Stock
216,000On Order

Mfr. Part No.
BLM21SP111SN1D

Mouser Part No
81-BLM21SP111SN1D

Murata Electronics

Ferrite Beads 110 OHM Alternate Sizing Guide Below

Learn More

Datasheet

50,983In Stock

216,000On Order

Cut Tape

£0.233

£0.163

£0.142

£0.127

View

Reel

£0.059

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Ferrite Beads 330 OHM Alternate Sizing Guide Below

BLM21SP331SN1D
Murata Electronics
1: £0.233
39,637In Stock

Mfr. Part No.
BLM21SP331SN1D

Mouser Part No
81-BLM21SP331SN1D

Murata Electronics

Ferrite Beads 330 OHM Alternate Sizing Guide Below

Learn More

Datasheet

39,637In Stock

Cut Tape

£0.233

£0.163

£0.142

£0.127

View

Reel

£0.06

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below

BLM31KN102SN1L
Murata Electronics
1: £0.30
67,152In Stock
87,500Expected 26/10/2026

Mfr. Part No.
BLM31KN102SN1L

Mouser Part No
81-BLM31KN102SN1L

Murata Electronics

Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below

Learn More

Datasheet

67,152In Stock

87,500Expected 26/10/2026

Cut Tape

£0.30

£0.208

£0.181

£0.162

Reel

£0.10

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Power Supply Line Noise Suppression for Home Audio

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