Passive Components – Mouser South Africa

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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 1000 OHM Alternate Sizing Guide Below

BLM21SP102SN1D
Murata Electronics
1: $0.311
187,261In Stock

Mfr. Part No.
BLM21SP102SN1D

Mouser Part No
81-BLM21SP102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

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Datasheet

187,261In Stock

Cut Tape

$0.311

$0.217

$0.19

$0.17

View

Reel

$0.107

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

BLM02KX180SN1D
Murata Electronics
1: $0.25
44,500In Stock

Mfr. Part No.
BLM02KX180SN1D

Mouser Part No
81-BLM02KX180SN1D

Murata Electronics

Ferrite Beads

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Datasheet

44,500In Stock

Cut Tape

$0.25

$0.176

$0.154

$0.137

View

Reel

$0.064

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below

BLM31KN102SN1L
Murata Electronics
1: $0.38
138,717In Stock

Mfr. Part No.
BLM31KN102SN1L

Mouser Part No
81-BLM31KN102SN1L

Murata Electronics

Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below

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Datasheet

138,717In Stock

Cut Tape

$0.38

$0.269

$0.234

$0.209

Reel

$0.135

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

EMI Filter Circuits 35 DB 50V 20A SMD

BNX022-01L
Murata Electronics
1: $4.88
13,011In Stock
9,600Expected 2027/01/04

Mfr. Part No.
BNX022-01L

Mouser Part No
81-BNX022-01L

Murata Electronics

EMI Filter Circuits 35 DB 50V 20A SMD

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Datasheet

13,011In Stock

9,600Expected 2027/01/04

Cut Tape

$4.88

$3.98

$3.68

$3.47

Reel

$2.58

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits 500M Ohm 100Volts 15A

BNX02301L
Murata Electronics
1: $5.11
9,154In Stock
18,400On Order

Mfr. Part No.
BNX02301L

Mouser Part No
81-BNX023-01L

Murata Electronics

EMI Filter Circuits 500M Ohm 100Volts 15A

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Datasheet

9,154In Stock

18,400On Order

Cut Tape

$5.11

$4.23

$3.92

$3.71

Reel

$2.85

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits 4.7 UF 50V 20A

BNX024H01L
Murata Electronics
1: $6.07
18,619In Stock

Mfr. Part No.
BNX024H01L

Mouser Part No
81-BNX024H01L

Murata Electronics

EMI Filter Circuits 4.7 UF 50V 20A

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Datasheet

18,619In Stock

Cut Tape

$6.07

$5.56

$5.05

$4.56

Reel

$3.26

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits 10.0 UF 25V 20A

BNX025H01L
Murata Electronics
1: $6.07
11,069In Stock

Mfr. Part No.
BNX025H01L

Mouser Part No
81-BNX025H01L

Murata Electronics

EMI Filter Circuits 10.0 UF 25V 20A

Learn More

Datasheet

11,069In Stock

Cut Tape

$6.07

$4.95

$4.57

$4.30

Reel

$3.27

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits 10.0 UF 50V 20A

BNX026H01L
Murata Electronics
1: $6.73
20,759In Stock
6,640Expected 2026/06/22

Mfr. Part No.
BNX026H01L

Mouser Part No
81-BNX026H01L

Murata Electronics

EMI Filter Circuits 10.0 UF 50V 20A

Learn More

Datasheet

20,759In Stock

6,640Expected 2026/06/22

Cut Tape

$6.73

$5.83

$5.50

$4.97

Reel

$3.86

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits 16 V 15A

BNX028-01L
Murata Electronics
1: $5.61
5,654In Stock

Mfr. Part No.
BNX028-01L

Mouser Part No
81-BNX028-01L

Murata Electronics

EMI Filter Circuits 16 V 15A

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Datasheet

5,654In Stock

Cut Tape

$5.61

$4.66

$4.30

$4.11

Reel

$3.41

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM18KG102SN1D
Murata Electronics
1: $0.10
182,991In Stock
100,000Expected 2026/06/29

Mfr. Part No.
BLM18KG102SN1D

Mouser Part No
81-BLM18KG102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

Learn More

Datasheet

182,991In Stock

100,000Expected 2026/06/29

Cut Tape

$0.10

$0.047

$0.04

$0.038

View

Reel

$0.024

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below

BLM18KG221SN1D
Murata Electronics
1: $0.10
295,917In Stock

Mfr. Part No.
BLM18KG221SN1D

Mouser Part No
81-BLM18KG221SN1D

Murata Electronics

Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below

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Datasheet

295,917In Stock

Cut Tape

$0.10

$0.06

$0.048

$0.043

View

Reel

$0.021

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below

BLM18KG331SN1D
Murata Electronics
1: $0.10
355,392In Stock

Mfr. Part No.
BLM18KG331SN1D

Mouser Part No
81-BLM18KG331SN1D

Murata Electronics

Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below

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Datasheet

355,392In Stock

Cut Tape

$0.10

$0.06

$0.048

$0.043

View

Reel

$0.021

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below

BLM18KG471SN1D
Murata Electronics
1: $0.10
187,838In Stock

Mfr. Part No.
BLM18KG471SN1D

Mouser Part No
81-BLM18KG471SN1D

Murata Electronics

Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below

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Datasheet

187,838In Stock

Cut Tape

$0.10

$0.064

$0.05

$0.045

View

Reel

$0.022

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below

BLM18KG601SN1D
Murata Electronics
1: $0.10
316,205In Stock
680,000On Order

Mfr. Part No.
BLM18KG601SN1D

Mouser Part No
81-BLM18KG601SN1D

Murata Electronics

Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

316,205In Stock

680,000On Order

Cut Tape

$0.10

$0.064

$0.05

$0.045

Reel

$0.022

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 30 OHM Alternate Sizing Guide Below

BLM18SP300SN1D
Murata Electronics
1: $0.23
94,555In Stock

Mfr. Part No.
BLM18SP300SN1D

Mouser Part No
81-BLM18SP300SN1D

Murata Electronics

Ferrite Beads 30 OHM Alternate Sizing Guide Below

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Datasheet

94,555In Stock

Cut Tape

$0.23

$0.157

$0.137

$0.123

View

Reel

$0.06

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM18SP601SN1D
Murata Electronics
1: $0.25
21,672In Stock

Mfr. Part No.
BLM18SP601SN1D

Mouser Part No
81-BLM18SP601SN1D

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

Learn More

Datasheet

21,672In Stock

Cut Tape

$0.25

$0.172

$0.15

$0.134

View

Reel

$0.062

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 110 OHM Alternate Sizing Guide Below

BLM21SP111SN1D
Murata Electronics
1: $0.311
89,382In Stock
56,000Expected 2026/08/10

Mfr. Part No.
BLM21SP111SN1D

Mouser Part No
81-BLM21SP111SN1D

Murata Electronics

Ferrite Beads 110 OHM Alternate Sizing Guide Below

Learn More

Datasheet

89,382In Stock

56,000Expected 2026/08/10

Cut Tape

$0.311

$0.217

$0.186

$0.167

View

Reel

$0.079

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM21SP601SN1D
Murata Electronics
1: $0.311
62,708In Stock
420,000Expected 2026/12/03

Mfr. Part No.
BLM21SP601SN1D

Mouser Part No
81-BLM21SP601SN1D

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

Learn More

Datasheet

62,708In Stock

420,000Expected 2026/12/03

Cut Tape

$0.311

$0.214

$0.186

$0.166

View

Reel

$0.079

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 120 OHM Alternate Sizing Guide Below

BLM31KN121SN1L
Murata Electronics
1: $0.38
31,354In Stock
37,500Expected 2026/11/26

Mfr. Part No.
BLM31KN121SN1L

Mouser Part No
81-BLM31KN121SN1L

Murata Electronics

Ferrite Beads 120 OHM Alternate Sizing Guide Below

Learn More

Datasheet

31,354In Stock

37,500Expected 2026/11/26

Cut Tape

$0.38

$0.266

$0.23

$0.204

Reel

$0.126

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 470 OHM Alternate Sizing Guide Below

BLM31KN471SN1L
Murata Electronics
1: $0.38
109,379In Stock
75,000Expected 2027/01/04

Mfr. Part No.
BLM31KN471SN1L

Mouser Part No
81-BLM31KN471SN1L

Murata Electronics

Ferrite Beads 470 OHM Alternate Sizing Guide Below

Learn More

Datasheet

109,379In Stock

75,000Expected 2027/01/04

Cut Tape

$0.38

$0.269

$0.234

$0.209

Reel

$0.134

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM31KN601SN1L
Murata Electronics
1: $0.311
16,145In Stock
25,000Expected 2027/01/08

Mfr. Part No.
BLM31KN601SN1L

Mouser Part No
81-BLM31KN601SN1L

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

Learn More

Datasheet

16,145In Stock

25,000Expected 2027/01/08

Cut Tape

$0.311

$0.217

$0.185

$0.164

View

Reel

$0.10

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below

BLM31KN801SN1L
Murata Electronics
1: $0.34
31,555In Stock

Mfr. Part No.
BLM31KN801SN1L

Mouser Part No
81-BLM31KN801SN1L

Murata Electronics

Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below

Learn More

Datasheet

31,555In Stock

Cut Tape

$0.34

$0.238

$0.204

$0.184

View

Reel

$0.123

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below

BLM31SN500SN1L
Murata Electronics
1: $0.40
59,558In Stock
90,000Expected 2026/10/19

Mfr. Part No.
BLM31SN500SN1L

Mouser Part No
81-BLM31SN500SN1L

Murata Electronics

Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below

Learn More

Datasheet

59,558In Stock

90,000Expected 2026/10/19

Cut Tape

$0.40

$0.279

$0.242

$0.216

View

Reel

$0.114

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

EMI Filter Circuits 6.3 V 15A

BNX029-01L
Murata Electronics
1: $5.91
526In Stock
400Expected 2027/02/08

Mfr. Part No.
BNX029-01L

Mouser Part No
81-BNX029-01L

Murata Electronics

EMI Filter Circuits 6.3 V 15A

Learn More

Datasheet

526In Stock

400Expected 2027/02/08

Cut Tape

$5.91

$4.83

$4.45

$4.18

Reel

$3.45

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

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

PLT10HH101150PNL
Murata Electronics
1: $10.98
414In Stock
1,375On Order

Mfr. Part No.
PLT10HH101150PNL

Mouser Part No
81-PLT10HH101150PNL

Murata Electronics

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

Learn More

Datasheet

414In Stock

1,375On Order

Cut Tape

$10.98

$8.99

$8.30

$7.85

Reel

$7.00

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Power Supply Line Noise Suppression for Home Audio

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