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 2A Alternate Sizing Guide Below

BLM31KN102SN1L
Murata Electronics
1: $0.361
177,585In 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

177,585In Stock

Cut Tape

$0.361

$0.256

$0.222

$0.198

View

Reel

$0.10

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM21SP102SN1D
Murata Electronics
1: $0.30
218,790In 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

218,790In Stock

Cut Tape

$0.30

$0.209

$0.183

$0.162

View

Reel

$0.079

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Ferrite Beads 30 OHM Alternate Sizing Guide Below

BLM18SP300SN1D
Murata Electronics
1: $0.24
101,142In 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

101,142In Stock

Cut Tape

$0.24

$0.167

$0.147

$0.13

View

Reel

$0.06

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below

BLM31KN801SN1L
Murata Electronics
1: $0.37
66,678In Stock

Mfr. Part No.
BLM31KN801SN1L

Mouser Part No
81-BLM31KN801SN1L

Murata Electronics

Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below

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Datasheet

66,678In Stock

Cut Tape

$0.37

$0.262

$0.226

$0.202

View

Reel

$0.10

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

EMI Filter Circuits 10.0 UF 50V 20A

BNX026H01L
Murata Electronics
1: $5.99
7,038In Stock
5,525Expected 2026/02/13

Mfr. Part No.
BNX026H01L

Mouser Part No
81-BNX026H01L

Murata Electronics

EMI Filter Circuits 10.0 UF 50V 20A

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Datasheet

7,038In Stock

5,525Expected 2026/02/13

Cut Tape

$5.99

$5.22

$4.70

$4.11

Reel

$3.33

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 400

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM21SP601SN1D
Murata Electronics
1: $0.30
190,926In Stock

Mfr. Part No.
BLM21SP601SN1D

Mouser Part No
81-BLM21SP601SN1D

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

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Datasheet

190,926In Stock

Cut Tape

$0.30

$0.209

$0.183

$0.162

View

Reel

$0.079

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

EMI Filter Circuits 35 DB 50V 20A SMD

BNX022-01L
Murata Electronics
1: $5.11
14,293In Stock
6,400Expected 2026/04/21

Mfr. Part No.
BNX022-01L

Mouser Part No
81-BNX022-01L

Murata Electronics

EMI Filter Circuits 35 DB 50V 20A SMD

Learn More

Datasheet

14,293In Stock

6,400Expected 2026/04/21

Cut Tape

$5.11

$4.23

$3.92

$3.72

$3.68

Reel

$3.51

MouseReel Available

Min.: 1
Mult.: 1

Reel: 400

Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below

BLM18KG331SN1D
Murata Electronics
1: $0.10
420,442In Stock

Mfr. Part No.
BLM18KG331SN1D

Mouser Part No
81-BLM18KG331SN1D

Murata Electronics

Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

420,442In Stock

Cut Tape

$0.10

$0.06

$0.048

$0.043

Reel

$0.023

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM31KN601SN1L
Murata Electronics
1: $0.37
43,859In Stock

Mfr. Part No.
BLM31KN601SN1L

Mouser Part No
81-BLM31KN601SN1L

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

Learn More

Datasheet

43,859In Stock

Cut Tape

$0.37

$0.262

$0.208

$0.179

View

Reel

$0.10

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

EMI Filter Circuits 16 V 15A

BNX028-01L
Murata Electronics
1: $5.65
2,182In Stock
3,200Expected 2026/04/14

Mfr. Part No.
BNX028-01L

Mouser Part No
81-BNX028-01L

Murata Electronics

EMI Filter Circuits 16 V 15A

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Datasheet

2,182In Stock

3,200Expected 2026/04/14

Cut Tape

$5.65

$4.68

$4.30

$4.09

Reel

$3.37

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 400

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM18KG102SN1D
Murata Electronics
1: $0.10
92,751In Stock
60,000Expected 2026/04/23

Mfr. Part No.
BLM18KG102SN1D

Mouser Part No
81-BLM18KG102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

Learn More

Datasheet

92,751In Stock

60,000Expected 2026/04/23

Cut Tape

$0.10

$0.05

$0.042

$0.041

$0.04

Reel

$0.035

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below

BLM18KG221SN1D
Murata Electronics
1: $0.10
154,012In Stock
120,000Expected 2026/04/14

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

154,012In Stock

120,000Expected 2026/04/14

Cut Tape

$0.10

$0.06

$0.048

$0.043

View

Reel

$0.019

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below

BLM18KG471SN1D
Murata Electronics
1: $0.11
109,346In Stock
80,000Expected 2026/04/14

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

109,346In Stock

80,000Expected 2026/04/14

Cut Tape

$0.11

$0.067

$0.055

$0.048

View

Reel

$0.033

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Ferrite Beads 30 OHM 10% Alternate Sizing Guide Below

BLM21SN300SN1D
Murata Electronics
1: $0.19
54,023In Stock
52,000Expected 2026/04/14

Mfr. Part No.
BLM21SN300SN1D

Mouser Part No
81-BLM21SN300SN1D

Murata Electronics

Ferrite Beads 30 OHM 10% Alternate Sizing Guide Below

Learn More

Datasheet

54,023In Stock

52,000Expected 2026/04/14

Cut Tape

$0.19

$0.135

$0.117

$0.105

View

Reel

$0.05

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Ferrite Beads 110 OHM Alternate Sizing Guide Below

BLM21SP111SN1D
Murata Electronics
1: $0.30
43,741In Stock
20,000Expected 2026/03/13

Mfr. Part No.
BLM21SP111SN1D

Mouser Part No
81-BLM21SP111SN1D

Murata Electronics

Ferrite Beads 110 OHM Alternate Sizing Guide Below

Learn More

Datasheet

43,741In Stock

20,000Expected 2026/03/13

Cut Tape

$0.30

$0.209

$0.181

$0.162

View

Reel

$0.079

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Ferrite Beads 180 OHM 25%

BLM21SP181SN1D
Murata Electronics
1: $0.30
15,816In Stock

Mfr. Part No.
BLM21SP181SN1D

Mouser Part No
81-BLM21SP181SN1D

Murata Electronics

Ferrite Beads 180 OHM 25%

Learn More

Datasheet

15,816In Stock

Cut Tape

$0.30

$0.212

$0.184

$0.164

View

Reel

$0.092

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Ferrite Beads 330 OHM Alternate Sizing Guide Below

BLM21SP331SN1D
Murata Electronics
1: $0.30
25,608In Stock

Mfr. Part No.
BLM21SP331SN1D

Mouser Part No
81-BLM21SP331SN1D

Murata Electronics

Ferrite Beads 330 OHM Alternate Sizing Guide Below

Learn More

Datasheet

25,608In Stock

Cut Tape

$0.30

$0.209

$0.183

$0.162

View

Reel

$0.079

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Ferrite Beads 470 OHM Alternate Sizing Guide Below

BLM31KN471SN1L
Murata Electronics
1: $0.37
37,006In Stock
75,000On Order

Mfr. Part No.
BLM31KN471SN1L

Mouser Part No
81-BLM31KN471SN1L

Murata Electronics

Ferrite Beads 470 OHM Alternate Sizing Guide Below

Learn More

Datasheet

37,006In Stock

75,000On Order

Cut Tape

$0.37

$0.262

$0.227

$0.204

View

Reel

$0.10

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below

BLM31SN500SN1L
Murata Electronics
1: $0.39
36,297In Stock
41,865Expected 2026/03/04

Mfr. Part No.
BLM31SN500SN1L

Mouser Part No
81-BLM31SN500SN1L

Murata Electronics

Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below

Learn More

Datasheet

36,297In Stock

41,865Expected 2026/03/04

Cut Tape

$0.39

$0.271

$0.235

$0.211

View

Reel

$0.105

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

EMI Filter Circuits 4.7 UF 50V 20A

BNX024H01L
Murata Electronics
1: $5.82
3,394In Stock
8,390On Order

Mfr. Part No.
BNX024H01L

Mouser Part No
81-BNX024H01L

Murata Electronics

EMI Filter Circuits 4.7 UF 50V 20A

Learn More

Datasheet

3,394In Stock

8,390On Order

Cut Tape

$5.82

$5.41

$5.08

$4.27

Reel

$3.34

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 400

EMI Filter Circuits 10.0 UF 25V 20A

BNX025H01L
Murata Electronics
1: $5.70
3,854In Stock
3,439Expected 2026/03/05

Mfr. Part No.
BNX025H01L

Mouser Part No
81-BNX025H01L

Murata Electronics

EMI Filter Circuits 10.0 UF 25V 20A

Learn More

Datasheet

3,854In Stock

3,439Expected 2026/03/05

Cut Tape

$5.70

$4.68

$4.27

$4.07

Reel

$3.31

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 400

EMI Filter Circuits 6.3 V 15A

BNX029-01L
Murata Electronics
1: $6.51
1,347In Stock

Mfr. Part No.
BNX029-01L

Mouser Part No
81-BNX029-01L

Murata Electronics

EMI Filter Circuits 6.3 V 15A

Learn More

Datasheet

1,347In Stock

Cut Tape

$6.51

$5.41

$5.04

$4.76

Reel

$4.04

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 400

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

PLT10HH101150PNL
Murata Electronics
1: $10.44
547In Stock
500Expected 2026/06/18

Mfr. Part No.
PLT10HH101150PNL

Mouser Part No
81-PLT10HH101150PNL

Murata Electronics

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

Learn More

Datasheet

547In Stock

500Expected 2026/06/18

Cut Tape

$10.44

$8.50

$8.15

$7.66

Reel

$7.00

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 125

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

PLT10HH1026R0PNL
Murata Electronics
1: $4.19
1,525In Stock
1,000Expected 2026/06/18

Mfr. Part No.
PLT10HH1026R0PNL

Mouser Part No
81-PLT10HH1026R0PNL

Murata Electronics

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

Learn More

Datasheet

1,525In Stock

1,000Expected 2026/06/18

Cut Tape

$4.19

$3.55

$3.33

$3.19

Reel

$2.92

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 125

Common Mode Chokes / Filters 6 UH

PLT10HH401100PNL
Murata Electronics
1: $4.76
1,463In Stock

Mfr. Part No.
PLT10HH401100PNL

Mouser Part No
81-PLT10HH401100PNL

Murata Electronics

Common Mode Chokes / Filters 6 UH

Learn More

Datasheet

1,463In Stock

Cut Tape

$4.76

$3.87

$3.57

$3.36

Reel

$2.90

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 125

Power Supply Line Noise Suppression for Home Audio

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