EMI Filters / EMI Suppression

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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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Types of EMI Filters / EMI Suppression

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Part #

Ferrite Beads

BLM02KX180SN1D
Murata Electronics
1: $0.34
43,000In Stock

Mfr. Part No.
BLM02KX180SN1D

Mouser Part No
81-BLM02KX180SN1D

Murata Electronics

Ferrite Beads

Learn More

Datasheet

43,000In Stock

Cut Tape

$0.34

$0.239

$0.208

$0.186

View

Reel

$0.087

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

Ferrite Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Ferrite Beads 30 OHM Alternate Sizing Guide Below

BLM18SP300SN1D
Murata Electronics
1: $0.231
87,588In 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

87,588In Stock

Cut Tape

$0.231

$0.162

$0.14

$0.126

View

Reel

$0.079

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM21SP601SN1D
Murata Electronics
1: $0.422
425,394In 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

425,394In Stock

Cut Tape

$0.422

$0.296

$0.258

$0.231

View

Reel

$0.103

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

EMI Filter Circuits 500M Ohm 100Volts 20A

BNX02301L
Murata Electronics
1: $7.11
21,923In Stock
13,600On Order

Mfr. Part No.
BNX02301L

Mouser Part No
81-BNX023-01L

Murata Electronics

EMI Filter Circuits 500M Ohm 100Volts 20A

Learn More

Datasheet

21,923In Stock

13,600On Order

Cut Tape

$7.11

$5.81

$5.36

$5.05

Reel

$3.84

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filter Arrays

LC Filter

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

EMI Filter Circuits 4.7 UF 50V 20A

BNX024H01L
Murata Electronics
1: $8.26
15,859In Stock

Mfr. Part No.
BNX024H01L

Mouser Part No
81-BNX024H01L

Murata Electronics

EMI Filter Circuits 4.7 UF 50V 20A

Learn More

Datasheet

15,859In Stock

Cut Tape

$8.26

$7.36

$6.54

$6.17

Reel

$4.43

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filter Arrays

LC Filter

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

EMI Filter Circuits 10.0 UF 50V 20A

BNX026H01L
Murata Electronics
1: $9.30
19,882In Stock
13,200Expected 21/2/2028

Mfr. Part No.
BNX026H01L

Mouser Part No
81-BNX026H01L

Murata Electronics

EMI Filter Circuits 10.0 UF 50V 20A

Learn More

Datasheet

19,882In Stock

13,200Expected 21/2/2028

Cut Tape

$9.30

$7.59

$6.75

$6.39

Reel

$5.00

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filter Arrays

LC Filter

- 55 C

+ 125 C

AEC-Q200

Reel, Cut Tape, MouseReel

EMI Filter Circuits 22.0 UF 16V 20A

BNX027H01L
Murata Electronics
1: $9.30
5,943In Stock

Mfr. Part No.
BNX027H01L

Mouser Part No
81-BNX027H01L

Murata Electronics

EMI Filter Circuits 22.0 UF 16V 20A

Learn More

Datasheet

5,943In Stock

Cut Tape

$9.30

$7.59

$6.99

$6.57

Reel

$5.00

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filter Arrays

LC Filter

- 55 C

+ 125 C

AEC-Q200

Reel, Cut Tape, MouseReel

Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below

BLM18KG601SN1D
Murata Electronics
1: $0.136
768,760In Stock
520,000Expected 20/10/2026

Mfr. Part No.
BLM18KG601SN1D

Mouser Part No
81-BLM18KG601SN1D

Murata Electronics

Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

768,760In Stock

520,000Expected 20/10/2026

Cut Tape

$0.136

$0.087

$0.068

$0.061

Reel

$0.03

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

EMI Filter Circuits 35 DB 50V 20A SMD

BNX022-01L
Murata Electronics
1: $6.64
6,387In Stock
32,000On Order

Mfr. Part No.
BNX022-01L

Mouser Part No
81-BNX022-01L

Murata Electronics

EMI Filter Circuits 35 DB 50V 20A SMD

Learn More

Datasheet

6,387In Stock

32,000On Order

Cut Tape

$6.64

$5.41

$4.99

$4.71

Reel

$3.56

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filter Arrays

LC Filter

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM18KG102SN1D
Murata Electronics
1: $0.136
190,073In Stock

Mfr. Part No.
BLM18KG102SN1D

Mouser Part No
81-BLM18KG102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

Learn More

Datasheet

190,073In Stock

Cut Tape

$0.136

$0.087

$0.068

$0.061

Reel

$0.031

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below

BLM18KG221SN1D
Murata Electronics
1: $0.136
468,632In Stock

Mfr. Part No.
BLM18KG221SN1D

Mouser Part No
81-BLM18KG221SN1D

Murata Electronics

Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

468,632In Stock

Cut Tape

$0.136

$0.087

$0.068

$0.061

Reel

$0.03

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below

BLM18KG471SN1D
Murata Electronics
1: $0.136
119,231In Stock
120,000Expected 8/10/2026

Mfr. Part No.
BLM18KG471SN1D

Mouser Part No
81-BLM18KG471SN1D

Murata Electronics

Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

119,231In Stock

120,000Expected 8/10/2026

Cut Tape

$0.136

$0.087

$0.068

$0.061

Reel

$0.03

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Ferrite Beads 22 OHM Alternate Sizing Guide Below

BLM18SD220SN1D
Murata Electronics
1: $0.231
40,459In 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

40,459In Stock

96,000On Order

Cut Tape

$0.231

$0.167

$0.146

$0.131

View

Reel

$0.061

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Ferrite Beads 330 OHM Alternate Sizing Guide Below

BLM21SP331SN1D
Murata Electronics
1: $0.422
24,397In Stock
16,000Expected 19/11/2026

Mfr. Part No.
BLM21SP331SN1D

Mouser Part No
81-BLM21SP331SN1D

Murata Electronics

Ferrite Beads 330 OHM Alternate Sizing Guide Below

Learn More

Datasheet

24,397In Stock

16,000Expected 19/11/2026

Cut Tape

$0.422

$0.296

$0.258

$0.231

View

Reel

$0.109

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Common Mode Chokes / Filters 800 NH

PLT10HH450180PNL
Murata Electronics
1: $13.67
1,018In Stock

Mfr. Part No.
PLT10HH450180PNL

Mouser Part No
81-PLT10HH450180PNL

Murata Electronics

Common Mode Chokes / Filters 800 NH

Learn More

Datasheet

1,018In Stock

Cut Tape

$13.67

$11.40

$10.55

$10.00

Reel

$9.14

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

- 55 C

+ 125 C

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Chokes / Filters 9 UH

PLT10HH501100PNL
Murata Electronics
1: $6.15
3,698In Stock

Mfr. Part No.
PLT10HH501100PNL

Mouser Part No
81-PLT10HH501100PNL

Murata Electronics

Common Mode Chokes / Filters 9 UH

Learn More

Datasheet

3,698In Stock

Cut Tape

$6.15

$5.06

$4.68

$4.42

Reel

$4.04

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

- 55 C

+ 105 C

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Chokes / Filters 14 UH 100V 6A

PLT10HH9016R0PNL
Murata Electronics
1: $6.15
1,551In Stock

Mfr. Part No.
PLT10HH9016R0PNL

Mouser Part No
81-PLT10HH9016R0PNL

Murata Electronics

Common Mode Chokes / Filters 14 UH 100V 6A

Learn More

Datasheet

1,551In Stock

Cut Tape

$6.15

$5.06

$4.68

$4.42

Reel

$4.04

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

- 55 C

+ 125 C

AEC-Q200

Reel, Cut Tape, MouseReel

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM21SP102SN1D
Murata Electronics
1: $0.422
154,785In Stock

Mfr. Part No.
BLM21SP102SN1D

Mouser Part No
81-BLM21SP102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

Learn More

Datasheet

154,785In Stock

Cut Tape

$0.422

$0.296

$0.258

$0.231

View

Reel

$0.103

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Ferrite Beads 110 OHM Alternate Sizing Guide Below

BLM21SP111SN1D
Murata Electronics
1: $0.422
40,747In 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

40,747In Stock

216,000On Order

Cut Tape

$0.422

$0.296

$0.258

$0.231

View

Reel

$0.103

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

EMI Filter Circuits 16 V 15A

BNX028-01L
Murata Electronics
1: $8.26
1,784In Stock
12,800On Order

Mfr. Part No.
BNX028-01L

Mouser Part No
81-BNX028-01L

Murata Electronics

EMI Filter Circuits 16 V 15A

Learn More

Datasheet

1,784In Stock

12,800On Order

Cut Tape

$8.26

$6.73

$6.22

$5.85

Reel

$4.43

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

EMI Filter Circuits

EMI Network Filters

LC Filter

- 40 C

+ 105 C

Reel, Cut Tape, MouseReel

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

PLT10HH101150PNL
Murata Electronics
1: $13.89
1,038In Stock
3,500On Order

Mfr. Part No.
PLT10HH101150PNL

Mouser Part No
81-PLT10HH101150PNL

Murata Electronics

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

Learn More

Datasheet

1,038In Stock

3,500On Order

Cut Tape

$13.89

$11.71

$10.84

$10.39

Reel

$9.68

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

- 55 C

+ 125 C

AEC-Q200

Reel, Cut Tape, MouseReel

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

PLT10HH1026R0PNL
Murata Electronics
1: $6.15
2,850In Stock
5,625On Order

Mfr. Part No.
PLT10HH1026R0PNL

Mouser Part No
81-PLT10HH1026R0PNL

Murata Electronics

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

Learn More

Datasheet

2,850In Stock

5,625On Order

Cut Tape

$6.15

$5.06

$4.68

$4.42

Reel

$4.04

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

- 55 C

+ 105 C

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Chokes / Filters 6 UH

PLT10HH401100PNL
Murata Electronics
1: $6.51
840In Stock
1,250Expected 23/9/2026

Mfr. Part No.
PLT10HH401100PNL

Mouser Part No
81-PLT10HH401100PNL

Murata Electronics

Common Mode Chokes / Filters 6 UH

Learn More

Datasheet

840In Stock

1,250Expected 23/9/2026

Cut Tape

$6.51

$5.36

$4.96

$4.68

Reel

$4.28

View

MouseReel Available

Min.: 1
Mult.: 1

: 125

Common Mode Chokes

- 55 C

+ 125 C

AEC-Q200

Reel, Cut Tape, MouseReel

Ferrite Beads 120 OHM Alternate Sizing Guide Below

BLM15KD121SN1D
Murata Electronics
1: $0.136
21,817In Stock
20,000Expected 27/11/2026

Mfr. Part No.
BLM15KD121SN1D

Mouser Part No
81-BLM15KD121SN1D

Murata Electronics

Ferrite Beads 120 OHM Alternate Sizing Guide Below

Learn More

Datasheet

21,817In Stock

20,000Expected 27/11/2026

Cut Tape

$0.136

$0.092

$0.072

$0.065

View

Reel

$0.027

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Ferrite Beads

Ferrite Chip Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Ferrite Beads 20 OHM Alternate Sizing Guide Below

BLM15KD200SN1D
Murata Electronics
1: $0.136
74,061In Stock

Mfr. Part No.
BLM15KD200SN1D

Mouser Part No
81-BLM15KD200SN1D

Murata Electronics

Ferrite Beads 20 OHM Alternate Sizing Guide Below

Learn More

Datasheet

74,061In Stock

Cut Tape

$0.136

$0.092

$0.072

$0.065

View

Reel

$0.027

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Ferrite Beads

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Power Supply Line Noise Suppression for Home Audio

Types of EMI Filters / EMI Suppression

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