Passive Components – Mouser United Kingdom

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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 FB SMD 0603inch 100o hm NONAUTO Alternate Sizing Guide Below

BLM18SP101SN1D
Murata Electronics
1: £0.188
14,866In Stock
12,000Expected 23/09/2026

Mfr. Part No.
BLM18SP101SN1D

Mouser Part No
81-BLM18SP101SN1D

Murata Electronics

Ferrite Beads FB SMD 0603inch 100o hm NONAUTO Alternate Sizing Guide Below

Learn More

Datasheet

14,866In Stock

12,000Expected 23/09/2026

Cut Tape

£0.188

£0.132

£0.115

£0.103

View

Reel

£0.045

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads FB SMD 0603inch 220o hm NONAUTO Alternate Sizing Guide Below

BLM18SP221SN1D
Murata Electronics
1: £0.203
10,540In Stock

Mfr. Part No.
BLM18SP221SN1D

Mouser Part No
81-BLM18SP221SN1D

Murata Electronics

Ferrite Beads FB SMD 0603inch 220o hm NONAUTO Alternate Sizing Guide Below

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Datasheet

10,540In Stock

Cut Tape

£0.203

£0.14

£0.121

£0.109

View

Reel

£0.047

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 70 OHM Alternate Sizing Guide Below

BLM21SP700SN1D
Murata Electronics
1: £0.233
2,857In Stock
12,000Expected 21/01/2027

Mfr. Part No.
BLM21SP700SN1D

Mouser Part No
81-BLM21SP700SN1D

Murata Electronics

Ferrite Beads 70 OHM Alternate Sizing Guide Below

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Datasheet

2,857In Stock

12,000Expected 21/01/2027

Cut Tape

£0.233

£0.163

£0.142

£0.127

View

Reel

£0.06

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM18SP102SN1D
Murata Electronics
1: £0.188
925In Stock
48,000On Order

Mfr. Part No.
BLM18SP102SN1D

Mouser Part No
81-BLM18SP102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

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Datasheet

925In Stock

48,000On Order

Cut Tape

£0.188

£0.132

£0.115

£0.103

View

Reel

£0.045

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 470 OHM Alternate Sizing Guide Below

BLM21SP471SN1D
Murata Electronics
1: £0.233
10,475In Stock
32,000Expected 23/09/2026

Mfr. Part No.
BLM21SP471SN1D

Mouser Part No
81-BLM21SP471SN1D

Murata Electronics

Ferrite Beads 470 OHM Alternate Sizing Guide Below

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Datasheet

10,475In Stock

32,000Expected 23/09/2026

Cut Tape

£0.233

£0.163

£0.142

£0.127

View

Reel

£0.059

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below

BLM31KN102SN1L
Murata Electronics
1: £0.30
162In Stock
187,500On Order

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

162In Stock

187,500On Order

Cut Tape

£0.30

£0.208

£0.181

£0.162

View

Reel

£0.093

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below

BLM31SN500SN1L
Murata Electronics
1: £0.315
636In Stock
357,000On Order

Mfr. Part No.
BLM31SN500SN1L

Mouser Part No
81-BLM31SN500SN1L

Murata Electronics

Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below

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Datasheet

636In Stock

357,000On Order

Cut Tape

£0.315

£0.22

£0.189

£0.169

View

Reel

£0.093

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

EMI Filter Circuits 6.3 V 15A

BNX029-01L
Murata Electronics
1: £4.83
6,388On Order

Mfr. Part No.
BNX029-01L

Mouser Part No
81-BNX029-01L

Murata Electronics

EMI Filter Circuits 6.3 V 15A

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Datasheet

6,388On Order

Cut Tape

£4.83

£3.95

£3.63

£3.41

Reel

£2.60

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

Ferrite Beads Chip Ferrite 0805, 4mOhms Res, 30Ohms Imp, 8.5A

BLM21SN300SN1D
Murata Electronics
1: £0.158
279,778On Order

Mfr. Part No.
BLM21SN300SN1D

Mouser Part No
81-BLM21SN300SN1D

Murata Electronics

Ferrite Beads Chip Ferrite 0805, 4mOhms Res, 30Ohms Imp, 8.5A

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Datasheet

279,778On Order

Cut Tape

£0.158

£0.11

£0.096

£0.086

View

Reel

£0.052

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 270 OHM 4.5A Alternate Sizing Guide Below

BLM31KN271SN1L
Murata Electronics
1: £0.285
296,959On Order

Mfr. Part No.
BLM31KN271SN1L

Mouser Part No
81-BLM31KN271SN1L

Murata Electronics

Ferrite Beads 270 OHM 4.5A Alternate Sizing Guide Below

Learn More

Datasheet

296,959On Order

Cut Tape

£0.285

£0.202

£0.175

£0.157

View

Reel

£0.093

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 470 OHM Alternate Sizing Guide Below

BLM31KN471SN1L
Murata Electronics
1: £0.30
266,948On Order

Mfr. Part No.
BLM31KN471SN1L

Mouser Part No
81-BLM31KN471SN1L

Murata Electronics

Ferrite Beads 470 OHM Alternate Sizing Guide Below

Learn More

Datasheet

266,948On Order

Cut Tape

£0.30

£0.208

£0.181

£0.162

Reel

£0.10

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

EMI Filter Circuits 10.0 UF 25V 20A

BNX025H01L
Murata Electronics
1: £4.56
28,392On Order

Mfr. Part No.
BNX025H01L

Mouser Part No
81-BNX025H01L

Murata Electronics

EMI Filter Circuits 10.0 UF 25V 20A

Learn More

Datasheet

28,392On Order

Cut Tape

£4.56

£3.72

£3.43

£3.23

Reel

£2.45

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below

BLM18KG331SN1D
Murata Electronics
1: £0.083
216,000On Order

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

216,000On Order

Cut Tape

£0.083

£0.05

£0.04

£0.035

View

Reel

£0.017

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 33 OHM Alternate Sizing Guide Below

BLM18SG330SN1D
Murata Electronics
1: £0.15
86,982On Order

Mfr. Part No.
BLM18SG330SN1D

Mouser Part No
81-BLM18SG330SN1D

Murata Electronics

Ferrite Beads 33 OHM Alternate Sizing Guide Below

Learn More

Datasheet

86,982On Order

Cut Tape

£0.15

£0.104

£0.09

£0.08

View

Reel

£0.034

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM18SP601SN1D
Murata Electronics
1: £0.188
58,785On Order

Mfr. Part No.
BLM18SP601SN1D

Mouser Part No
81-BLM18SP601SN1D

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

Learn More

Datasheet

58,785On Order

Cut Tape

£0.188

£0.129

£0.113

£0.10

View

Reel

£0.046

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 180 OHM 25%

BLM21SP181SN1D
Murata Electronics
1: £0.248
132,000Expected 04/01/2027

Mfr. Part No.
BLM21SP181SN1D

Mouser Part No
81-BLM21SP181SN1D

Murata Electronics

Ferrite Beads 180 OHM 25%

Learn More

Datasheet

132,000Expected 04/01/2027

Cut Tape

£0.248

£0.169

£0.147

£0.132

View

Reel

£0.059

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 120 OHM Alternate Sizing Guide Below

BLM31KN121SN1L
Murata Electronics
1: £0.285
103,074On Order

Mfr. Part No.
BLM31KN121SN1L

Mouser Part No
81-BLM31KN121SN1L

Murata Electronics

Ferrite Beads 120 OHM Alternate Sizing Guide Below

Learn More

Datasheet

103,074On Order

Cut Tape

£0.285

£0.202

£0.175

£0.157

Reel

£0.102

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM31KN601SN1L
Murata Electronics
1: £0.308
109,401On Order

Mfr. Part No.
BLM31KN601SN1L

Mouser Part No
81-BLM31KN601SN1L

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

Learn More

Datasheet

109,401On Order

Cut Tape

£0.308

£0.211

£0.183

£0.163

View

Reel

£0.075

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below

BLM31KN801SN1L
Murata Electronics
1: £0.285
55,212On Order

Mfr. Part No.
BLM31KN801SN1L

Mouser Part No
81-BLM31KN801SN1L

Murata Electronics

Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below

Learn More

Datasheet

55,212On Order

Cut Tape

£0.285

£0.202

£0.175

£0.157

View

Reel

£0.093

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 30 OHM Alternate Sizing Guide Below

BLM15KD300SN1D
Murata Electronics
1: £0.075
59,200Expected 29/09/2026

Mfr. Part No.
BLM15KD300SN1D

Mouser Part No
81-BLM15KD300SN1D

Murata Electronics

Ferrite Beads 30 OHM Alternate Sizing Guide Below

Learn More

Datasheet

59,200Expected 29/09/2026

Cut Tape

£0.075

£0.045

£0.038

£0.031

View

Reel

£0.015

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Ferrite Beads

BLM02KX100SN1D
Murata Electronics
15,000: £0.048
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
BLM02KX100SN1D

Mouser Part No
81-BLM02KX100SN1D

Murata Electronics

Ferrite Beads

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

Reel

£0.048

Min.: 15,000
Mult.: 15,000

: 15,000

Power Supply Line Noise Suppression for Home Audio

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