Passive Components – Mouser Korea, Republic of

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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 Passive Components

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Part #

Ferrite Beads 120 OHM Alternate Sizing Guide Below

BLM15KD121SN1D
Murata Electronics
1: ₩156
31,937In Stock

Mfr. Part #
BLM15KD121SN1D

Mouser Part #
81-BLM15KD121SN1D

Murata Electronics

Ferrite Beads 120 OHM Alternate Sizing Guide Below

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Datasheet

31,937In Stock

Cut Tape

₩156

₩106.1

₩82.7

₩74.9

View

Reel

₩31.2

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

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

BLM18SP101SN1D
Murata Electronics
1: ₩390
14,941In Stock
12,000Expected 9/24/2026

Mfr. Part #
BLM18SP101SN1D

Mouser Part #
81-BLM18SP101SN1D

Murata Electronics

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

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Datasheet

14,941In Stock

12,000Expected 9/24/2026

Cut Tape

₩390

₩274.6

₩238.7

₩213.7

View

Reel

₩92

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM18SP102SN1D
Murata Electronics
1: ₩390
1,526In Stock
28,000Expected 10/29/2026

Mfr. Part #
BLM18SP102SN1D

Mouser Part #
81-BLM18SP102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

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Datasheet

1,526In Stock

28,000Expected 10/29/2026

Cut Tape

₩390

₩274.6

₩238.7

₩213.7

View

Reel

₩92

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

BLM18SP221SN1D
Murata Electronics
1: ₩421.2
11,050In Stock

Mfr. Part #
BLM18SP221SN1D

Mouser Part #
81-BLM18SP221SN1D

Murata Electronics

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

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Datasheet

11,050In Stock

Cut Tape

₩421.2

₩290.2

₩252.7

₩226.2

View

Reel

₩98.3

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 70 OHM Alternate Sizing Guide Below

BLM21SP700SN1D
Murata Electronics
1: ₩483.6
11,782In Stock
12,000Expected 1/21/2027

Mfr. Part #
BLM21SP700SN1D

Mouser Part #
81-BLM21SP700SN1D

Murata Electronics

Ferrite Beads 70 OHM Alternate Sizing Guide Below

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Datasheet

11,782In Stock

12,000Expected 1/21/2027

Cut Tape

₩483.6

₩340.1

₩296.4

₩265.2

View

Reel

₩124.8

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below

BLM31KN102SN1L
Murata Electronics
1: ₩624
346In Stock
187,500On Order

Mfr. Part #
BLM31KN102SN1L

Mouser Part #
81-BLM31KN102SN1L

Murata Electronics

Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below

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Datasheet

346In Stock

187,500On Order

Cut Tape

₩624

₩432.1

₩376

₩335.4

Reel

₩181

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 470 OHM Alternate Sizing Guide Below

BLM31KN471SN1L
Murata Electronics
1: ₩624
174,998On Order

Mfr. Part #
BLM31KN471SN1L

Mouser Part #
81-BLM31KN471SN1L

Murata Electronics

Ferrite Beads 470 OHM Alternate Sizing Guide Below

Learn More

Datasheet

174,998On Order

Cut Tape

₩624

₩432.1

₩376

₩335.4

Reel

₩176.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

EMI Filter Circuits 10.0 UF 25V 20A

BNX025H01L
Murata Electronics
1: ₩9,469.2
40In Stock
28,400On Order

Mfr. Part #
BNX025H01L

Mouser Part #
81-BNX025H01L

Murata Electronics

EMI Filter Circuits 10.0 UF 25V 20A

Learn More

Datasheet

40In Stock

28,400On Order

Cut Tape

₩9,469.2

₩7,722

₩7,129.2

₩6,708

Reel

₩5,101.2

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

Ferrite Beads 30 OHM 10% Alternate Sizing Guide Below

BLM21SN300SN1D
Murata Electronics
1: ₩327.6
279,978On Order

Mfr. Part #
BLM21SN300SN1D

Mouser Part #
81-BLM21SN300SN1D

Murata Electronics

Ferrite Beads 30 OHM 10% Alternate Sizing Guide Below

Learn More

Datasheet

279,978On Order

Cut Tape

₩327.6

₩229.3

₩199.7

₩179.4

View

Reel

₩74.9

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 270 OHM 4.5A Alternate Sizing Guide Below

BLM31KN271SN1L
Murata Electronics
1: ₩592.8
297,180On Order

Mfr. Part #
BLM31KN271SN1L

Mouser Part #
81-BLM31KN271SN1L

Murata Electronics

Ferrite Beads 270 OHM 4.5A Alternate Sizing Guide Below

Learn More

Datasheet

297,180On Order

Cut Tape

₩592.8

₩419.6

₩365

₩326

Reel

₩151.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

EMI Filter Circuits 6.3 V 15A

BNX029-01L
Murata Electronics
1: ₩10,030.8
6,388On Order

Mfr. Part #
BNX029-01L

Mouser Part #
81-BNX029-01L

Murata Electronics

EMI Filter Circuits 6.3 V 15A

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Datasheet

6,388On Order

Cut Tape

₩10,030.8

₩8,190

₩7,550.4

₩7,098

Reel

₩5,397.6

View

MouseReel Available

Min.: 1
Mult.: 1

: 400

Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below

BLM18KG331SN1D
Murata Electronics
1: ₩171.6
216,000On Order

Mfr. Part #
BLM18KG331SN1D

Mouser Part #
81-BLM18KG331SN1D

Murata Electronics

Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

216,000On Order

Cut Tape

₩171.6

₩103

₩82.7

₩71.8

Reel

₩35.9

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 33 OHM Alternate Sizing Guide Below

BLM18SG330SN1D
Murata Electronics
1: ₩312
90,982On Order

Mfr. Part #
BLM18SG330SN1D

Mouser Part #
81-BLM18SG330SN1D

Murata Electronics

Ferrite Beads 33 OHM Alternate Sizing Guide Below

Learn More

Datasheet

90,982On Order

Cut Tape

₩312

₩215.3

₩187.2

₩166.9

View

Reel

₩70.2

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM18SP601SN1D
Murata Electronics
1: ₩390
59,170On Order

Mfr. Part #
BLM18SP601SN1D

Mouser Part #
81-BLM18SP601SN1D

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

Learn More

Datasheet

59,170On Order

Cut Tape

₩390

₩268.3

₩234

₩209

View

Reel

₩96.7

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 180 OHM 25%

BLM21SP181SN1D
Murata Electronics
1: ₩514.8
135,990On Order

Mfr. Part #
BLM21SP181SN1D

Mouser Part #
81-BLM21SP181SN1D

Murata Electronics

Ferrite Beads 180 OHM 25%

Learn More

Datasheet

135,990On Order

Cut Tape

₩514.8

₩351

₩304.2

₩273

View

Reel

₩117

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 470 OHM Alternate Sizing Guide Below

BLM21SP471SN1D
Murata Electronics
1: ₩483.6
11,271In Stock
32,000On Order

Mfr. Part #
BLM21SP471SN1D

Mouser Part #
81-BLM21SP471SN1D

Murata Electronics

Ferrite Beads 470 OHM Alternate Sizing Guide Below

Learn More

Datasheet

11,271In Stock

32,000On Order

Cut Tape

₩483.6

₩340.1

₩296.4

₩265.2

View

Reel

₩118.6

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Beads 120 OHM Alternate Sizing Guide Below

BLM31KN121SN1L
Murata Electronics
1: ₩592.8
102,864On Order

Mfr. Part #
BLM31KN121SN1L

Mouser Part #
81-BLM31KN121SN1L

Murata Electronics

Ferrite Beads 120 OHM Alternate Sizing Guide Below

Learn More

Datasheet

102,864On Order

Cut Tape

₩592.8

₩419.6

₩365

₩326

Reel

₩151.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM31KN601SN1L
Murata Electronics
1: ₩639.6
110,401On Order

Mfr. Part #
BLM31KN601SN1L

Mouser Part #
81-BLM31KN601SN1L

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

Learn More

Datasheet

110,401On Order

Cut Tape

₩639.6

₩438.4

₩380.6

₩340.1

Reel

₩151.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below

BLM31KN801SN1L
Murata Electronics
1: ₩592.8
71,212On Order

Mfr. Part #
BLM31KN801SN1L

Mouser Part #
81-BLM31KN801SN1L

Murata Electronics

Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below

Learn More

Datasheet

71,212On Order

Cut Tape

₩592.8

₩419.6

₩365

₩326

Reel

₩151.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Beads 30 OHM Alternate Sizing Guide Below

BLM15KD300SN1D
Murata Electronics
1: ₩156
59,200On Order

Mfr. Part #
BLM15KD300SN1D

Mouser Part #
81-BLM15KD300SN1D

Murata Electronics

Ferrite Beads 30 OHM Alternate Sizing Guide Below

Learn More

Datasheet

59,200On Order

Cut Tape

₩156

₩93.6

₩78

₩65.5

View

Reel

₩31.2

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Ferrite Beads

BLM02KX100SN1D
Murata Electronics
15,000: ₩99.8
Non-Stocked Lead-Time 11 Weeks

Mfr. Part #
BLM02KX100SN1D

Mouser Part #
81-BLM02KX100SN1D

Murata Electronics

Ferrite Beads

Learn More

Datasheet

Non-Stocked Lead-Time 11 Weeks

Reel

₩99.8

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

: 15,000

Power Supply Line Noise Suppression for Home Audio

Types of Passive Components

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