Ferrite Beads – Mouser Hong Kong

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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

BLM02KX180SN1D
Murata Electronics
1: HK$2.06
43,000In Stock

Mfr. Part No.
BLM02KX180SN1D

Mouser Part No
81-BLM02KX180SN1D

Murata Electronics

Ferrite Beads

Learn More

Datasheet

43,000In Stock

Cut Tape

HK$2.06

HK$1.45

HK$1.26

HK$1.13

View

Reel

HK$0.526

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

BLM02xX_SN

Ferrite Beads

SMD/SMT

1005 (0402 metric)

18 Ohms

1.2 A

25 %

45 mOhms

- 55 C

+ 125 C

0.4 mm

0.2 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM18KG102SN1D
Murata Electronics
1: HK$0.822
249,032In Stock

Mfr. Part No.
BLM18KG102SN1D

Mouser Part No
81-BLM18KG102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

Learn More

Datasheet

249,032In Stock

Cut Tape

HK$0.822

HK$0.378

HK$0.329

HK$0.312

Reel

HK$0.197

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM18_xN

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

1 kOhms

1 A

25 %

- 55 C

+ 125 C

1.6 mm

0.8 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below

BLM18KG221SN1D
Murata Electronics
1: HK$0.822
536,391In Stock

Mfr. Part No.
BLM18KG221SN1D

Mouser Part No
81-BLM18KG221SN1D

Murata Electronics

Ferrite Beads 220 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

536,391In Stock

Cut Tape

HK$0.822

HK$0.51

HK$0.411

HK$0.362

Reel

HK$0.181

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM18_xN

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

220 Ohms

2.2 A

25 %

50 mOhms

- 55 C

+ 125 C

1.6 mm

0.8 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 470 OHM 25% Alternate Sizing Guide Below

BLM18KG471SN1D
Murata Electronics
1: HK$0.822
147,505In 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

147,505In Stock

120,000Expected 8/10/2026

Cut Tape

HK$0.822

HK$0.526

HK$0.411

HK$0.37

Reel

HK$0.181

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM18_xN

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

470 Ohms

1.5 A

25 %

130 mOhms

- 55 C

+ 125 C

1.6 mm

0.8 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below

BLM18KG601SN1D
Murata Electronics
1: HK$0.822
518,650In Stock
880,000On Order

Mfr. Part No.
BLM18KG601SN1D

Mouser Part No
81-BLM18KG601SN1D

Murata Electronics

Ferrite Beads 600 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

518,650In Stock

880,000On Order

Cut Tape

HK$0.822

HK$0.526

HK$0.411

HK$0.37

Reel

HK$0.181

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM18_xN

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

600 Ohms

1.3 A

25 %

150 mOhms

- 55 C

+ 125 C

1.6 mm

0.8 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 22 OHM Alternate Sizing Guide Below

BLM18SD220SN1D
Murata Electronics
1: HK$1.40
50,288In 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

50,288In Stock

96,000On Order

Cut Tape

HK$1.40

HK$1.01

HK$0.88

HK$0.789

View

Reel

HK$0.37

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM18_xN

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

22 Ohms

6 A

25 %

8 mOhms

- 55 C

+ 125 C

1.6 mm

0.8 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 30 OHM Alternate Sizing Guide Below

BLM18SP300SN1D
Murata Electronics
1: HK$1.56
92,929In Stock

Mfr. Part No.
BLM18SP300SN1D

Mouser Part No
81-BLM18SP300SN1D

Murata Electronics

Ferrite Beads 30 OHM Alternate Sizing Guide Below

Learn More

Datasheet

92,929In Stock

Cut Tape

HK$1.56

HK$1.05

HK$0.912

HK$0.822

View

Reel

HK$0.477

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM18_xN

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

30 Ohms

6 A

25 %

10 mOhms

- 55 C

+ 125 C

1.6 mm

0.8 mm

0.6 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 30 OHM 10% Alternate Sizing Guide Below

BLM21SN300SN1D
Murata Electronics
1: HK$1.64
141,424In Stock
100,000Expected 21/9/2026

Mfr. Part No.
BLM21SN300SN1D

Mouser Part No
81-BLM21SN300SN1D

Murata Electronics

Ferrite Beads 30 OHM 10% Alternate Sizing Guide Below

Learn More

Datasheet

141,424In Stock

100,000Expected 21/9/2026

Cut Tape

HK$1.64

HK$1.17

HK$1.02

HK$0.912

View

Reel

HK$0.395

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM21_xN

Ferrite Chip Beads

SMD/SMT

0805 (2012 metric)

30 Ohms

8.5 A

25 %

4 mOhms

- 55 C

+ 125 C

2 mm

1.25 mm

0.85 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM21SP102SN1D
Murata Electronics
1: HK$2.55
162,135In Stock

Mfr. Part No.
BLM21SP102SN1D

Mouser Part No
81-BLM21SP102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

Learn More

Datasheet

162,135In Stock

Cut Tape

HK$2.55

HK$1.79

HK$1.56

HK$1.40

View

Reel

HK$0.625

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM21_xN

Ferrite Chip Beads

SMD/SMT

0805 (2012 metric)

1 kOhms

1.6 A

25 %

120 mOhms

- 55 C

+ 125 C

2 mm

1.25 mm

0.85 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 110 OHM Alternate Sizing Guide Below

BLM21SP111SN1D
Murata Electronics
1: HK$2.55
52,868In 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

52,868In Stock

216,000On Order

Cut Tape

HK$2.55

HK$1.79

HK$1.56

HK$1.40

View

Reel

HK$0.625

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM21_xN

Ferrite Chip Beads

SMD/SMT

0805 (2012 metric)

110 Ohms

5 A

25 %

13 mOhms

- 55 C

+ 125 C

2 mm

1.25 mm

0.85 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 330 OHM Alternate Sizing Guide Below

BLM21SP331SN1D
Murata Electronics
1: HK$2.55
40,057In Stock

Mfr. Part No.
BLM21SP331SN1D

Mouser Part No
81-BLM21SP331SN1D

Murata Electronics

Ferrite Beads 330 OHM Alternate Sizing Guide Below

Learn More

Datasheet

40,057In Stock

Cut Tape

HK$2.55

HK$1.79

HK$1.56

HK$1.40

View

Reel

HK$0.625

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM21_xN

Ferrite Chip Beads

SMD/SMT

0805 (2012 metric)

330 Ohms

2.8 A

25 %

40 mOhms

- 55 C

+ 125 C

2 mm

1.25 mm

0.85 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM21SP601SN1D
Murata Electronics
1: HK$2.55
474,827In Stock

Mfr. Part No.
BLM21SP601SN1D

Mouser Part No
81-BLM21SP601SN1D

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

Learn More

Datasheet

474,827In Stock

Cut Tape

HK$2.55

HK$1.79

HK$1.56

HK$1.40

View

Reel

HK$0.625

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM21_xN

Ferrite Chip Beads

SMD/SMT

0805 (2012 metric)

600 Ohms

2.3 A

25 %

60 mOhms

- 55 C

+ 125 C

2 mm

1.25 mm

0.85 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below

BLM31KN102SN1L
Murata Electronics
1: HK$3.29
84,889In Stock
87,500Expected 26/10/2026

Mfr. Part No.
BLM31KN102SN1L

Mouser Part No
81-BLM31KN102SN1L

Murata Electronics

Ferrite Beads 1000 OHM 2A Alternate Sizing Guide Below

Learn More

Datasheet

84,889In Stock

87,500Expected 26/10/2026

Cut Tape

HK$3.29

HK$2.28

HK$1.98

HK$1.77

Reel

HK$0.954

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

BLM31KN_SN

Ferrite Chip Beads

SMD/SMT

1206 (3216 metric)

1 kOhms

2 A

25 %

75 mOhms

- 55 C

+ 125 C

3.2 mm

1.6 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 470 OHM Alternate Sizing Guide Below

BLM31KN471SN1L
Murata Electronics
1: HK$3.29
38,681In Stock
175,000On Order

Mfr. Part No.
BLM31KN471SN1L

Mouser Part No
81-BLM31KN471SN1L

Murata Electronics

Ferrite Beads 470 OHM Alternate Sizing Guide Below

Learn More

Datasheet

38,681In Stock

175,000On Order

Cut Tape

HK$3.29

HK$2.28

HK$1.98

HK$1.77

Reel

HK$0.921

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

BLM31KN_SN

Ferrite Chip Beads

SMD/SMT

1206 (3216 metric)

470 Ohms

4 A

25 %

20 mOhms

- 55 C

+ 125 C

3.2 mm

1.6 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below

BLM31SN500SN1L
Murata Electronics
1: HK$3.29
83,380In Stock
225,000On Order

Mfr. Part No.
BLM31SN500SN1L

Mouser Part No
81-BLM31SN500SN1L

Murata Electronics

Ferrite Beads 50 OHM 12A Alternate Sizing Guide Below

Learn More

Datasheet

83,380In Stock

225,000On Order

Cut Tape

HK$3.29

HK$2.29

HK$1.99

HK$1.78

View

Reel

HK$0.83

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

BLM31_SN

Ferrite Beads

SMD/SMT

1206 (3216 metric)

50 Ohms

12 A

25 %

1.6 mOhms

- 55 C

+ 125 C

3.2 mm

1.6 mm

1.1 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 120 OHM Alternate Sizing Guide Below

BLM15KD121SN1D
Murata Electronics
1: HK$0.822
34,857In Stock

Mfr. Part No.
BLM15KD121SN1D

Mouser Part No
81-BLM15KD121SN1D

Murata Electronics

Ferrite Beads 120 OHM Alternate Sizing Guide Below

Learn More

Datasheet

34,857In Stock

Cut Tape

HK$0.822

HK$0.559

HK$0.436

HK$0.395

View

Reel

HK$0.164

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

BLM15_SN

Ferrite Chip Beads

SMD/SMT

0402 (1005 metric)

120 Ohms

1.5 A

25 %

70 mOhms

- 55 C

+ 125 C

1 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 20 OHM Alternate Sizing Guide Below

BLM15KD200SN1D
Murata Electronics
1: HK$0.822
20,003In Stock
90,000Expected 11/8/2026

Mfr. Part No.
BLM15KD200SN1D

Mouser Part No
81-BLM15KD200SN1D

Murata Electronics

Ferrite Beads 20 OHM Alternate Sizing Guide Below

Learn More

Datasheet

20,003In Stock

90,000Expected 11/8/2026

Cut Tape

HK$0.822

HK$0.559

HK$0.436

HK$0.395

View

Reel

HK$0.164

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

BLM15_SN

Ferrite Beads

SMD/SMT

0402 (1005 metric)

20 Ohms

3.8 A

25 %

11 mOhms

- 55 C

+ 125 C

1 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below

BLM18KG331SN1D
Murata Electronics
1: HK$0.822
268In Stock

Mfr. Part No.
BLM18KG331SN1D

Mouser Part No
81-BLM18KG331SN1D

Murata Electronics

Ferrite Beads 330 OHM 25% Alternate Sizing Guide Below

Learn More

Datasheet

268In Stock

Cut Tape

HK$0.822

HK$0.526

HK$0.411

HK$0.37

Reel

HK$0.173

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM18_xN

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

330 Ohms

1.7 A

25 %

80 mOhms

- 55 C

+ 125 C

1.6 mm

0.8 mm

Reel, Cut Tape, MouseReel

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

BLM18SP101SN1D
Murata Electronics
1: HK$2.06
19,818In Stock
12,000Expected 24/9/2026

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

19,818In Stock

12,000Expected 24/9/2026

Cut Tape

HK$2.06

HK$1.45

HK$1.26

HK$1.13

View

Reel

HK$0.485

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM18_xN

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

100 Ohms

3.7 A

25 %

26 mOhms

- 55 C

+ 125 C

1.6 mm

0.8 mm

0.6 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

BLM18SP102SN1D
Murata Electronics
1: HK$2.06
7,401In Stock
28,000Expected 29/10/2026

Mfr. Part No.
BLM18SP102SN1D

Mouser Part No
81-BLM18SP102SN1D

Murata Electronics

Ferrite Beads 1000 OHM Alternate Sizing Guide Below

Learn More

Datasheet

7,401In Stock

28,000Expected 29/10/2026

Cut Tape

HK$2.06

HK$1.45

HK$1.26

HK$1.13

View

Reel

HK$0.485

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM18_xN

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

1 kOhms

1.2 A

25 %

222 mOhms

- 55 C

+ 125 C

1.6 mm

0.8 mm

0.6 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 600 OHM Alternate Sizing Guide Below

BLM18SP601SN1D
Murata Electronics
1: HK$2.06
7,973In Stock
16,000Expected 21/9/2026

Mfr. Part No.
BLM18SP601SN1D

Mouser Part No
81-BLM18SP601SN1D

Murata Electronics

Ferrite Beads 600 OHM Alternate Sizing Guide Below

Learn More

Datasheet

7,973In Stock

16,000Expected 21/9/2026

Cut Tape

HK$2.06

HK$1.41

HK$1.23

HK$1.10

View

Reel

HK$0.51

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM18_xN

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

600 Ohms

1.5 A

25 %

168 mOhms

- 55 C

+ 125 C

1.6 mm

0.8 mm

0.6 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 470 OHM Alternate Sizing Guide Below

BLM21SP471SN1D
Murata Electronics
1: HK$2.55
5,550In Stock
44,000On Order

Mfr. Part No.
BLM21SP471SN1D

Mouser Part No
81-BLM21SP471SN1D

Murata Electronics

Ferrite Beads 470 OHM Alternate Sizing Guide Below

Learn More

Datasheet

5,550In Stock

44,000On Order

Cut Tape

HK$2.55

HK$1.79

HK$1.56

HK$1.40

View

Reel

HK$0.625

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM21_xN

Ferrite Chip Beads

SMD/SMT

0805 (2012 metric)

470 Ohms

2.5 A

25 %

50 mOhms

- 55 C

+ 125 C

2 mm

1.25 mm

0.85 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 70 OHM Alternate Sizing Guide Below

BLM21SP700SN1D
Murata Electronics
1: HK$2.55
13,082In Stock
12,000Expected 14/12/2026

Mfr. Part No.
BLM21SP700SN1D

Mouser Part No
81-BLM21SP700SN1D

Murata Electronics

Ferrite Beads 70 OHM Alternate Sizing Guide Below

Learn More

Datasheet

13,082In Stock

12,000Expected 14/12/2026

Cut Tape

HK$2.55

HK$1.79

HK$1.56

HK$1.40

View

Reel

HK$0.625

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

BLM21_xN

Ferrite Chip Beads

SMD/SMT

0805 (2012 metric)

70 Ohms

6 A

25 %

9 mOhms

- 55 C

+ 125 C

2 mm

1.25 mm

0.85 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 270 OHM 4.5A Alternate Sizing Guide Below

BLM31KN271SN1L
Murata Electronics
1: HK$3.12
388In Stock
297,500On 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

388In Stock

297,500On Order

Cut Tape

HK$3.12

HK$2.21

HK$1.92

HK$1.72

Reel

HK$0.797

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

BLM31KN_SN

Ferrite Chip Beads

SMD/SMT

1206 (3216 metric)

270 Ohms

4.5 A

25 %

16 mOhms

- 55 C

+ 125 C

3.2 mm

1.6 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 800 OHM 2.5A Alternate Sizing Guide Below

BLM31KN801SN1L
Murata Electronics
1: HK$3.12
1,198In Stock
47,500On 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

1,198In Stock

47,500On Order

Cut Tape

HK$3.12

HK$2.28

HK$1.98

HK$1.77

Reel

HK$0.954

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

BLM31KN_SN

Ferrite Chip Beads

SMD/SMT

1206 (3216 metric)

800 Ohms

2.5 A

25 %

50 mOhms

- 55 C

+ 125 C

3.2 mm

1.6 mm

Reel, Cut Tape, MouseReel

Power Supply Line Noise Suppression for Home Audio

Customer Service Office

Company

Resources

Support

1 A
1.2 A
1.3 A
1.5 A
1.6 A
1.7 A
2 A
2.2 A
2.3 A
2.5 A
2.8 A
2.9 A
3.1 A
3.7 A
3.8 A
4 A
4.5 A
5 A
6 A
8.5 A

1.6 mOhms
4 mOhms
8 mOhms
9 mOhms
10 mOhms
11 mOhms
13 mOhms
16 mOhms
17 mOhms
20 mOhms
26 mOhms
30 mOhms
38 mOhms
40 mOhms
45 mOhms
48 mOhms
50 mOhms
60 mOhms
70 mOhms
75 mOhms