2

Data Sheet

!Note:

1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our

products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.

2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product

specifications or transact the approval sheet for product specifications before ordering.

http://www.murata.com/

2

Noise Suppression Products/EMI Suppression Filters > EMIFIL

r (Inductor type) > Chip Ferrite Bead

2011.11.2

oThis data sheet is applied for CHIP FERRITE BEAD used for General Electronics equipment for your design.

Continued from the preceding page.

Part Number

Impedance

(at 100MHz/20°C)

Impedance

(at 1GHz/20°C)

Rated Current

DC Resistance

Operating

Temperature Range

BLM21BB221SN1

p

220ohm ±25%

-

500mA

0.26ohm max.

-55 to +125°C

BLM21BB331SN1

p

330ohm ±25%

-

400mA

0.33ohm max.

-55 to +125°C

BLM21BB471SN1

p

470ohm ±25%

-

400mA

0.40ohm max.

-55 to +125°C

Number of Circuits: 1

c Impedance-Frequency Characteristics (Main Items)

BLM21BD Series

Frequency (MHz)

1

10

100

1000

3000

3000

600

1200

1800

2400

0

BLM21BD331SN1

BLM21BD471SN1

BLM21BD221SN1

BLM21BD152SN1

BLM21BD151SN1

BLM21BD121SN1

BLM21BD601SN1

BLM21BD222TN1

BLM21BD102SN1

BLM21BD751SN1

BLM21BD272SN1

BLM21BD222SN1

BLM21BD182SN1

BLM21BD421SN1

c Impedance-Frequency Characteristics (Main Items)

BLM21BB Series

Frequency (MHz)

1

10

100

1000

3000

2000

1200

1600

800

400

0

BLM21BB201SN1

BLM21BB750SN1

BLM21BB151SN1

BLM21BB121SN1

BLM21BB471SN1

BLM21BB600SN1

BLM21BB331SN1

BLM21BB221SN1

BLM21BB050SN1

c Impedance-Frequency Characteristics

BLM21BD121SN1

1

10

100

1000

3000

Frequency (MHz)

300

180

60

240

120

0

R

X

Z

c Impedance-Frequency Characteristics

BLM21BD151SN1

1

10

100

1000

3000

Frequency (MHz)

360

60

120

180

240

300

0

R

X

Z

Continued on the following page.