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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/

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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.

EMIFIL

BLM21A Series (0805 Size)

c Dimensions

2.0±0.2

0.5±0.2

1.25±0.2

EIA CODE : 0805

(in mm)

: Electrode

c Equivalent Circuit

(Resistance element becomes dominant

at high frequencies.)

c Packaging

Code

Packaging

Minimum Quantity

D

180mm Paper Tape

4000

J

330mm Paper Tape

10000

B

Bulk(Bag)

1000

c Rated Value (p: packaging code)

Part Number

Impedance

(at 100MHz/20°C)

Impedance

(at 1GHz/20°C)

Rated Current

DC Resistance

Operating

Temperature Range

BLM21AG121SN1

p

120ohm ±25%

-

800mA

0.10ohm max.

-55 to +125°C

BLM21AG151SN1

p

150ohm ±25%

-

800mA

0.10ohm max.

-55 to +125°C

BLM21AG221SN1

p

220ohm ±25%

-

800mA

0.13ohm max.

-55 to +125°C

BLM21AG331SN1

p

330ohm ±25%

-

700mA

0.16ohm max.

-55 to +125°C

BLM21AG471SN1

p

470ohm ±25%

-

700mA

0.19ohm max.

-55 to +125°C

BLM21AG601SN1

p

600ohm ±25%

-

600mA

0.21ohm max.

-55 to +125°C

BLM21AG102SN1

p

1000ohm ±25%

-

500mA

0.28ohm max.

-55 to +125°C

Number of Circuits: 1

c Impedance-Frequency Characteristics (Main Items)

Frequency (MHz)

1

10

100

1000

3000

1200

900

600

300

0

BLM21AG331SN1

BLM21AG221SN1

BLM21AG601SN1

BLM21AG471SN1

BLM21AG121SN1

BLM21AG102SN1

BLM21AG151SN1

Continued on the following page.