8

1

• This catalog 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.

BLM18A Series Conductive Glue Applicable Type

s Features

The chip ferrite beads BLM series is designed to

function nearly as a resistor at noise frequencies,

which greatly reduces the possibility of resonance and

leaves signal wave forms undistorted.

BLM series is effective in circuits without stable

ground lines because BLM series does not need a

connection to ground.

BLM_A series generates an impedance from the

relatively low frequencies. Therefore BLM_A series is

effective in noise suppression in a wide frequency

range (30MHz to several hundred MHz).

BLM18A_WH series is designed for conductive glue

mounting method, not for normal soldering method.

Please contact us for applicable mounting method

for BLM18A_WH series.

0.4

±0.2

1.6

±0.15

0.8

±0.15

(in mm)

Part Number

Impedance

(at 100MHz/20

°C)

(ohm)

Rated Current

(mA)

DC Resistance (max.)

(ohm)

Operating

Temperature Range

(

°C)

BLM18AG471WH1

470

±25%

200

0.20

-55 to +150

BLM18AG102WH1

1000

±25%

200

0.70

-55 to +150

s Equivalent Circuit

(Resistance element becomes dominant

at high frequencies.)

s Impedance - Frequency (Typical)

BLM18A Series

Frequency (MHz)

0

300

600

900

1200

1500

1

10

100

1000

BLM18AG102WH1

BLM18AG471WH1

s Impedance - Frequency Characteristics

BLM18AG471WH1

Frequency (MHz)

0

200

400

600

1

10

100

1000

Z

X

R

BLM18AG102WH1

Frequency (MHz)

0

300

600

900

1200

1500

1

10

100

1000

Z

X

R

C50E.pdf

Aug.28,2008