BL02RN1-R62 datasheet(15/22 Pages) MURATA

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s Suppression of DC side ripple of the switching

power supply

s When BNX002 is not used

(High frequency noise,

max. 0.5V, can be seen.

)

+5.0V

50 s/DIV

0.2V/DIV

s When BNX002 is used

(Noise can be almost

eliminated by BNX002.

)

+5.0V

50 s/DIV

0.2V/DIV

CG01-I

261

EMI LEADED FILTERS

EMI SUPPRESSION FILTERS

BLOCK FILTERS

BNX002/003/005 Series

USING THE BNX SERIES EFFECTIVELY

The block type filter effectively prevents unwanted reflections

and external noise from entering the equipment circuitry and

power lines by grounding all the high frequency components

which make up the noise.

To maximize performance, proper grounding is required. To

insure proper grounding, observe the following points:

s When designing the PC board, use all the available

grounding terminals and arrange the circuit to maximize

the area of the ground pattern.

s Minimize the distance between the PC board ground and

the filter’s grounding plate.

s Insert the filter into the PC board up to the terminal roots.

s Do not externally connect PSG to CG.

BNX003-01

BNX002-01

BNX005-01

TYPICAL INSERTION LOSS CHARACTERISTICS

APPLICATION

Switching

Power Supply

BNX002-01

+5V

0.001

0.01

0.1

100

1000

Frequency (MHz)

100

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