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EMI Noise Filters

KNF 32 Series

EMI Noise Filters
KNF 32 Series
Features
1) Stable attenuation without ringing with distributed parameter circuit 2) Low profile (1mm, 0.04 in) 1206 type 3) Simple construction
How To Order
KNF 32 050 -W 2
Applications
1) Personal computers, LBP :Clock output (signal) line :I / O line (ex. video signal line such as VGA, XGA) 2) Digital cellular phones 3) Other high speed digital circuits, for example digital TV, VTR
W (STD)
Shape and Dimensions
Equivalent Circuit
Polarity Mark
Input Direction Mark IN 1.0 (0.040) GND OUT
Unit: mm (inch)
Specifications
Performance Characteristics
Attenuation (dB)
200MHz 100MHz
-10 -20 -30 -40 -50 10 20 50 100 200 500 1000 2000 Frequency (MHz)
50MHz 25MHz
Rated voltage: 25VDC Rated current: 200mA Attenuation of cut off frequency: max. -6dB Attenuation characteristics should be standard characteristics of 50 (MIL-STD-220A
EMI Noise Filters
KNF 32 Series
Typical Example of Suppression
KC KNF32050
Spectrum Attenuation (dB)
2V 20ns
Distributed Parameter Circuit
OUTPUT WAVE FORM
ORIGINAL WAVE FORM
100 200 300 400 500 Frequency (MHz)
LC Filter
Spectrum Attenuation (dB)
2V 20ns
Lumped Parameter Circuit
74HC04 FILTER 74HC00
10MHz Measuring Point
100 200 300 400 500 Frequency (MHz)
Land Pattern
Unit: mm (inch)