KNF21050-W3 KYOCERA, KNF21050-W3 Datasheet - Page 2

• Manufacturer Part Number: KNF21050-W3
• Description: EMI FILTER
• Manufacturer: KYOCERA

<Impedance Matching Free>
<No Ringing>
Excellent Impedance Matching
Recommended Land Pattern
Test Circuit
• Stable attenuation against impedance change
• Good impedance matching without ringing
Test circuit
• Wide attenuation up to high frequency range
KNF21 3.20 2.30 1.00 1.20 0.80 0.40 0.60 0.3-0.4 2.00
on distortion even at the time of IC ON/OFF
and pattern layout change
KNF series
Output waveform
without distortion
T
LVC74
25MHz
25MHz
LVC74
EMI Filters
KNF Series
Resist
W
filter
filter
R
Q
P
C
T
Test point
Test point
50mm
C
R
Through Hole
D
LVC04
P
Q
Conductor
Resist
Wide Attenuation Bandwidth
Output Waveform (Clock frequency 25MHz)
S
LC filter
Output waveform
KNF21100
300
1M
R
120
100
80
60
40
D
25
125
(Unit : mm)
225
U
325
- 18 -
Frequency(MHz)
Original
425
Packaging Specification (Fig.1)
• Taping (3,000/reel)
Filter passed
525
LC filter
625
725
825
925
No filter
Output waveform
LC Filter (T-Type)
Taping Direction(W)
4.0
120
100
80
60
40
25
Direction of Feed
W(Standard)
125
225
Original
325
KNF21100
Frequency(MHz)
425
525
Filter passed
625
725
825
(Unit : mm)
925