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Oscillators
Crystal Filters
10.7MHz MCF Crystal
Filters
21.4 MHz MCF Crystal
Filters
10.7 MHz and 21.4 MHz
MCF Filters with
Impedance Transformation
45 MHz Crystal Filters
SSB Crystal Filters
Custom Crystal Filters up
to 18 MHz
Custom Crystal Filters 18
to 45 MHz
Custom Crystal Filters 45
to 150 MHz
Standard Crystal Filter
Package Sizes
LC Filters
Cavity Filters
Duplexer Filters
Coil Assemblies
B. 20 KHz Channel Spacing
XF21U12B
XF21U12C
XF21U12D
4
6
8
3
3
3
+/- 6
+/- 6
+/-6
40
45
60
+/- 20
+/-14
+/-14
65
90
+/-20
+/-20
1.0
2.0
2.0
2.5
3.0
3.5
65
80
90
1200 // 2.5
1200 // 2.5
1200 // 2.5
FK-02 X 2
FK-05
FK-05
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Crystal Filters
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21.4 MHz MCF Crystal Filters
21.4 MHz MCF Crystal Filters:
Model
No
Poles
PASS BAND
db
KHz
db
STOPBAND ATTENUATION
KHz
db
KHz
Ripple
max
dB
Loss
max
dB
Ult. Rej.
max
dB
TERMINAL
IMPEDANCE
Ohms// pf
CASE
TYPE
A. 12.5 KHz Channel Spacing
XF21U08B
4
3
+/- 3.75
XF21U08C
XF21U08D
6
8
3
3
+/- 3.75
+/- 3.75
40
45
60
+/- 14
+/-8.75
+/-8.75
65
90
+/-12.5
+/-12.5
1.0
2.0
2.0
2.5
3.5
4.0
60
80
90
850 // 6.0
850 // 6.0
80 // 6.0
FK-02 X 2
FK-05
FK-05
C. 25 KH z Channel Spacing
XF21U15B
XF21U15C
XF21U15D
4
6
8
3
3
3
+/- 7.5
+/- 7.5
+/- 7.5
40
45
60
+/- 25
+/-17.5
+/-15
65
90
+/-25
+/-25
1.0
2.0
2.0
2.5
2.5
3.0
65
80
90
1600 // 2.0
1600 // 2.0
1600 // 2.0
FK-02 X 2
FK-05
FK-05
D. 35 KH z Channel Spacing
Search
XF21U20B
XF21U20C
XF21U20D
4
6
8
3
3
3
+/- 10
+/- 10
+/- 10
40
45
60
+/- 35
+/-24.5
+/-24.5
60
90
+/-35
+/-35
1.0
2.0
2.0
2.5
3.0
3.5
50
60
80
1800 // 1.5
1800 // 1.5
1800 // 1.5
FK-02 X 2
FK-05
FK-05
E. 50 KH z Channel Spacing
XF21U30B
XF21U30C
XF21U30D
4
6
8
3
3
3
+/- 15
+/- 15
+/- 15
40
45
65
+/- 50
+/-35
+/-35
80
+/-50
1.0
2.0
2.0
2.0
2.5
3.5
50
60
80
2300 // 1.0
2300 // 1.0
2300 // 1.0
FK-02 X 2
FK-05
FK-05
Notes:
*Operating Temperature -20 C - + 70 C
*Other Filter packages available on Request
To download a copy of this table click
here!
© 2019 - OPT Hellas SA
OPT Hellas SA, 101, Kon. Paleologou Str., GR-190 04, Spata, Athens, Greece Tel: +30-210-6025072 , Fax:+30-210-6025534
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