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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
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Home : Products : Crystal Filters : 21.4 MHz MCF Crystal Filters

21.4 MHz  MCF Crystal Filters:

Model
No

Poles

PASS BAND

STOPBAND ATTENUATION

Ripple
max

Loss
max

Ult. Rej.
max

TERMINAL
IMPEDANCE
Ohms// pf

CASE
TYPE

db

KHz

db

KHz

db

KHz

dB

dB

dB

A. 12.5 KHz Channel Spacing

XF21U08B

XF21U08C

XF21U08D

4

6

8

3

3

3

+/- 3.75

+/- 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

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

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

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!

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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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