Simple Packaged Crystal Filters

21.4 MHz

Features

 
  • With impedance transformation
  • Excellent temperature characteristics
  • Excellent attenuation guaranteed
  • Low IM distortion

 

Specification

Nominal frequency
Operating temperature 

21.400 MHz
-20° ~ +70° C

 

Series
No.		 Pole Pass Band Attenuation
Band		 Ripplemax. Lossmax. Attenuation
Guaranteed		 Terminal
Impedance		 Case
Code

.

.

 dB kHz dB kHz dB kHz dB dB dB fo ~ ± kHz Ohm//pF

.
X21M7D 8 3 ± 3.75 70 ± 9.0 90 ± 12.5 2.0 4.0 90 ± 12.5~ ± 300 910 // 15 FK-10
FK-11
X21M12D 8 3 ± 6.0 70 ± 14.0 90 ± 20.0 2.0 3.5 90 ± 20.0~ ± 300 910 // 15 FK-10
FK-11
X21M15D 8 3 ± 7.5 70 ± 17.5 90 ± 25.0 2.0 3.5 90 ± 25.0~ ± 300 910 // 15 FK-10
FK-11
X21M30D 8 3 ± 15.0 70 ± 35.0 90 ± 50.0 2.0 3.5 90 ± 50.0~ ± 300 910 // 15 FK-10
FK-11
X21M7DA 8 3 ± 3.75 65 ± 9.0 90 ± 12.5 2.0 4.5 90 ± 12.5~ ± 300 470 // 15 FK-12
X21M12DA 8 3 ± 6.0 65 ± 14.0 90 ± 20.0 2.0 4.0 90 ± 20.0~ ± 300 470 // 15 FK-12
X21M15DA 8 3 ± 7.5 65 ± 17.5 90 ± 25.0 2.0 4.0 90 ± 25.0~ ± 300 470 // 15 FK-12
X21M30DA 8 3 ± 15.0 65 ± 35.0 80 ± 50.0 2.0 4.0 80 ± 50.0~ ± 300 470 // 15 FK-12

 

FK-10

FK-11

FK-12

 

Technical guidance

 

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