Crystal Filters  
TMCF 21.4 MHz Series
Crystal Filter
  
   
TMCF 21.4 Series photo
  

 

Model Channel
Spacing		 Poles Pass
Band
dB  kHz		 Stop Band

Ripple
dB
(max.)

 Loss
dB
(max.)		 Terminating Impedance
Input/Output
ohms//pF 		Coupling
Cap
pF 		Case
Code
dB  kHz dB  kHz
T21U 8A 12.5 kHz 2 3 ± 3.75 20 ± 18.0   0.5 2.0 850 // 6   A-5
T21U 8B 12.5 kHz 4 3 ± 3.75 40 ± 14.0   1.0 2.5 850 // 4 16 A-5 × 2
T21U 8C 12.5 kHz 6 3 ± 3.75 45 ± 8.75 65 ± 12.5 2.0 3.5 850 // 4   D-5
T21U 8D 12.5 kHz 8 3 ± 3.75 60 ± 9.0 90 ± 12.5 2.0 4.0 850 // 4   D-5
T21U 12A 20 kHz 2 3 ± 6.0 20 ± 25.0   0.5 1.5 1200 // 3   A-5
T21U 12B 20 kHz 4 3 ± 6.0 40 ± 20.0   1.0 2.0 1200 // 2 10.5 A-5 × 2
T21U 12C 20 kHz 6 3 ± 6.0 45 ± 14.0 65 ± 20.0 2.0 3.0 1200 // 2   D-5
T21U 12D 20 kHz 8 3 ± 6.0 65 ± 14.0 90 ± 20.0 2.0 3.0 1200 // 2   D-5
T21U 12E 20 kHz 10 3 ± 6.0 75 ± 14.0 90 ± 16.0 2.0 3.5 1200 // 2   E-5
T21U 12CH 20 kHz 6 3 ± 6.0 45 ± 14.0 65 ± 20.0 2.0 3.0 1600 // 1.5   D-5
T21U 12DH 20 kHz 8 3 ± 6.0 65 ± 14.0 90 ± 20.0 2.0 3.0 1600 // 1.5   D-5
T21U 15A 25 kHz 2 3 ± 7.5 18 ± 25.0   0.5 1.5 1600 // 3   A-5
T21U 15B 25 kHz 4 3 ± 7.5 40 ± 25.0   1.0 2.0 1600 // 2 7 A-5 × 2
T21U 15C 25 kHz 6 6 ± 7.5 45 ± 17.5 65 ± 25.0 2.0 2.5 1600 // 2   D-5
T21U 15D 25 kHz 8 6 ± 7.5 65 ± 17.5 90 ± 25.0 2.0 3.5 1600 // 2   D-5
T21U 15E 25 kHz 10 6 ± 7.5 75 ± 16.0 90 ± 18.0 2.0 4.0 1600 // 2   E-5
T21U 30A 50 kHz 2 3 ± 15.0 18 ± 50.0   0.5 1.5 2300 // -1   A-5
T21U 30B 50 kHz 4 3 ± 15.0 40 ± 50.0   1.0 2.0 2300 // 0.5 3 A-5 × 2
T21U 30C 50 kHz 6 3 ± 15.0 45 ± 35.0 65 ± 50.0 2.0 2.5 2300 // 0.5   D-5
T21U 30D 50 kHz 8 3 ± 15.0 65 ± 35.0 80 ± 50.0 2.0 3.0 2300 // 0.5   D-5

 

 

   Case A-5
Case A-5 dimensions

 

 

  
   Case D-5 / E-5
Case C-1/D-1/E-1 dimensions
Case
Code
 A L
D-5 .291 (7.4) .433 (11.0)
E-5 .386 (9.8) .528 (13.4)

 

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