NDK NIHON DEMPA KOGYO CO.,LTD.

 

Search within NDK

 

Products Search

Crystal Filters

♦ Crystal Filter can take out only a necessary frequency ingredient and attenuate an unnecessary frequency ingredient.

2Pole MCF

Model Nominal Freq.
(MHz)
Package Size
(mm)
3dB
Passband
Width
Stop
Bandwidth
Insertion
Attenuation
(Insertion Loss)
Terminating
Impedance
R C
L W H (kHz) Min. (kHz) (dB) (dB) Max. (Ω) (pF)
21E7.5AD 21.4 7.0 5.0 1.35 ±3.75 ±12.5 15 2 1500 5
21E15AB 21.4 7.0 5.0 1.35 ±7.5 ±25 15 1.5 1500 1
21E30AD 21.4 7.0 5.0 1.35 ±15 ±50 15 1.5 2500 1.2
21E7.5A 21.7 7.0 5.0 1.35 ±3.75 ±12.5 15 2 850 6
21E15AA 21.7 7.0 5.0 1.35 ±7.5 ±25 15 1.5 1500 1
21E30AF 21.7 7.0 5.0 1.35 ±15 ±50 15 1.5 2000 1.2
45E7.5AB 45 7.0 5.0 1.35 ±3.75 ±25 20 2 200 4
45E15A 45 7.0 5.0 1.35 ±7.5 ±25 13 3 1000 4
45E30AN 45 7.0 5.0 1.35 ±15 ±60 20 2 650 1.5
90E9A 90 7.0 5.0 1.35 ±4 ±50 25 5 200 8

4Pole MCF

Model Nominal Freq.
(MHz)
Package Size
(mm)
3dB
Passband
Width
Stop
Bandwidth
Insertion
Attenuation
(Insertion Loss)
Terminating
Impedance
R C Cc
L W H (kHz) Min. (kHz) (dB) (dB) Max. (Ω) (pF) Cc(pF)
45EE7.5A 45 7.0 5.0 1.35 ±3.75 ±12.5 20 4 570 2.9 11.2
45EE15AA 45 7.0 5.0 1.35 ±7.5 ±22 25 3 600 2.0 10.0
73EE15AA 73.35 7.0 5.0 1.35 ±7.5 ±25 30 5 500 3.5 7.0

4Pole MCF (Built-in coupling capacitor)

Model Nominal Freq.
(MHz)
Package Size
(mm)
3 dB
Passband
Width
Stop
Bandwidth
Insertion
Attenuation
(Insertion Loss)
Terminating
Impedance
R C
L W H (kHz) Min. (kHz) (dB) (dB) Max. (Ω) (pF)
21SC15BB 21.4 11.4 7.0 2.35 ±7.5 ±25 40 3 1500 1.5
45SC7.5BG 45 11.4 7.0 2.35 ±3.75 ±12.5 25 5 350 6
45SC15BE 45 11.4 7.0 2.35 ±7.5 ±25 35 5 650 2
45SC20BB 45 11.4 7.0 2.35 ±10 ±25 25 3 800 1.5
45SC30BD 45 11.4 7.0 2.35 ±15 ±60 40 4 1000 1
70SC20BA 70.05 11.4 7.0 2.35 ±10 ±25 20 4.5 300 2
90SC15B 90 11.4 7.0 2.35 ±7.5 ±25 25 8 310 2

Specifications described in this site are subject to change without notice for improvement.
For more information such as "Reflow Soldering", "Precaution for use", and etc, please refer the Application Note.

 

 

Copyright© 1997- NIHON DEMPA KOGYO CO., LTD.