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Crystal filters
Crystal filters - overview
Monolithic filters
10.7 MHz filters
21.4 MHz filters
High frequency filters
Surface mount packages
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Monolithic crystal filters (MCF) 21.4 MHz

International Crystal Manufacturing (ICM) offers a wide selection of 21.4 MHz monolithic crystal filters for use in wireless and telecommunications applications. ICM filters offer excellent features such as sharp cut off characteristics, low loss and high stability over a wide temperature range which are superior to LC filters and ceramic filters.

To view details about our 21.4 MHz monolithic crystal filters, please select one of the links below:

12.5 kHz Channel Spacing

Model No. Nominal
Frequency
(MHz)
Pole Passband Attenuation
Band
Ripple Max.
(dB)
Loss Max.
(dB)
Attenuation
Guaranteed
Terminating Impedance
(ohm//pF)
Operating temperature
(C)
Package
Style
(dB) (kHz) (dB) (kHz) (dB) (Fo~±kHz)
21M7A 21.400
2 3 ±3.75 20
±18.0 0.50 1.50 35
50
+350~+1000
-200~-1000
850//6.0 -20~+70 HC-45
21M7B 21.400
4 3 ±3.75 40
±14.0 1.00 2.50 65
80
+350~+1000
-200~-1000
850//5.0 -20~+70 HC-45x2
21M7C 21.400
6 3 ±3.75 65 ±12.5 2.00 3.00 65
±12.5~±300 850//5.0 -20~+70 SF 103
21M7D 21.400
8 3 ±3.75 90
±12.5 2.00 4.00 90
±12.5~±300 850//5.0
-20~+70 SF 104

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20 kHz Channel Spacing

Model No. Nominal
Frequency
(MHz)
Pole Passband Attenuation
Band
Ripple Max.
(dB)
Loss Max.
(dB)
Attenuation
Guaranteed
Terminating Impedance
(ohm//pF)
Operating temperature
(C)
Package
Style
(dB) (kHz) (dB) (kHz) (dB) (Fo~±kHz)
21M12A 21.400
2 3 ±6.0 20
±25.0 0.50 1.50 35
50
+350~+1000
-200~-1000
1.2K//3.0 -20~+70 HC-45
21M12B 21.400
4 3 ±6.0 40
±20.0 1.00 2.50 65
80
+350~+1000
-200~-1000
1.2K//2.5 -20~+70 HC-45x2
21M12C 21.400
6 3 ±6.0 65 ±20.0 2.00 3.50 65
±20~±300 1.2K//2.5 -20~+70 SF 103
21M12D 21.400
8 6 ±6.0 90
±20.0 2.00 3.00 90
±20~±300 1.2K//2.5
-20~+70 SF 104

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25 kHz Channel Spacing

Model No. Nominal
Frequency
(MHz)
Pole Passband Attenuation
Band
Ripple Max.
(dB)
Loss Max.
(dB)
Attenuation
Guaranteed
Terminating Impedance
(ohm//pF)
Operating temperature
(C)
Package
Style
(dB) (kHz) (dB) (kHz) (dB) (Fo~±kHz)
21M15A 21.400
2 3 ±7.50 18
±25.0 0.50 1.50 35
50
+350~+1000
-250~-1000
1.5K//2.0 -20~+70 HC-45
21M15B 21.400
4 3 ±7.50 40
±25.0 1.00 2.50 65
80
+300~+1000
-200~-1000
1.5K//2.0 -20~+70 HC-45x2
21M15C 21.400
6 3 ±7.50 65 ±25.0 2.00 2.50 65
±25~±300 1.5K//2.0 -20~+70 SF 103
21M15D 21.400
8 6 ±7.50 90
±25.0 2.00 3.50 90
±25~±300 1.5K//2.0
-20~+70 SF 104

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50 kHz Channel Spacing

Model No. Nominal
Frequency
(MHz)
Pole Passband Attenuation
Band
Ripple Max.
(dB)
Loss Max.
(dB)
Attenuation
Guaranteed
Terminating Impedance
(ohm//pF)
Operating temperature
(C)
Package
Style
(dB) (kHz) (dB) (kHz) (dB) (Fo~±kHz)
21M30A 21.400
2 3 ±15.0 15
±45.0 0.50 1.50 35
40
+350~+1000
-200~-1000
3.0K//0.5 -20~+70 HC-45
21M30B 21.400
4 3 ±15.0 40
±50.0 1.00 2.50 65
80
+350~+1000
-200~-1000
3.0K//0.5 -20~+70 HC-45x2
21M30C 21.400
6 3 ±15.0 65 ±50.0 2.00 2.50 60
±50~±300 2.2K//0.5 -20~+70 SF 103
21M30D 21.400
8 6 ±15.0 80
±50.0 2.00 3.00 80
±50~±300 2.2K//0.5
-20~+70 SF 104

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Call us today at 1-800-725-1426, fill out our contact form, email us at icmweb@icmfg.com or request an online quote for International Crystal Manufacturing radio frequency control devices – quartz crystals, oscillators, QCM crystals, filters, TCXOs / VCTCXOs, and precision crystals.

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Quartz Crystals Precision Telemetry Crystal Products
International Crystal Manufacturing
10 North Lee Avenue Oklahoma City, OK 73102
Toll Free Phone: 1-800-725-1426 Toll Free Fax: 1-800-322-9426
Phone: 1-405-236-3741 Fax: 1-405-235-1904
Email: icmweb@icmfg.com

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