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Monolithic Crystal Filters

• Surface Mount Crystal Filters
• Thru-Hole Crystal Filters

MCF (MONOLITHIC CRYSTAL FILTER) features high quality quartz resonators such as sharp cutoff characteristics, low loss, good inter-modulation and high stability over wide temperature range.

Monolithic Crystal Filter Selection Guide: (229 KB)

To order please specify the "model" shown.


MCF Surface Mount 21.4, 21.7, and 45 MHz

Nominal
Frequency
(MHz)		 Model Photo No.
of
poles		 Pass
Band
Width		 Stop
Band
Width		 Guaranteed
Attenuation		 Ripple Insertion
Loss		 Terminating
Impedance
(ohm // pF)
dB kHz dB kHz dB kHz dB max dB max
21.4
21MQ7.5A 2 3 ± 3.75 20 ± 18 70 -910 1.0 2.0 850 // 6.0

21MQ7.5B

 x 4 3 ± 3.75 40±15 200-100 1.0 3.0 1050//1.5
21MQ15A xx 2 3 ± 7.5 18 ± 25 70 -910 0.5 1.5 1.5K // 2.5
21MQ15B 4 3 ± 7.5 40 ± 25 70 -1000 1.0 2.0 1050 // 1.5
21.7 21.7MQ15A xxxx 2 3 ± 7.5 18 ± 28 70 -910 1.0 2.0 1.5K // 2.0
21.7MQ15B 4 3 ± 7.5 40±25 70 -910 1.0 3.0 1750 // 0.35
45 45MQ15A 2 3 ± 7.5 15 ± 25 70 -910 1.0 2.0 560 // 6.0

45MQ15B

 45MQ15B 4 3±7.5 25±22 80-900 1.0 3.0 800//1.7
45MQ30A 2 3 ± 15 15 ± 60 70 -910 1.0 2.0 1.2K // 1.8


MCF Thru-Hole

10.7 MHz Family

Channel
Spacing
(kHz) 		Model No.
of
Poles 		Pass Band
Width(min.) 		Stop Band Width(max.) Ripple Insertion Loss Guaranteed Attenuation Terminating Impedance (ohms // pF) Package
dB kHz dB kHz dB kHz dB max dB max dB ( fo ± kHz)
12.5 10M07.5A 2 3 ±3.75 20 ±18 - - 0.5 1.5 35 ±300 to ±1000 1.8K // 5.0 49T
10M07.5B 4 3 ±3.75 40 ±14 - - 1.0 2.5 65 ±300 to ±1000 1.8K // 4.5 49Tx2
10M07.5C 6 3 ±3.75 45 ±8.75 65 ±12.5 2.0 3.5 65 ±12.5 to ±300 3.3K // 3.5 49Tx3,L-1
10M07.5D 8 3 ±3.75 65 ±8.75 90 ±12.5 2.0 4.0 90 ±12.5 to ±300 3.3K // 3.5 49Tx4,L-2
20 10M12A 2 3 ±6.0 18 ±23 - - 0.5 2.0 35 ±300 to ±1000
 2.5K // 2.5 49T
10M12B 4 3 ±6.0 40 ±20 - - 1.0 2.5 65 ±300 to ±1000
 2.5K // 1.5
 49Tx2
10M12C 6 3 ±6.0 45 ±14 60 ±20 2.0 4.0 65 ±20 to ±300 2.5K // 1.5 49Tx3,L-1
10M12D 8 3 ±6.0 65 ±14 90 ±20 2.0 2.0 90 ±20 to ±300 2.5K // 1.5 49Tx4,L-2
25 10M15A 2 3 ±7.5 18 ±25 - - 0.5 1.5 35 ±300 to ±1000 3.0K // 2.0 49T
10M15B 4 3 ±7.5 40 ±25 - - 1.0 2.5 55 ±300 to ±1000 3.0K // 1.5
49Tx2
10M15C 6 3 ±7.5 45 ±18 65 ±25 2.0 3.0 65 ±25 to ±300 3.3K // 1.5 49Tx3,L-1
10M15D 8 3 ±7.5 65±18 90 ±25 2.0 4.0 90 ±25 to ±300 3.3K // 1.5 49Tx4,L-2
50 10M30A 2 3 ±15 15 ±50 - - 0.5 1.5 30 ±300 to ±1000 5.0K // 0 49T
10M30B 4 3 ±15 30 ±40 - - 1.0 2.5 30 ±300 to ±1000 5.5K // -1.0 49Tx2
10M30C 6 3 ±15 60 ±45 - - 2.0 3.0 65 ±45 to ±300 5.5K // -1.0 49Tx6,L-1
10M30D 8 3 ±15 60 ±30 80 ±40 2.0 3.5 90 ±50 to ±300 5.5K // -1.0 49Tx4,L-2

If SMD bent lead package required please add MJ at the end of the part number. For example: 10M07AU1-MJ
Zc: Coupling capacitance including stray capacitances

21.4 MHz Family
Channel
Spacing
(kHz) 		Model No.
of
Poles 		Pass Band
Width(min.) 		Stop Band Width(max.) Ripple Insertion Loss Guaranteed Attenuation Terminating Impedance (ohms // pF) Package
dB kHz dB kHz dB kHz dB max dB max dB ( fo ± kHz)
12.5 21M7.5A 2 3 ±3.75 20 ±18 - - 0.5 1.5 35 ±350 to ±1000 850 // 6 U5,U1
21M7.5B 4 3 ±3.75 40 ±15 - - 1.0 2.5 65 ±350 to ±1000 850 // 5 U5x2,U1x2
21M7.5C 6 3 ±3.75 45 ±8.75 - - 2.0 3.0 65 ±12.5 to ±300 850 // 6 U5x3,U1x3,S1
21M7.5D 8 3 ±3.75 65 ±8.75 - - 2.0 4.0 90±12.5 to ±300 850 // 5 U5x4,U1x4,S2
20 21M12A 2 3 ±6 20 ±25 - - 0.5 1.5 35 ±350 to ±1000
 1.2K // 3.0 U5,U1
21M12B 4 3 ±6 40 ±20 - - 1.0 2.5 65 ±350 to ±1000 1.2K // 2.5 U5x2,U1x2
21M12C 6 3 ±6 45 ±15 - - 2.0 3.0 65 ±350 to ±1000 1.2K // 2.5 U5x3,U1x3,S1
21M12D 8 3 ±6 65 ±15 - - 2.0 4.0 90 ±350 to ±1000
 1.2K // 2.5 U5x4,U1x4,S2
25 21M15A 2 3 ±7.5 18 ±25 - - 0.5 1.5 35 ±350 to ±1000 1.5K // 2.0 U5,U1
21M15B 4 3 ±7.5 40 ±25 - - 1.0 2.5 65 ±350 to ±1000
 1.5K // 2.0
 U5x2,U1x2
21M15C 6 3 ±7.5 45 ±25 - - 2.0 3.0 35 ±350 to ±1000
 1.5K // 2.0 U5x3,U1x3,S1
21M15D 8 3 ±7.5 65 ±17.5 90 ±25 2.0 4.0 90 ±25 to ±300 1.5K // 2.0 U5x4,U1x4,S2
50 21M30A 2 3 ±15 15 ±45 - - 0.5 1.5 35 ±300 to ±1000 1.5K // 1.0 U5,U1
21M30B 4 3 ±15 40 ±50 - - 1.0 2.0 65 ±300 to ±1000 2.2K // 0.5 U5x2,U1x2
21M30C 6 3 ±15 45 ±35 65 ±50 2.0 3.0 65 +45 to +300 2.2K // 0.5 U5x3,U1x3,S1
21M30D 8 3 ±15 65±35 90 ±50 2.0 4.0 90 ±50 to ±300 2.2K // 0.5 U5x4,U1x3,S2

If SMD bent lead package required please add MJ at the end of the part number.
For example: 21M07AU1-MJ
Zc: Coupling capacitance including stray capacitances
45 MHz Fundamental Mode Family

Channel
Spacing
(kHz) 		Model No.
of
Poles 		Pass Band
Width(min.) 		Stop Band Width (max.) Ripple Insertion Loss Guaranteed Attenuation Terminating Impedance (ohms // pF) Package
dB kHz dB kHz dB max dB max dB ( fo ± kHz)
12.5 45M7.5A 2 3 ±3.75 10 ±12.5 1.0 2.0 65 ±300 to 1000 200 // 4.0 U5,U1
45M7.5B 4 3 ±3.75 30 ±12.5 1.0 4.0 80 ± 300 to ±1000 350 // 6.5 U5x2,U1x2
25 45M15A 2 3 ±7.5 15 ±25 1.0 2.0 35 ± 300 to ±1000
 650 // 3.0 U5,U1
45M15B 4 3 ±7.5 30 ±25 1.0 3.0

80 ± 300 to ±1000

 650 // 3.0 U5x2,U1x2
50 45M30A 2 3 ±15 15 ±60 1.5 2.5

35 ±900 to ±1000

 1200 // 0 U5,U1
45M30B 4 3 ±15 30 ±50 1.0 3.0 80 ±900 to ±1000 1200 // 0.7

U5x2,U1x2

If SMD bent lead package required please add "MJ" at the end of the part number.
For example: 45M7.5AU1-MJ
45 MHz 3rd Overtone Mode Family

Channel
Spacing
(kHz) 		Model No.
of
Poles 		Pass Band
Width(min.) 		Stop Band Width (max.) Ripple Insertion Loss Guaranteed Attenuation Terminating Impedance (ohms // pF) Package
dB kHz dB kHz dB max dB max dB ( fo ± kHz)
12.5 T45M7.5AU1 2 3 ±3.75 10 ±12.5 1.0 2.0 35 ±910 2000 // -0.4 UM-1
T45M7.5BU1 4 3 ±3.75 30 ±12.5 1.0 4.0 75 ±910 3000 // -0.3
Zc: 0 pF		 UM-1x2
(a pair)
25 T45M15AU1 2 3 ±7.5 15 ±25 1.0 2.0 35 ±910 4000 // -0.7 UM-1
T45M15BU1 4 3 ±7.5 30 ±25 1.0 4.0 75 ±910 4000 // -0.8
Zc: -1.0 pF		 UM-1x2
(a pair)
12.5 T45M7.5AU5 2 3 ±3.75 10 ±12.5 1.0 2.0 35 ±910 2000 // -0.4 UM-5
T45M7.5BU5 4 3 ±3.75 30 ±12.5 1.0 4.0 75 ±910 3000 // -0.3
Zc: 0 pF		 UM-5x2
(a pair)
25 T45M15AU5 2 3 ±7.5 15 ±25 1.0 2.0 35 ±910 4000 // -0.7 UM-5
T45M15BU5 4 3 ±7.5 30 ±25 1.0 4.0 75 ±910 4000 // -0.8
Zc: -1.0 pF		 UM-5x2
(a pair)

If SMD bent lead package required please add MJ at the end of the part number. For example: T45M7.5AU1-MJ Zc: Coupling capacitance including stray capacitances.