• 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 |
| 21MQ15A |
|
2 |
3 ± 7.5 |
18 ± 25 |
70 -910 |
0.5 |
1.5 |
1.5K // 2.5 |
| 21.7 |
217MQ15A |
|
2 |
3 ± 7.5 |
18 ± 28 |
70 -910 |
1.0 |
2.0 |
1.5K // 2.0 |
| 45 |
45MQ15A |
|
2 |
3 ± 7.5 |
15 ± 25 |
70 -910 |
1.0 |
2.0 |
560 // 6.0 |
| 45MQ30A |
|
2 |
3 ± 15 |
15 ± 60 |
70 -910 |
1.0 |
2.0 |
1.2K // 1.8 |
MCF Thru-Hole
10.7 MHz
21.4 MHz
45 MHz Fundamental Mode
45 MHz Third Overtone Mode
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 |
10M07A |
2 |
3 ±3.75 |
20 ±18 |
- - |
0.5 |
1.5 |
35 +300 to +100050 -200 to -1000 |
1.8K // 5.0 |
HC49T |
| 10M07B |
4 |
3 ±3.75 |
40 ±14 |
- - |
1.0 |
2.5 |
65 +300 to +100080 -200 to -1000 |
1.8K // 4.5Zc: 11.0 pF |
HC49Tx2
(a pair) |
| 10M07C |
6 |
3 ±3.75 |
45 ±8.75 |
65 ±12.5 |
2.0 |
3.5 |
65 12.5 to 300 |
1.8K // 3.5 |
L-1 |
| 10M07D |
8 |
3 ±3.75 |
65 ±8.75 |
90 ±12.5 |
2.0 |
4.0 |
90 12.5 to 300 |
1.8K // 3.5 |
L-2 |
| 20 |
10M09A |
2 |
3 ±6.0 |
18 ±23 |
- - |
0.5 |
2.0 |
35 +300 to +1000
40 -200 to -1000 |
2.5K // 2.5 |
HC49T |
| 10M09B |
4 |
3 ±6.0 |
40 ±20 |
- - |
1.0 |
2.5 |
65 +300 to +1000
80 -200 to -1000 |
2.5K // 1.5
Zc: 6.0 pF |
HC49Tx2
(a pair) |
| 10M09C |
6 |
3 ±6.0 |
45 ±14 |
60 ±20 |
2.0 |
3.0 |
65 20 to 300 |
2.8K // 1.0 |
L-1 |
| 10M09D |
8 |
3 ±6.0 |
65 ±14 |
90 ±20 |
2.0 |
4.0 |
90 20 to 300 |
2.8K // 1.0 |
L-2 |
| 25 |
10M15A |
2 |
3 ±7.5 |
18 ±25 |
- - |
0.5 |
2.0 |
35 +300 to +1000
40 -200 to -1000 |
3.0K // 2.0 |
HC49T |
| 10M15B |
4 |
3 ±7.5 |
40 ±25 |
- - |
1.0 |
2.5 |
55 +300 to +1000
80 -200 to -1000 |
3.0K // 2.0
Zc: 5.0 pF |
HC49Tx2
(a pair) |
| 10M15C |
6 |
3 ±7.5 |
45 ±17.5 |
65 ±25 |
2.0 |
3.0 |
65 25 to 300 |
3.0K // 1.5 |
L-1 |
| 10M15D |
8 |
3 ±7.5 |
70 ±17.5 |
90 ±25 |
2.0 |
4.0 |
90 25 to 300 |
3.0K // 1.5 |
L-2 |
| 10M15E |
10 |
3 ±7.5 |
75 ±15 |
90 ±20 |
2.0 |
4.5 |
90 20 to 300 |
3.0K // 1.5 |
L-3 |
| 50 |
10M30A |
2 |
3 ±15 |
15 ±50 |
- - |
0.5 |
1.5 |
30 +300 to +1000
40 -300 to -1000 |
5.0K // 0 |
HC49T |
| 10M30B |
4 |
3 ±15 |
30 ±40 |
- - |
1.0 |
2.5 |
30 40 to 300 |
5.5K // -1.0
Zc: 0.5 pF |
HC49Tx2
(a pair) |
| 10M30C |
6 |
3 ±15 |
60 ±45 |
- - |
2.0 |
3.0 |
60 45 to 300 |
5.5K // -1.0 |
L-1 |
| 10M30D |
8 |
3 ±15 |
60 ±30 |
80 ±40 |
2.0 |
3.5 |
90 50 to 300 |
5.5K // -1.0 |
L-2 |
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 |
45M7.5AU1 |
2 |
3 ±3.75 |
10 ±12.5 |
1.0 |
2.0 |
65 -910 |
200 // 4 |
UM-1 |
| 45M7.5BU1 |
4 |
3 ±3.75 |
30 ±12.5 |
1.0 |
4.0 |
90 ±900 ~ ±1000 |
350 // 6.5
Zc: 18 pF |
UM-1x2
(a pair) |
| 25 |
45M15AU1 |
2 |
3 ±7.5 |
15 ±25 |
1.0 |
2.0 |
35 +900 ~ +1000
65 -900 ~ -1000 |
650 // 3.0 |
UM-1 |
| 45M15BU1 |
4 |
3 ±7.5 |
30 ±25 |
1.0 |
3.0 |
90 ±900 ~ ± 1000 |
650 // 3.0
Zc: 9 pF |
UM-1x2
(a pair) |
| 50 |
45M30AU1 |
2 |
3 ±15 |
15 ±60 |
1.5 |
2.5 |
35 +900 ~ +1000
65 -900 ~ -1000 |
1200 // 0 |
UM-1 |
| 45M30BU1 |
4 |
3 ±15 |
30 ±50 |
1.0 |
3.0 |
80 ±900 ~ ±1000 |
1200 // 0.7
Zc: 3.5 pF |
UM-1x2
(a pair) |
| 12.5 |
45M7.5AU5 |
2 |
3 ±3.75 |
10 ±12.5 |
1.0 |
2.0 |
65 -910 |
200 // 4 |
UM-5 |
| 45M7.5BU5 |
4 |
3 ±3.75 |
30 ±12.5 |
1.0 |
4.0 |
90 ±900 ~ ±1000 |
350 // 6.5
Zc: 18 pF |
UM-5x2
(a pair) |
| 25 |
45M15AU5 |
2 |
3 ±7.5 |
15 ±25 |
1.0 |
2.0 |
35 900 ~ +1000
65 -900 ~ -1000 |
650 // 3.0 |
UM-5 |
| 45M15BU5 |
4 |
3 ±7.5 |
30 ±25 |
1.0 |
3.0 |
90 ±900 ~ ± 1000 |
650 // 3.0
Zc: 9 pF |
UM-5x2
(a pair) |
| 50 |
45M30AU5 |
2 |
3 ±15 |
15 ±60 |
1.5 |
2.5 |
35 +900 ~ +1000
65 -900 ~ -1000 |
1200 // 0 |
UM-5 |
| 45M30BU5 |
4 |
3 ±15 |
30 ±50 |
1.0 |
3.0 |
80 ±900 ~ ±1000 |
1200 // 0.7
Zc: 3.5 pF |
UM-5x2
(a pair) |
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. |
