Apart from our finished quartz frequency control products, we manufacture a wide range of crystals of various designs for frequencies ranging from 4 kHz to 200 MHz. For these crystals we employ quartz elements manufactured along the most commonly used cuts. Morion, Inc. offers the crystals in standard HC-52, HC-49 and HC-33 packages.
Please refer to the following table:
| Crystal type |
Package type |
Frequency range (overtone) |
Frequency tolerance, x10-6 |
Motional resistance, Ohm |
| QR-MV-379 |
НС-49 |
420....550 kHz (1)
|
±30
|
< 3000 |
QR-MV-379
|
|
4000... 45000 kHz (1) 20 ...90 MHz (3) 60 ...200 MHz (5)
|
±3...±30
|
20...100 |
|
|
5000 ...45000 kHz (1) 20...140 MHz (3) 60 ...200 MHz (5)
|
±3...±30 |
30...150 |
|
|
750...8000 kHz (1)
|
±10...±20
|
30...600 |
|
1000...8000 kHz (1)
|
| QR-MV-432 |
|
10000...25000 kHz (1)
|
±15...±50
|
< 25 |
For frequency tolerance specification please refer the following table:
| Frequency accuracy, x10-6 |
±0,5 |
±1 |
±3 |
±5 |
±10 |
±15 |
±20 |
±30 |
±50 |
±75 |
±100 |
| Designation |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
For frequency stability versus operating temperature changes specification please refer the following table:
| Temperature range,°С |
Frequency stability, x10-6 |
| ±1.5 |
±2 |
±3 |
±5 |
±7,5 |
±10 |
±15 |
±20 |
±25 |
±30 |
±40 |
±50 |
| G |
H |
I |
K |
L |
M |
N |
P |
R |
S |
T |
U |
| A |
-10... 60 |
NA |
NA |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
| B |
-30... 60 |
NA |
NA |
NA |
NA |
C |
A |
A |
A |
A |
A |
A |
A |
| C |
-40... 70 |
NA |
NA |
NA |
NA |
NA |
C |
A |
A |
A |
A |
A |
A |
| D |
-60... 85 |
NA |
NA |
NA |
NA |
NA |
NA |
NA |
A |
A |
A |
A |
A |
| E |
75... 85 |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
| F |
65... 75 |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
| G |
55... 65 |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A - available, NA - not available, C - consult factory.
Ordering guide: QR-MV-379-HC-49-SMD-5AI-38.4625M, where:
• QR-MV-379: crystal type;
• HC-49-SMD: package type (HC-49, HC-49-SMD, HC-52, HC-52-SMD, HC-49/S, HC-33);
• 5: designation of frequency tolerance;
• A: designation of temperature range;
• I: designation of frequency stability vs. temperature range;
• 38.4625M: designation of output frequency.
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