Crystal 44.645mhz Quartz Crystal Thickness Monitor Quartz Crystals Quartz Resonator
crystal 44.645mhz quartz crystal thickness monitor quartz crystals quartz resonator
Radio communication, audio-visual equipment, office automation equipment, consumer product,etc
Dimension and Land pattern (unit: mm)
Frequency range & equivalent series resistance
Frequency range |
See table 1 |
Vibration mode |
AT cut: fuandamental. third |
Frequency tolerance at 25℃ |
±10, ±15, ±20, ±30, ±50ppm |
Operating temperature range and frequency stability |
See table 2 |
Equivalent series resistance |
See table 1 |
Shunt capacitance |
5.0pF max or special |
Measure instrument |
S&A 250B PI system |
Load capacitance |
Series8, 16, 20, 30pF or special |
Drive level |
10, 100, 300uW or special |
Insulation resistance |
500 M Ω min/DC 100V |
Aging |
±1, 3, 5 ppm/year |
Storage temperature range |
-40~+85℃ |
Table 1 Operating temperature range and frequency stability
Frequency(MHz) |
Vibration mode |
SX-2520(Ω) |
12.0~16.0 |
Fundamental/F |
100 |
16.1~20.0 |
Fundamental/F |
80 |
20.1~30.0 |
Fundamental/F |
60 |
30.1~50.0 |
Fundamental/F |
50 |
Table 2 Operating temperature range and frequency stability
|
PPM TEMP |
±5 |
±10 |
±20 |
±30 |
±50 |
0~+50℃ |
√ |
√ |
√ |
√ |
√ |
-10~+60℃ |
|
√ |
√ |
√ |
√ |
-20~+70℃ |
|
√ |
√ |
√ |
√ |
-30~+80℃ |
|
|
√ |
√ |
√ |
-40~+90℃ |
|
|
√ |
√ |
√ |
DIP process flow
Blank process flow
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