SMD Quartz Crystals 49SM
- Small Package.
- Low Cost.
- High Quality quartz crystal units for PC, Micro-processor,Communication.
X49SM Series( HC- 49SM): Specifications:
Table 1 |
X49SM( HC- 49SM ) |
Frequency Range |
3.579~80Mhz ( AT-Cut ) 20~48Mhz ( BT-Cut ) |
Vibration Mode |
At Cut/Fund, 3rd Overtone BT-Cut |
Frequency Tolerance (at 25°C±2°C ) |
±10~±100ppm Typical: ±20ppm, ±30ppm, ±50ppm |
Frequency Stability vs Operation Temperature Range |
see Table 2 |
Resonance Resistance |
see Table 3 |
Shunt Capacitance ( C0 ) |
7pF Max |
Load Capacitance ( CL ) |
8pF Min, Series Typical: 12pF 15pF, 20pF,30pF |
Drivel Level ( DL ) |
100µW~1000µW Typical: 500µW |
Insulation Resistance ( Ri ) |
500MegaOhms at DC100V |
Aging |
±5ppm/year Max. Typical: ±3ppm/year |
Package |
49SM1, 49SM2 |
Package Option |
-T: Tape and Reel |
Frequency stability vs Operation Temperature Range ( Ref to 25°C ) & Option Code
Table 2 |
±10ppm |
±20ppm |
±30ppm |
±50ppm |
±100ppm |
0~50°C |
A10 |
A20 |
A30 |
A50 |
A100 |
-10~60°C |
B10 |
B20 |
B30 |
B50 |
B100 |
-20~70°C |
C20 |
C30 |
C50 |
C100 |
|
-30~75°C |
D50 |
D100 |
|||
-40~85°C |
E50 |
E100 |
Resonance Resistance
Table 3 |
Vibration Mode |
ESR |
3.5~4.0Mhz |
AT-Fund. |
150Ohm |
4.1~5.0Mhz |
AT-Fund. |
120Ohm |
5.1~10.0Mhz |
AT-Fund. |
80Ohm |
10~30Mhz |
AT-Fund. |
50Ohm |
24~48Mhz |
BT-Fund. |
50Ohm |
27~50Mhz |
AT-3rd. O.T. |
100Ohm |
50~80Mhz |
AT-3rd. O.T. |
80Ohm |
X49SM Series ( HC- 49SM ) Part Numbering Key
SERIES |
CIRCUIT CONDITION |
FREQ. TOLERANCE AT 25°C |
MODE |
FREQ. STABILITY vs. TEMP. |
PACKAGE |
PACKAGE OPTIONS |
FREQ. |
X49SM |
S=Series 10P,12P, 15P,20P, 30P, etc. |
±10~±100ppm |
F=Fund. 3=3rd O.T. |
see Table 2 |
49S1 49S2 |
see Table 1 |
12Mhz etc. |
X49SM | 20P | 25 | F | B25 | 49SM1 |
-T | 32.768Mhz |
Sample Part Numbers:
X49SM-20P25-FB25-49SM1-T@32.768Mhz