Crystal Unit
HC-49SMD
Applications
Features
‧Industrial Control
Consumers.
‧Dimensions: 11.5 x 4.80 x3.8mm.
‧Standard Frequency: 3.2768~64MHz
‧Surface mount type crystal units.
‧A great number of standard frequencies.
Specifications(规格参数)
Item
Symbol
Specifications
f_nom
3.2768~64MHz
-
AT Fundamental
CL
12pF, 20pF, or specify
Frequency Tolerance(频率偏差) (at 25℃ )
f_tol
±10ppm, ±20ppm, or specify
Frequency Versus Temperature Characteristics(频率-温度特性)
f_tem
±20ppm, or specify
Operating Temperature(工作温度)
T_use
-20~+70℃, or specify
Storage Temperature(储存温度)
T_stg
-40~+85℃
Shunt Capacitance(静态电容)
C0
7pF Max.
Level of Drive(激励电平)
DL
1~500μW Max.(100μW typical)
f_age
±3ppm/year Max.
Nominal Frequency Range(额定频率范围)
Vibration Mode(震动模式)
Load Capacitance(负载电容)
Aging (老化)(at 25℃ )
Equivalent Series Resistance(等效串联电阻(ESR))
HC-49SMD
3.2768 ~ 4MHz
180 Ω Max.
6 ~ 7MHz
80 Ω Max.
4 ~ 5MHz
120 Ω Max.
7 ~ 10MHz
60 Ω Max.
5 ~ 6 MHz
100 Ω Max.
10 ~ 30MHz
40 Ω Max.
Dimensions and Recommended land pattern(外观尺寸及推荐焊盘)
Dimensions (Unit: mm)
Recommended land pattern(Unit: mm)
4.47±0.5
9.9±0.1
3.5±0.5
12.6±0.5
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