石英晶振 HC-49S 晶振14.7456MHZ ±20PPM 20pf

1.型  号Modle *.

HC-49S

2.频  率Nominal frequency

14.7456MHz

3.调整频率Frequency stability(Tol)

&plu*n;20ppm(ref at 25℃)

4.振动模式Oscillation Mode

Fundamental□3rd Overtone

5.工作温度Operation Temperature

-20℃～ 70℃

6.温度频差Temperature Charactcristic

&plu*n;30ppm(-20℃TO 70℃)

7..焊接温度Resistance to soldering heat

260&plu*n;5℃solder bath for 3&plu*n;0.05

8.负载电容Load Capacitancc

20PF

9.串联电阻Series Resistance(*R)

30Ωmax

10.激励功率Drive Level

100uw

11.静态电容Shunt Capacitance

7pf max

12.老  化Aging Rate per Year

&plu*n;5ppm/year

13.*缘电阻Insulation Resistance

500MΩ min at DC 100V&plu*n;10V

1.贮存温度Storage Temperature Range

-45℃to 85℃

2.贮存湿度Storage Humidity

20—80%

3.耐湿试验Bumidity Test

试验结果Test Result

1. 温度Temperature&plu*n;85℃ &plu*n;2℃
2. 时间Length of Test:24小时(HRS)
3. 相对湿度Relative Humidity:90-95%

1.1R＞500Ω at 100V&plu*n;10V(DC)

2.电性:频率牵引度无变化

No Change W.R.T Pulling Force

4.盐雾试验Salt Spray Test

试验结果Test Result

1.温度Temperature&plu*n;35℃ &plu*n;2℃

2.时间Length of Test:48小时(HRS)

3.氯化钠NaCl1%：5%

表面*迹No trace on the surface