1

标称频率Nominal frequency

26MHz

2

振荡模式 Mode of vibration

AT Fundamental

3

负载电容 Load capacitance

9pF

4

调整频差 Frequency tolerance

±10ppm(25±5℃)

5

温度频差 Frequency temperature characteristics

±3ppm/℃2(-40to+85℃)

6

谐振电阻 Equivalent series resistance

≤30 Ω max

7

静 电 容 Shunt capacitance

≤3.5pF Typ

8

绝缘电阻 Insulation resistance

≤500MΩmin./100±15VDC

10

激励电平 Drive level

0.1-10uW

11

老 化 率 Aging  

±3ppm/year

12

贮存温度 Storage temperature range

-55℃to +125℃

13

测试仪器 Test Impedance Meter

S&A 250B

14

印字 MARK

26.000MHZ

NO.

测试项目Test item

测试方法     Test Method

1

跌落

Shock

100g dummy,Natural drop from 1500mm height on to

the concrete,3 directions * 10 times

*3△f/f:±8×10-6

2

振   动Vibration

频率Frequency: 10-55Hz

峰值Amplitude : 0.75mm

周期Cycle time : 15 min (10-500-10 Hz)

方向Direction : 3 mutually perpendicular planes in each 2h

*3△f/f:±3×10-6

3

耐焊接热Soldering

For convention reflow soldering furnace(2 times).

*3△f/f:±5×10-6

4

高温储存 High temperature storage

温度Temperature : +125℃±5℃

时间Time      :  1000 h±12h

*3△f/f:±10×10-6

温度Temperature : +85℃±5℃

时间Time      :  1000 h±12h

*3△f/f:±7×10-6

5

低温储存  Low temperature storage

温度Temperature  : -55±5℃

时间Time        :  1000 h±12h

*3△f/f:±10×10-6

6

稳态湿热 High temperature and humidity

温度Temperature : +85±2℃

湿度Humidity   : 85% RH

时间Time       : 1000 h

*3△f/f:±10×10-6

7

温度循环Temperature cycle

-55℃←→+125ºC

30 minutes at each temperature *100 cycles                             

*3△f/f:±10×10-6

8

回流焊

Reflow

*3△f/f:±10×10-6