26.000MHz 10PPM 9PF SMD Crystal Oscillator 4G Bluetooth Module Higher Accuracy

Standard Environmental Condition:

Environmental Temperature:15℃~35℃

Humidity:45%~85%

Atmospheric pressure:86~106KPa

Operating Temperature Range:-20℃~70℃

Crystal Frequency & Resistance will be tested under the following conditions,

Unless extra requirments:

standard temperature(25±2℃) after heat balance.

Storage Temperature Range:-40℃~+85℃

Mechanical test:

The quartz crystal unit shall be subjected to normal atmospheric conditions for 1hr before being tested.

Dropping Test:

The Units are measured for its frequency and resistance in accordance with Table1 & without mechanical damage,after allowing the crystal to fall freely.

From 75 cm of height 3 times on the firmed wood.

Vibration Test:

The Units are measured for its frequency and resistance in accordance with Table 1&without mechanical damage afer subjectiong to 2hrs of vibration with 0.75mm amplitude with 10~55Hz frequency sweep 20 times.

Sealing Tightness:

Find Lead Test:≤1×10^-8atm·cc/S by Helium mass-mass-spectrometer detector,and vacuum and reach 1×10^-3Pa；

Resistance to Soldering Heat:

The Units are measured for its frequency and resistance in accordance with Table 1 after dipping into molten solder with the temperature of 320℃±10℃；For 3~4 secs and at a depth up to a point 2.0mm from the base root.