SMD2520 Datasheet, PDF (6/8 Pages) Shenzhen Luguang Electronic Technology Co., Ltd – SMD Quartz Crystal Resonator

SMD Quartz Crystal Resonator
3.2 Environmental characteristics
Provided that measurement shall be carried out after letting it alone in the room temperature for 1h.
Item
Specifications
1 Humidity
It alone at 40℃± 2℃ in humidity of 90~95% for 48h.
Storage in Low
2
Temperature
It alone at –40℃± 2℃ for 240h.
Storage in High
3
Temperature
It alone at 85℃± 2℃ for 240h.
Temperature
4
Cycle
The following temperature cycle (10 cycles). Refer to below Fig. Temperature
shift from low to high, high to low shall be done in 1℃/min.
85+/-5℃
30 min
25+/-5℃
2 min
-40+/-5
30 min
25+/-5℃
2 min
1 Cycle
*Frequency variation shall be within +/-5ppm and equivalent resistance less than ±15% max. after the test.
Note: Measuring the frequency should be done after keeping test samples at room temperature for 24 hours.
3.3 SUGGESTED IR REFLOW PROFILE