ATSM-49-R Series

ATSM-49-R Series - Crystal

HC-49/S, SMD, Surface Mount Crystals

Parameter Symbol Minimum Typical Maximum Unit Notes
Frequency RangeFR3.57954572MHz
Frequency ToleranceΔF/F±30ppm
Frequency StabilityΔFT/F±50ppm
Operating TemperatureTA-10+70°C
Storage TemperatureTS-55+125°C
Aging±3ppmFirst Year
Aging±5ppmThereafter (per year - up to 3rd year)
Load CapacitanceCL18pFSeries resonant designated by "SR" prefix (i.e. SRATSM-49)
Shunt CapacitanceCO7pF
Equivalent Series ResistanceESR200ΩFundamental (AT-cut) 3.579 MHz to 3.999 MHz
Equivalent Series ResistanceESR150ΩFundamental (AT-cut) 4.000 MHz to 4.999 MHz
Equivalent Series ResistanceESR120ΩFundamental (AT-cut) 5.000 MHz to 5.999 MHz
Equivalent Series ResistanceESR100ΩFundamental (AT-cut) 6.000 MHz to 9.999 MHz
Equivalent Series ResistanceESR80ΩFundamental (AT-cut) 10.000 MHz to 13.999 MHz
Equivalent Series ResistanceESR50ΩFundamental (AT-cut) 14.000 MHz to 40.000 MHz
Equivalent Series ResistanceESR100ΩFundamental (BT-cut) 24.000 MHz to 50.000 MHz
Equivalent Series ResistanceESR100ΩThird Overtones (AT-cut) 25.000 MHz to 39.999 MHz
Equivalent Series ResistanceESR80ΩThird Overtones (AT-cut) 40.000 MHz to 72.000 MHz
Drive LevelDL25100500μW
Insulation ResistanceIR500
Parameter Method/Condition Note
VibrationMIL-STD-202, Methods 201 & 204 (10 g from 10 Hz to 2000 Hz)
Thermal CycleMIL-STD-883, Method 1010, Condition B (-55 °C to +125 °C, 15 min dwell, 10 cycles)
Max Soldering ConditionsSee Solder Profile
AgingInternal Specification, 168 hrs at +55 °C
Physical DimensionsMIL-STD-883, Method 2016
Mechanical ShockMIL-STD-202, Method 213, Condition C (100 g, 6 ms duration, ½ sine wave)
Gross LeakMIL-STD-202, Method 112 (30 second immersion)
Fine LeakMIL-STD-202, Method 112 (1 x 10^-8 atm. cc/s of helium)
Resistance to SolventsMIL-STD-883, Method 2015 (Three 1 minute soaks)
Ordering Information

Line Drawing

Line Drawing