ATSM-49-R-Series

HC-49/S, SMD, Surface Mount Crystals

Parameter	Symbol	Minimum	Typical	Maximum	Unit	Notes
Frequency Range	F_R	3.579545		72	MHz
Frequency Tolerance	ΔF/F			±30	ppm
Frequency Stability	ΔF_T/F			±50	ppm
Operating Temperature	T_A	-10		+70	°C
Storage Temperature	T_S	-55		+125	°C
Aging				±3	ppm	First Year
Aging				±5	ppm	Thereafter (per year - up to 3rd year)
Load Capacitance	C_L		18		pF	Series resonant designated by "SR" prefix (i.e. SRATSM-49)
Shunt Capacitance	C_O			7	pF
Equivalent Series Resistance	ESR			200	Ω	Fundamental (AT-cut) 3.579 MHz to 3.999 MHz
Equivalent Series Resistance	ESR			150	Ω	Fundamental (AT-cut) 4.000 MHz to 4.999 MHz
Equivalent Series Resistance	ESR			120	Ω	Fundamental (AT-cut) 5.000 MHz to 5.999 MHz
Equivalent Series Resistance	ESR			100	Ω	Fundamental (AT-cut) 6.000 MHz to 9.999 MHz
Equivalent Series Resistance	ESR			80	Ω	Fundamental (AT-cut) 10.000 MHz to 13.999 MHz
Equivalent Series Resistance	ESR			50	Ω	Fundamental (AT-cut) 14.000 MHz to 40.000 MHz
Equivalent Series Resistance	ESR			100	Ω	Fundamental (BT-cut) 24.000 MHz to 50.000 MHz
Equivalent Series Resistance	ESR			100	Ω	Third Overtones (AT-cut) 25.000 MHz to 39.999 MHz
Equivalent Series Resistance	ESR			80	Ω	Third Overtones (AT-cut) 40.000 MHz to 72.000 MHz
Drive Level	D_L	25	100	500	μW
Insulation Resistance	I_R	500			MΩ

Parameter	Method/Condition	Note
Vibration	MIL-STD-202, Methods 201 & 204 (10 g from 10 Hz to 2000 Hz)
Thermal Cycle	MIL-STD-883, Method 1010, Condition B (-55 °C to +125 °C, 15 min dwell, 10 cycles)
Max Soldering Conditions	See Solder Profile
Aging	Internal Specification, 168 hrs at +55 °C
Physical Dimensions	MIL-STD-883, Method 2016
Mechanical Shock	MIL-STD-202, Method 213, Condition C (100 g, 6 ms duration, ½ sine wave)
Gross Leak	MIL-STD-202, Method 112 (30 second immersion)
Fine Leak	MIL-STD-202, Method 112 (1 x 10^-8 atm. cc/s of helium)
Resistance to Solvents	MIL-STD-883, Method 2015 (Three 1 minute soaks)

ATSM-49-R Series