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Ecliptek is one of the ILSI America brands, which also include:

ILSI America MMD Oscilent

EU Series Crystal
Quartz Crystal Resonator HC49/U Thru-Hole Metal Resistance Weld Seal

Revision  G  10/26/2012

Electrical Specifications

Nominal Frequency 1.8432MHz to 65.000MHz
Some frequencies within this range may not be available.
Frequency Tolerance (at 25°C) ±50ppm Maximum
±30ppm Maximum
±15ppm Maximum
±10ppm Maximum
Frequency Stability
(over Operating Temperature Range)
±100ppm Maximum
±50ppm Maximum
±30ppm Maximum
±20ppm Maximum
±15ppm Maximum
Operating Temperature Range 0°C to +70°C
-20°C to +70°C
-40°C to +85°C
Load Capacitance 10pF to 50pF Parallel Resonant
Series Resonant
Equivalent Series Resistance Click to Open ESR Table
Shunt Capacitance 7pF Maximum
Mode of Operation Fundamental or Third Overtone
Crystal Cut AT
Storage Temperature Range -40°C to +125°C
Drive Level 2mWatts Maximum
Aging (at 25°C) ±5ppm/year Maximum
Insulation Resistance Measured at 100VDC
500 Megaohms Minimum