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

ILSI America MMD Oscilent

EA1216 Series Crystal
Quartz Crystal Resonator 1.2mm x 1.6mm x 0.4mm 4 Pad Ceramic Surface Mount (SMD)

Revision  A  08/29/2017

Electrical Specifications

Nominal Frequency 24.000MHz to 54.000MHz
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 -10°C to +60°C
-20°C to +70°C
-40°C to +85°C
Load Capacitance 8pF to 32pF Parallel Resonant
Series Resonant
Equivalent Series Resistance 150 Ohms Maximum over Nominal Frequency of 24MHz to 40MHz
100 Ohms Maximum over Nominal Frequency of 40.000001MHz to 54MHz
Shunt Capacitance 3.5pF Maximum
Mode of Operation AT-Cut Fundamental
Crystal Cut AT-Cut
Storage Temperature Range -40°C to +125°C
Drive Level 100µWatts Maximum
Spurious Response Measured from Fo to Fo +5000ppm
-3dB Minimum
Aging at 25°C ±3ppm/year Maximum
Insulation Resistance Measured at 100VDC
500 Megaohms Minimum