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E1WS Series Crystal
Watch Crystal Resonator 3.7mm x 7.9mm x 2.5mm 4 Pad Plastic Surface Mount (SMD)

Revision  C  05/28/2013

Electrical Specifications

Nominal Frequency 32.768kHz
Frequency Tolerance ±20ppm at 25°C
Frequency Stability Temperature Coefficient -0.034 ±0.006 (ppm/(Change in °C)2) Maximum
Turn over Temperature 25°C ±5°C
Operating Temperature Range -40°C to +85°C
Load Capacitance 12.5pF Parallel Resonant
Shunt Capacitance(C0) 1.35pF Typical
Motional Capacitance 3.0fF Typical
Equivalent Series Resistance 50,000 Ohms Maximum
Mode of Operation Fundamental
Crystal Cut Tuning Fork
Drive Level 1µWatt Maximum
Aging (at 25°C) ±3ppm/year Maximum
Storage Temperature Range -55°C to +125°C
Insulation Resistance Measured at 100VDC
500 Megaohms Minimum