SWT622 Series – 6.2MM X 2.1MM Cylindrical Watch Crystal
Part Numbering Guide
Electrical Parameters
| Parameters | Units | Min | Typical | Max | Remarks |
|---|---|---|---|---|---|
| Frequency Range | kHz | 32.768 | |||
| Frequency Tolerance at +25ºC | ppm | -20 | +20 | ||
| Frequency Stability vs. Aging | ppm | -3 | +3 | First year @ +25ºC. | |
| Frequency Coefficient (ß) | ppm/T² | -0.040 | -0.035 | -0.030 | |
| Operating Temperature | °C | -40 | +85 | See part numbering guide for options. | |
| Turnover Temperature | °C | +20 | +25 | +30 | |
| Storage Temperature | °C | -55 | +125 | ||
| Load Capacitance | pF | 6 | 18 | See part numbering guide for options. | |
| Shunt Capacitance | pF | 1.5 | |||
| Drive Level | μW | 1 | |||
| Insulation Resistance | MΩ | 500 | @ 100VDC ± 15V. | ||
| Equivalent Series Resistance | kΩ | 50 |
Outline Drawing & Recommended Landed Pattern
All dimensions are in millimeters (mm) unless otherwise noted. Drawings are not to scale.
