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VT Series (VT-150-F) Quartz Crystal units for Watches

  • Compact tubular package.
  • Photolithographic process.
  • Excellent shock resistance and environmental characteristics.
  • Complies with RoHS directive
  • Complete Pb-free.

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Item Symbol Specifications
Nominal Frequency f_nom 32.768kHz
Frequency Tolerance f_tol ±5 x 10-6,
±10 x 10-6,
±20 x 10-6
Turnover Temperature Ti +25±5ºC
Parabolic Coefficient B (−0.035±10%) x
Load Capacitance CL 6pF,7pF,9pF, 12.5pF
Motional Resistance(ESR) R1 50kΩ max.
Absolute Maximum Drive Level DLmax. 1.0μW
Drive Level DL 0.1μW
Shunt Capacitance 0 0.9pF typ.
Frequency Ageing f_age ±3 x 10-6
Operating Temperature T_use −10ºC to +60ºC
Storage Temperature T_stg −30ºC to +70ºC