VT Series Quartz Crystal Units for Low Frequencies VT-150-F/VT-200-F FEATURES •Compact tubular package. •Photolithographic process. •Excellent shock resistance and environmental characteristics. •RoHS directive compliant. •Complete Pb-free. APPLICATIONS Real Time Clocks, Timers, Water/Electricity/Gas Meter, Remote-Controllers, Portable Applications STANDARD SPECIFICATIONS Conditions without notice (Temperature: 25± 2°C, DL: 0.1µW) Symbol Specifications f_nom 32.768kHz Frequency Tolerance f_tol (±5 x 10−6), ±10 x 10−6, ±20 x 10−6 Turnover Temperature Ti +25±5°C Parabolic Coefficient B (−3.5±0.8) x 10−8/°C2 Load Capacitance CL 4.5 to 12.5pF R1 50kΩ max. Item Nominal Frequency Motional Resistance (ESR) Absolute Maximum Drive Level DLmax 1µW Level of Drive DL 0.1µW Shunt Capacitance C0 0.9pF typ. Frequency Ageing f_age ±3 x 10−6 Operating Temperature T_use −10°C to +60°C Storage Temperature T_stg −30°C to +70°C Conditions / Notes +25±3°C, First Year Piece part basis DIMENSIONS VT-150-F VT-200-FL / VT-200-F 6.0 +0.10 −0.15 www.sii-crystal.com (φ 0.26) (0.65) φ 2.0max. (0.45) (φ 0.22) UNIT: mm Quartz Crystal 2011 5.0 min. 5.0 min. φ 1.5max. 5.0 max. UNIT: mm