TUNING FORK CRYSTAL UNITS (Cylinder Type) RoHS compliant / Pb free CFS-206.CFS-145.CFV-206 FEATURES 7Best suited for portable devices with low current consumption. 7For a clock source in digital equipment. Life-size 6.00.2 o0.20.05 o1.40.1 0.450.08 0.70.2 o2.00.1 o0.260.05 DIMENSION [mm] 5.00.1 10.00.2 CFS-206, CFV-206 4.30.3 CFS-145 STANDARD SPECIFICATIONS Item Nominal Frequency Frequency Tolerance Load capacitance Model CFS-206 CFS-145 f0 32.768kHz 30kHz100kHz f/f0 20ppm 30ppm at 25C 12.5pF Need to specify your requirement CL 8.0pF 12.5pF TOPR -2070 Storage Temperature Range TSTR -4085 Turnover Temperature TM 255 Temperature Coefficient -0.0340.006ppm/2 Motional (series) resistance R1 Level of drive DL Shunt capacitance Conditions Need to contact us for the available frequency in CFV-206 Operating Temperature Range Aging (first year) CFV-206 35KMax. 50KMax. at 25C 5ppm Max. 253 0.81.7pF Typ. Depend on frequency 1W Max. f/f0 C0 40KMax. 3ppm Max. 1.35pF Typ. http://cfm.citizen.co.jp/english/product/pr02.html 1.00pF Typ.