UM-1SMD

      UM1-SMD and UM-5SMD crystals are standard UM-1/UM-5 crystals.It offers the ease of surface-mount assembly with the technical benefits of close-tolerance crystal parameters achievable by the use of circular AT-Cut crystal blanks.
      It has 6 festures. The first one is about Surface mount version of UM-1.The second one that it is available with close tolerances.The third one is fully customisable for application requirements.The fourth one is quick deliveries available.The fifth one is industry-standard package.The last one is low installed cost.
      The following is about its general specification .Frequency range is from 1.0MHz to 200MHz. SL-Cut (<1.3MHz) corresponds to Calibration Tolerance at 25ºC is from ±50ppm and Frequency stability over temp is from ±100ppm -10° to +60°C. AT-Cut (>1.3MHz) corresponds to Calibration Tolerance at 25ºC is from ±3ppm and Frequency stability over temp is from ±3ppm 0° to +50°C. Shunt Capacitance (C0) is 4pF typical, 7pF maximum. Load Capacitance (CL) is Series or from 8pF to 32pF(Customer to specify CL). Ageing should be within±2ppm max 1st year and±1ppm max per year after. Drive level is100mW maximum. Holder is Resistance-weld, hermetic seal. Holder Variants is UM-1SMD. Supply format is Bulk pack (standard) or tape and reel.