The Abracon FC4SD series is the SMD crystal with resistance weld seal and it have termination finish of the sn, ag3.0 and cu0.5. The shunt capacitance of this SMD crystal is the 7 pF and its load capacitance is the 20 pF.Tolerances down to ±10 ppmStabilities down to ±5 ppmOperating temperature range to -20°C to +70°C