A.SCOPE Thisspecificationcoverstheopenstructuretypeultrasonicceramicmicrophoneswhichareusedforreceiverofultrasonicwaves. B.SPECIFICATIONNo.ItemUnitSpecificationCondition1NominalFrequencyKHz25 2ReceiveSensitivitydBMin. 65at25KHz(0dB=V/Pa)SeeFig.13CapacitancepF3100 30%at1kHz4Operatingtemp.℃-40~+80 5Material ABS-777D 6Terminal pintypeSeeappearancedrawing7EnvironmentalProtectionRegulation RoHS