1Resonant Frequency4000±500Hz2Operating Voltage1～25 Vp-p3Rated CurrentMax.5mA ,At 4KHz 50% duty Square Wave 5Vp-p4Sound Output at 10cmMin. 80dB,At 4KHz 50% duty Square Wave 5Vp-p5Capacitance15000±30% pF At 1KHz6Operating Temperature-20℃～ 70℃7Store Temperature-30℃～ 80℃8Net WeightApprox 0.8g9RoHSYes 直径16.8mm，厚4mm；引线长度可订做
