Home Company Profile Factory Profile Our Products Contact Us News     Speaker Microphone Transducer Buzzer Plate Receiver                      TCF40-18TR1 Product Number TCF40-18TR1 Description Enquiry Send Enquiry Specification Resonant Frequency (KHz) 40 Sensitivity (odB=v/Pa)(min) -65 S.P.L.(at 10V 30cm)(odB=0.02mPa)(min) 100 Capacitance( ± 30% PF) 2000 Rest Resonant Time (ms) max 0.5   Speaker Condenser Microphone Buzzer & Transducer Buzzer Plate Receiver Copyright 2004 by Union Team Limited (Group)