Additional Resources: Product Page 3D Model date 05/12/2020 page 1 of 3 MODEL: CEB-20D64 DESCRIPTION: PIEZOELECTRIC DIAPHRAGM FEATURES piezo element with feedback wire 30 Vp-p max operating voltage 6,500 Hz rated frequency SPECIFICATIONS parameter conditions/description min typ max units operating voltage 30 Vp-p resonant frequency only for piezo element without wire 6,000 6,500 7,000 Hz resonant impedance only for piezo element without wire 350 electrostatic capacity at 120 Hz/1 V 9,100 13,000 16,900 pF dc resistance for 1 second 20 M dimensions 20 x 0.43 mm weight 1.5 g material brass terminal wire leads operating temperature -20 70 C storage temperature -30 80 C RoHS yes Notes: 1. All specifications measured at 5~35C, humidity at 45~85%, under 86~106kPa pressure, unless otherwise noted. MECHANICAL DRAWING units: mm tolerance: 0.5 mm MTGEP36 wire: UL1571 32 AWG Red Black 45 cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: CEB-20D64 DESCRIPTION: PIEZOELECTRIC DIAPHRAGM date 05/12/2020 page 2 of 3 MEASURING METHOD Resonant Frequency / Resonant Impedance The piezo electric diaphragm shall be clamped at a node point as shown in the following figure to be free from any mechanical stress, and measured its resonant frequency and resonant impedance by using vector impedance analyzer or equivalent. When the input frequency is swept within 2 kHz to 8 kHz, the resonant frequency is defined as the frequency where the impedance shows the minimum value, and this impedance shall be the resonant impedance. Static Capacitance The electrostatic capacitance shall be measured at 120 Hz by using LCR meter HP4194A(H.P.) or equivalent. This part shall be clamped in the same way as the measurement of resonant frequency and resonant impedance as mentioned above. cuidevices.com