Additional Resources: Product Page 3D Model date 05/13/2020 page 1 of 3 MODEL: CEB-35D26 DESCRIPTION: PIEZOELECTRIC DIAPHRAGM FEATURES piezo element with wire leads 30 Vp-p max operating voltage 2,600 Hz rated frequency SPECIFICATIONS parameter conditions/description min typ max units operating voltage 30 Vp-p resonant frequency only for piezo element without wire 2,100 2,600 3,100 Hz resonant impedance only for piezo element without wire 300 electrostatic capacity at 1000 Hz/1 V 21,000 30,000 39,000 pF dc resistance for 1 second 20 M dimensions 35 x 0.53 mm weight 2.0 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 wire: UL1571 32 AWG cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: CEB-35D26 DESCRIPTION: PIEZOELECTRIC DIAPHRAGM date 05/13/2020 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 100 Hz to 5 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 1 kHz 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