Additional Resources: Product Page 3D Model date 12/05/2019 page 1 of 4 MODEL: CPT-2521C-500 DESCRIPTION: PIEZO BUZZER TRANSDUCER FEATURES externally driven wire leads IP68 rated SPECIFICATIONS parameter conditions/description min typ max units operating voltage 50 Vp-p current consumption at 20 Vp-p, 3,700 Hz square wave 40 mA rated frequency 3,700 Hz sound pressure level at 30 cm, 20 Vp-p, 3,700 Hz square wave 95 dB electrostatic capacity at 120 Hz/1 V 17,500 25,000 32,500 pF dimensions 25.6 x 21.6 mm weight 15.0 g material PBT+15% GF terminal wire type operating temperature -30 85 C storage temperature -40 95 C RoHS yes IP level IP68 (IEC standard 529 edition 2.0 (1989)) Notes: 1. All specifications measured at 5~35C, humidity at 45~85%, under 86~106 kPa pressure, unless otherwise noted. SOLDERABILITY parameter conditions/description min typ max units hand soldering for maximum 5 seconds 330 380 C cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: CPT-2521C-500 DESCRIPTION: PIEZO BUZZER TRANSDUCER date 12/05/2019 page 2 of 4 MECHANICAL DRAWING units: mm tolerance: 0.5 mm wire: UL1007 LF 22 AWG FREQUENCY RESPONSE CURVE cuidevices.com