Additional Resources: Product Page 3D Model PCB Footprint date 01/06/2020 page 1 of 4 MODEL: CMT-1261-SMT DESCRIPTION: PIEZO BUZZER TRANSDUCER FEATURES low current washable externally driven SPECIFICATIONS parameter conditions/description min typ max units operating voltage 20 Vp-p current consumption at 10 Vp-p, 5,000 Hz square wave 11 mA rated frequency 5,000 Hz sound pressure level at 10 cm, 10 Vp-p, 5,000 Hz square wave 90 dB electrostatic capacity at 1 kHz/1 V 13,300 19,000 24,700 pF dimensions 16.9 x 16.9 x 7.8 mm weight 2.6 g material PPS UL-94 V-0 (black) terminal SMT type (Au plating) operating temperature -30 70 C storage temperature -40 80 C RoHS yes 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 reel storage at relative humidity <60% 30 C 2 reflow soldering see recommended reflow soldering profile 260 C 3 drying conditions bake at 40C for 24 hours Note: 2. It is recommended to reflow solder within 48 hours from opening vacuum packaging at a temperature <30C & relative humidity <60%. 3. When out of packaging for more than 48 hours. SMT Reflow Solder Profile (Pb Free) Peak Temp 250C 245C 15 sec 217C 200C 150C 60~180 sec 60~150 sec Time (sec) cuidevices.com Temperature (C)Additional Resources: Product Page 3D Model PCB Footprint CUI Devices MODEL: CMT-1261-SMT DESCRIPTION: PIEZO BUZZER TRANSDUCER date 01/06/2020 page 2 of 4 MECHANICAL DRAWING units: mm tolerance: 0.5 mm RECOMMENDED PCB LAYOUT (Top View) FREQUENCY RESPONSE CURVE cuidevices.com