Additional Resources: Product Page 3D Model PCB Footprint date 10/23/2020 page 1 of 4 MODEL: CMT-1604-SMT-TR DESCRIPTION: PIEZO BUZZER TRANSDUCER FEATURES low current low profile externally driven SPECIFICATIONS parameter conditions/description min typ max units operating voltage 25 Vp-p current consumption at 3 Vp-p, 4,000 Hz square wave 5 mA rated frequency 4,000 Hz sound pressure level at 10 cm, 3 Vp-p, 4,000 Hz square wave 81 dB pF electrostatic capacity at 1 KHz, 1 V 14,000 20,000 26,000 dimensions 16 x 16 x 2.6 mm weight 0.96 g material LCP (white) + PCB (FR4) terminal SMT type (Au plating) operating temperature -40 120 C storage temperature -40 120 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 250 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-1604-SMT-TR DESCRIPTION: PIEZO BUZZER TRANSDUCER date 10/23/2020 page 2 of 4 MECHANICAL DRAWING units: mm tolerance: 0.2 mm RECOMMENDED PCB LAYOUT (Top View) FREQUENCY RESPONSE CURVE Outp ut Re sponse (S ig na l 1) - In put (M ag nitude ) SSR Analyz er d B/20u Pa 10 0 90 80 70 60 50 40 30 20 10 0 -1 0 15 0 200 30 0 50 0 70 0 1k 1.5k 2k 3k 5k 7k 10 k 15 k Hz cuidevices.com