Additional Resources: Product Page 3D Model PCB Footprint date 11/22/2019 page 1 of 4 MODEL: CMT-7525S-SMT-TR DESCRIPTION: MAGNETIC BUZZER TRANSDUCER FEATURES externally driven SMT 90 dB SPL SPECIFICATIONS parameter conditions/description min typ max units Vo-p rated voltage 3.6 Vo-p operating voltage 2.5 4.5 Vo-p 0V current consumption at rated voltage, 2,730 Hz square wave, duty 100 mA rated frequency 2,730 Hz at 5 cm (A-weight), rated voltage, 2,730 Hz sound pressure level 85 90 dBA square wave, duty coil resistance 13 16 19 dimensions 7.5 x 7.5 x 2.5 mm weight 0.3 g material LCP terminal SMT type (Sn plating) operating temperature -40 85 C storage temperature -40 85 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 <40% 25 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 260C 255C 20~40 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-7525S-SMT-TR DESCRIPTION: MAGNETIC BUZZER TRANSDUCER date 11/22/2019 page 2 of 4 MECHANICAL DRAWING units: mm tolerance: 0.5 mm TPVOE QPSU XFFL ZFBS 12 27..3127 13 28..3127 Recommended PCB Layout Top View FREQUENCY RESPONSE CURVE I L MEASUREMENT METHOD +VDC +2.5V 180 TR: 0 2SC1741AS cuidevices.com 31 3L 311 31 61 71 81 91 eC :1 211