Additional Resources: Product Page 3D Model PCB Footprint date 01/06/2020 page 1 of 4 MODEL: CSS-0578-SMT-TR DESCRIPTION: MAGNETIC BUZZER TRANSDUCER FEATURES small form factor top sound port externally driven SPECIFICATIONS parameter conditions/description min typ max units Vo-p rated voltage 3 Vo-p operating voltage 2 4 Vo-p 0V current consumption at rated voltage, 4,000 Hz square wave, duty 95 mA rated frequency 4,000 Hz at 10 cm (A-weight), rated voltage, 4,000 Hz sound pressure level 78 dBA square wave, duty coil resistance 9 12 15 dimensions 5.0 x 5.0 x 3.0 mm weight 0.3 g material L.C.P. (black) terminal SMT type (Sn 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 <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: CSS-0578-SMT-TR DESCRIPTION: MAGNETIC BUZZER TRANSDUCER date 01/06/2020 page 2 of 4 MECHANICAL DRAWING units: mm tolerance: 0.5 mm - WEEK YEAR 01 8---2018 RECOMMENDED 02 9---2019 PCB LAYOUT (Top View) FREQUENCY RESPONSE CURVE 100 90 dB 80 70 60 50 20 200 Hz 2K 20K MEASUREMENT METHOD +VDC +2.5V 180 TR: 0 2SC1741AS cuidevices.com