Additional Resources: Product Page 3D Model PCB Footprint date 01/06/2020 page 1 of 4 MODEL: CT-1205-SMT-TR DESCRIPTION: MAGNETIC BUZZER TRANSDUCER FEATURES washable top sound port externally driven SPECIFICATIONS parameter conditions/description min typ max units Vo-p rated voltage 5 Vo-p operating voltage 3 8 Vo-p 0V current consumption at rated voltage, 2,400 Hz square wave, duty 40 mA rated frequency 2,400 Hz at 10 cm (A-weight), rated voltage, 2,400 Hz sound pressure level 87 92 dBA square wave, duty coil resistance 38.3 45 51.7 dimensions 12.8 x 12.8 x 7.1 mm weight 2 g material PPS (S-206) terminal SMT type (Sn plating) operating temperature -30 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: CT-1205-SMT-TR DESCRIPTION: MAGNETIC BUZZER TRANSDUCER date 01/06/2020 page 2 of 4 MECHANICAL DRAWING units: mm tolerance: 0.5 mm (+) (-) (+) (-) RECOMMENDED PCB LAYOUT (Top View) CT-1205 0112 CHINA FREQUENCY RESPONSE CURVE 100 90 dB 80 70 60 50 20 2002Hz K20K MEASUREMENT METHOD +VDC +2.5V 180 TR: 0 2SC1741AS cuidevices.com