Additional Resources: Product Page 3D Model PCB Footprint date 12/03/2019 page 1 of 4 MODEL: CST-931AP DESCRIPTION: MAGNETIC BUZZER TRANSDUCER FEATURES top port 85 db SPL minimum externally driven SPECIFICATIONS parameter conditions/description min typ max units Vo-p rated voltage 3.0 Vo-p operating voltage 2.0 4.0 Vo-p 0V current consumption at rated voltage, 2,730 Hz square wave, duty 80 mA rated frequency 2,730 Hz at 10 cm (A-weight), rated voltage, 2,730 Hz sound pressure level 85 92 dBA square wave, duty coil resistance 12.7 15.0 17.3 dimensions 9.0 x 4.5 mm weight 0.65 g material PBT terminal pin type (Au plating) operating temperature -30 70 C storage temperature -30 80 C RoHS yes Notes: 1. All specifications measured at 5~35C, humidity at 45~85%, under 86~106kPa pressure, unless otherwise noted. SOLDERABILITY parameter conditions/description min typ max units wave soldering see wave soldering profile 250 C 4Tfd Nby 3.6D0Tfd 2 41D0Tfd 3.6D0Tfd 2/6Tfd Nby cuidevices.comAdditional Resources: Product Page 3D Model PCB Footprint CUI Devices MODEL: CST-931AP DESCRIPTION: MAGNETIC BUZZER TRANSDUCER date 12/03/2019 page 2 of 4 MECHANICAL DRAWING units: mm tolerance: 0.5 mm Sound Emission Hole 01 18---2018 02 19---2019 FREQUENCY RESPONSE CURVE MEASUREMENT METHOD +VDC +2.5V 180 TR: 0 2SC1741AS cuidevices.com