Air Ultrasonic Ceramic Transducers 250ST/R240
Features
  • Compact and light weight
  • High sensitivity and sound pressure level
  • Excellent temperature and humidity durability
  • Low cost
Applications
  • Remote control devices
  • Robotics
  • Instrusion Alarms
  • Energy saving equipments
Specification
250ST240 Transmitter
250SR240 Receiver
Center Frequency 25.0±1.0Khz
Bandwidth(-6dB) 1.5Khz (Tx), 1.8Khz(Rx)
Transmitting Sound Pressure Level
at 25.0Khz; 0dB re 0.0002mbar per 10VRMs at 30cm
115dB min.
Receving Sensitivity at 25.Khz 0dB=1 volt/µbar -60dB min.
Capacitance at 1Khz ± 20% 2400pF
Max.Driving Voltage(cont.) 20Vrms
Total Beam Angle -6dB 45° typical
Operation Temperature -30 to 80° C
Storage Temperature -40 to 85° C
All specification taken typical at 25°C; closer frequency tolerance can be supplied upon request.
Models available
1. 250ST/R240 Aluminum Housing
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