400EP18A Specification

Air Ultrasonic Ceramic Transducers

400EP18A

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	Features
	Compact and light weight High sensitivity and sound pressure level Excellent temperature and humidity durability Low cost
	Applications
	Remote control devices Robotics Intrusion Alarms Energy saving equipments

Specification
400EP18A	Transceiver
Center Frequency	40.0±1.0KHz
Bandwidth -6dB ( Figure Of Merit )	1.5KHz
Transmitting Sound Pressure Level at resonant frequency; 0dB re 0.0002μbar per 10Vrms at 30cm	108dB min.
Receiving Sensitivity at resonant frequency; 0dB=1 volt/μbar	-75dB min.
Ringing	1.2 ms max.
Capacitance at 1KHz ±20% Temperature Compensated Type	2600 pF 5200 pF
Max.Driving Voltage(cont.) @20 bursts, 25 ms repetition rate	20Vrms 100Vp-p
Total Beam Angle ( -6dB)	85° typical
Operation Temperature	-30℃ to 70℃
Storage Temperature	-40℃ to 80℃

All specification taken typical at 25℃; Both lead pins and lead wires output are available.
Temperature compensated type is available upon request.

Models available
1.400EP18A	Aluminum Housing

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