1 / 2 page
Air Ultrasonic Ceramic Transducers
400ST/R120
Specification
400ST120
Transmitter
400SR120
Receiver
Center Frequency
40.0
±1.0Khz
Bandwidth (-6dB)
400ST120
2.0Khz
400SR120
2.0Khz
Transmitting Sound Pressure
Level
at 40.0Khz; 0dB re 0.0002
µbar
per 10Vrms at 30cm
115dB min.
Receiving Sensitivity
at 40.0Khz 0dB = 1 volt/
µbar
-67dB min.
Capacitance at 1Khz
±20%
2400 pF
Max. Driving Voltage (cont.)
20Vrms
Total Beam Angle
-6dB
85
° 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.
Model available:
1
400ST/R120
Aluminum Housing
2
400ST/R12B
Black Al. Housing
Dimensions: dimensions are in mm
Impedance/Phase Angle vs. Frequency
Tested under 1Vrms Oscillation Level
400SR120 Impedance
400SR120 Phase
400ST120 Impedance
400ST120 Phase
Sensitivity/Sound Pressure Level
Tested under 10Vrms @30cm
Beam Angle: Tested at 40.0Khz frequency
-90
-85
-80
-75
-70
-65
-60
-55
-50
35
36
37
38
39
40
41
42
43
44
45
Frequency (Khz)
90
95
100
105
110
115
120
125
130
100
1000
10000
100000
35
36
37
38
39
40
41
42
43
44
45
Frequency (Khz)
-90.0
-75.0
-60.0
-45.0
-30.0
-15.0
0.0
15.0
30.0
45.0
60.0
75.0
90.0
0
30
60
90
120
150
180
210
240
270
300
330
0
-6
-12
-18
-24
-30
Supplied by Midas Components Ltd - 01493 602602 - www.midascomponents.co.uk
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
