Ultrasonic Transducers
ø11.94
(ø.47)
11.94
(.47)
10
(.394)
10
(.394)
ø.99
(ø.039)
Date:
10/24/08
Dimensions: mm (in.)
Part Number:
255-400ST16-ROX
255-400SR16-ROX
Screen
Directivity for 255-400ST16-ROX
0°
330°
300°
30°
-50
60°
dB
-60
-70
-80
120°
150°
-90
-100
ø16.20
(ø.638)
Sensitivity For 255-400SR16-ROX
270°
-40
-30
90°
240°
210°
-20
-10
-0
180°
35 36 37 38 39 40 41 42 43 44 45
KHz
Sound Pressure for 255-400ST16-ROX
Ultrasonic Transducers
SPL Variation vs. Driving Voltage
125
120
115
110
105
100
95
90
85
0
130
120
dB
110
100
90
80
35 36 37 38 39 40 41 42 43 44 45
KHz
SPL (dB)
2
4
6
8 10 12 14 16 18 20 22 24 26 28 30
Vrms
Impedance/Phase Angle vs. Frequency
Tested under 1Vrms Oscillation Level
100000
Impedance (Ohm)
255-400SR16-ROX
Impedance
Phase
90
75
60
45
30
15
0
-15
-30
-45
-60
-75
-90
42 43 44 45
Phase
255-400ST16-ROX
Impedance
Sensitivity/Sound Pressure Level
Tested under 10Vrms @30cm
-50
-55
-60
-65
-70
-75
-80
-85
-90
35 36
37
38
39 40 41 42
Frequency (Khz)
SPL
Sensitivity
130
125
120
115
110
105
100
95
90
43 44 45
Sensitivity (dB)
10000
1000
100
35 36
37
38
39
40
41
Frequency (Khz)
Electrical Specifications:
Mechanical Specifications:
•
Center Frequency (f0): 40.0KHz±1.0KHz
•
Type: Transmitter - 255-400ST16-ROX;
•
SPL @ f0 for 255-400ST16-ROX: 119dB (0dB re 0.0002μ bar)
Receiver - 255-400SR16-ROX
•
Sensitivity @ f0 for 255-400SR16-ROX: -65dB (0dB=1V/μ bar)
•
Operating Temperature: -30°C ~ +85°C
•
Bandwidth (-6dB): 255-400ST16-ROX - 2KHz; 255-400SR16-ROX - 2.5KHz
•
Storage Temperature: -40°C ~ +100°C
•
Allowable Input Power: 0.2W
Note:
•
Capacitance: 2,400pF±20% @ 1KHz
•
RoHS Compliant by Exemption
KT-400244
Available from Mouser Electronics
Downloaded from
Elcodis.com
electronic components distributor
www.mouser.com
(800) 346-6873
Specifications are subject to change without notice. No liability or warranty implied by this information. Environmental compliance based on producer documentation.
Phase Angle (Degree)
SPL (dB)
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