Ultrasonic Transducers
Part Number:
255-400ET18
255-400ER18
Date:
7/26/05
Dimensions: mm (In.)
Aluminum
Case
17.50
(.689)
ø18
(ø.709)
Diaphragm
13.48
(.531)
10±.304
(.394±.012)
ø1.19x2
(ø.047x.079)
Ultrasonic Transducers Page 1 of 2
Transmitter
Directivity
330º
300º
0º
30º
60º
270º
-40º
-30º
90º
240º
210º
-20º
-10º
-0º
180º
150º
120º
KT-400049
Electrical Specifications:
•
Center frequency (f0): 40.0KHz ± 1.0KHz
•
SPL @ f0: 115dB (0dB re 0.0002 µ bar)
•
Sensitivity @ f0: -70dB (0dB = 1V/µ bar)
•
Bandwidth: 1.5KHz (-6dB)
•
Capacitance @ 1KHz: 2,600pF ± 20%
•
Allowable input power: 0.2W
•
Input voltage: 20V max.
Mechanical Specifications:
•
Type: Transmitter: 255-400ET18
Receiver: 255-400ER18
•
Operating temperature: -30°C ~ +80°C
•
Storage temperature: -40°C ~ +100°C
Material:
•
Water Resistant
Available from Mouser Electronics
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.
Ultrasonic Transducers
Part Number:
255-400ET18
255-400ER18
Sensitivity
(255-400ER18)
-50
-60
-70
dB
-80
Date:
7/26/05
Ultrasonic Transducers (Page 2 of 2
-90
-100
35
36
37
38
39
40
KHz
41
42
43
44
45
Sound Pressure Level
(255-400ET18)
130
120
110
dB
100
90
80
35
36
37
38
39
40
KHz
41
42
43
44
45
Impedance & Phase Angle vs. Frequency
1E+05
90
45
1E+04
Ohm
1E+03
-45
0
1E+02
35
36
37
38
39
40
KHz
41
42
43
44
45
-90
Available from Mouser Electronics
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.
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