Ultrasonic Transducers
Date:
12-01-08
Dimensions: mm (in.)
Part Number:
255-400ST12
255-400SR12
ø10
(ø.393)
10
(.393)
10
(.393)
12.7
(.50)
Screen
Sensitivity
(255-400SR12)
-50
-60
Directivity
(255-400ST12)
-70
0º
-80
30º
-90
-100
300º
60º
35
36
37
38
39
40
KHz
270º
-40
-30
240º
-20
-10
210º
-0
180º
100
90
80
35
36
37
38
39
40
KHz
41
42
150º
130
120º
120
110
90º
Sound Pressure
(255-400ST12)
41
42
8.4 (.33)
1 (.039)
Ultrasonic Transducers
330º
43
44
45
43
44
45
KT-400050
Electrical Specifications:
•
Center frequency (f0): 40.0KHz ± 1.0KHz
•
SPL @ f0: 255-400ST12 = 115dB (0dB re 0.0002 μ bar)
•
Sensitivity @ f0: 255-400SR12 = -67dB (0dB = 1V/μ bar)
•
Driving voltage: 1V min., 20V max.
•
Bandwidth (-6dB): 2KHz
Mechanical Specifications:
•
Type: Transmitter: 255-400ST12
Receiver: 255-400SR12
•
Operating temperature: -40°C ~ +85°C
•
Storage temperature: -40°C ~ +85°C
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.
