Ultrasonic Transducers
Date:
12/12/08
Dimensions: mm (in.)
Part Number:
255-400ST12-ROX
255-400SR12-ROX
ø10.2±.10
(ø.40±.004)
8.90
(.35)
10
(.393)
Aluminum
Housing
ø12.8±.10
(ø.50±.004)
ø1
(ø.039)
8.4
(.33)
Screen
Sensitivity
(255-400SR12-ROX)
-50
-60
Directivity
(255-400ST12-ROX)
-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
43
44
45
150º
130
120º
120
110
90º
Sound Pressure
(255-400ST12-ROX)
41
42
43
44
45
Ultrasonic Transducers
330º
Electrical Specifications:
•
Center frequency (f0): 40.0KHz ± 1.0KHz
•
SPL @ f0: 255-400ST12-ROX = 115dB (0dB re 0.0002 μ bar)
•
Sensitivity @ f0: 255-400SR12-ROX = -67dB (0dB = 1V/μ bar)
•
Driving voltage: 1V min., 20V max.
•
Bandwidth (-6dB): 2KHz
•
Allowable input power: .2W
•
Capacitance @ 1KHz: 2,400pF ± 20%
Soldering Process:
•
Reflow Temperature: 250°C
Mechanical Specifications:
•
Type: Transmitter: 255-400ST12-ROX
Receiver: 255-400SR12-ROX
•
Operating temperature: -30°C ~ +85°C
•
Storage temperature: -40°C ~ +100°C
Note:
•
RoHS Compliant by Exemption
KT-400243
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.
