RECEIVER, ULTRASONIC, 32.8KHZ, 25MM

328ER250

Manufacturer Part Number328ER250
DescriptionRECEIVER, ULTRASONIC, 32.8KHZ, 25MM
ManufacturerPROWAVE
328ER250 datasheet
 

Specifications of 328ER250

Sensor TypeReceiverSensitivity-67dB
Beam Divergence33°External Diameter25mm
Operating Temperature Range-30°C To +80°CSvhcNo SVHC (18-Jun-2010)
Angle33°Frequency32.8kHz
Capacitance2400pFRohs CompliantYes
External Length / Height12mmLead Free Status / RoHS StatusLead free / RoHS Compliant
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Air Ultrasonic Ceramic Transducers
Specification
328ET250
328ER250
Center Frequency
Bandwidth (-6dB) 328ET250
328ER250
Transmitting Sound Pressure
Level
at 32.8Khz; 0dB re 0.0002µbar
per 10Vrms at 30cm
Receiving Sensitivity
at 32.8Khz 0dB = 1 volt/µbar
Capacitance at 1Khz ±20%
Max. Driving Voltage (cont.)
-6dB
Total Beam Angle
Operation Temperature
Storage Temperature
All specification taken typical at 25°C
Closer frequency tolerance can be supplied
upon request.
Model available:
1
328ET/R250
Aluminum Housing
2
328ET/R25B
Black Alum. Housing
3
328ET/R25S
SUS 316 Housing
Dimensions:
Impedance/Phase Angle vs. Frequency
Tested under 1Vrms Oscillation Level
328ER250 Impedance
328ER250 Phase
328ET250 Impedance
328ET250 Phase
100000
Transmitter
10000
Receiver
32.8±1.0Khz
1000
1.0Khz
100
28
1.0Khz
113dB min.
(107dB min.
Sensitivity/Sound Pressure Level
SUS 316)
Tested under 10Vrms @30cm
-50
-67dB min.
-55
(-70dB min.
-60
SUS 316)
-65
-70
2400 pF
-75
-80
-85
20Vrms
-90
28
29
33° typical
-30 to 80°C
-40 to 85°C
Beam Angle
328ET/R250
dimensions are in mm
29
30
31
32
33
34
35
36
37
Frequency (Khz)
30
31
32
33
34
35
36
37
Frequency (Khz)
: Tested at 32.8Khz frequency
0
330
30
0
-6
300
60
-12
-18
-24
-30
270
90
240
120
210
150
180
90
75
60
45
30
15
0
-15
-30
-45
-60
-75
-90
38
130
125
120
115
110
105
100
95
90
38

328ER250 Summary of contents

  • Page 1

    ... Model available: 1 328ET/R250 Aluminum Housing 2 328ET/R25B Black Alum. Housing 3 328ET/R25S SUS 316 Housing Dimensions: Impedance/Phase Angle vs. Frequency Tested under 1Vrms Oscillation Level 328ER250 Impedance 328ER250 Phase 328ET250 Impedance 328ET250 Phase 100000 Transmitter 10000 Receiver 32.8±1.0Khz 1000 1.0Khz 100 28 1.0Khz 113dB min. ...

  • Page 2

    ... Air Ultrasonic Ceramic Transducers 328ER250 Receiver Sensitivity Variation vs. Loaded Resistor -40 -45 -50 -55 -60 -65 -70 -75 -80 1K 3.9K 10K Loaded Resistor (Ohm) Center Frequency Shift vs. Loaded Resistor 5.0 4.0 3.0 2.0 1.0 0.0 -1.0 -2.0 -3.0 -4.0 -5.0 1K 3.9K 10K Loaded Resistor (Ohm) Sensitivity Variation vs ...