SENSORS
ULTRASONIC SENSORS
MA40 SERIES
MA40 SERIES
OPEN TYPE FEATURES
I
I
I
I
Small size: 10 and 16
Combined types
High SPL types
Low voltage/current types
MA40E SERIES
WATERPROOF TYPE FEATURES
40kHz Sensors
I
I
I
I
Waterproof
Many types leaded/not
Short ringing time
Directive models
APPLICATIONS
I
Burglar alarms
I
Object detection devices
I
Distance measurement devices
APPLICATIONS
I
Rear backing sonar
I
Corner sonar
SENSORS
DIMENSIONS: mm
MA40S4R/S
9.9
7.1
12
10
9
5
10
5
10
10
9
MA40B8R/S
MA40S5
9.9
7.1
MA40B7
OPEN
16
16
12
MA407S-1
MA40F14-1B
dia.
18.0
±
0.5
dia.
10.4
MA40E7R/S
3
±
0.1
9
±
0.1
MA40E8-2
14
±
0.3
18
10.4
10.4
8
±
0.3
WATERPROOF
40
±
5
50
±
2 deg.
12.0
±
0.5
9.0
±
1.0
10.0
±
0.3
39.5
±
5
12
10
12
±
0.2
14
±
0.1
10
SPECIFICATIONS
Part Number
MA40E7R/S
MA40S4R/S
MA40B8R/S
MA40B7
MA40E7S-1
MA40S5
Open structure type
Combined use type
–50 ± 4
—
—
70
2550 ± 20%
–40 ~ +85
0.2 ~ 2.5
MA40E8-2
MA40MF14-1B
Construction
Waterproof type
Open structure type
Waterproof type
Using Method
Receiver and Transmitter (Dual use) type
Nominal Frequency (kHz)
40
+4
Overall Sensitivity (dB)
—
—
—
–45
–5
—
Sensitivity
(dB)
–74 min.
–63 ± 3
–63 ± 3
—
–72 min.
Sound Pressure
(dB)
106 min.
120 ± 3
120 ± 3
—
106 min.
Directivity
(deg)
100
80
50
44
75
Capacitance
(pF)
2200 ± 20%
2550 ± 20%
2000 ± 20%
2000 ± 20%
2200 ± 20%
Operating Temp. Range(°C)
–30 ~ +85
–40 ~ +85
–30 ~ +85
Detectable Range
(m)
0.2 ~ 3
0.2 ~ 4
0.2 ~ 6
0.2 ~ 4
0.2 ~ 3
Resolution
(mm)
9
Dimension
(mm)
18 x 12h
9.9 x 7.1h
16 x 12h
16 x 12h
Weight
(g)
4.5
0.7
2.0
2.0
4.5
Allowable Input
85 (40kHz)
20 (40kHz)
40 (40kHz)
100 (40kHz)
100Vpp
Voltage
(Vp-p)
Pulse width 0.4ms
Pulse width 0.4ms Pulse width 0.4ms
Continuous signal Continuous signal
(Rectangular wave)
Interval 100ms
Interval
100ms Interval 100ms
Packaging Quantity (Pcs.)
90
540
150
150
90
Waterproof type
—
—
–85 min.
–87 min.
106 min.
103 min.
75
110 x 50
2800 ± 20%
4000 ± 20%
–30 ~ +85
0.2 ~ 1.5
0.2 ~ 1.5
9.9 x 7.1h
14 x 8h
0.7
2.4
2.4
60 (40kHz)
160 (40kHz)
160Vpp
Pulse width 0.4ms Pulse width 0.8ms Pulse width 0.8ms
Interval 100ms Interval
60ms Interval
60ms
540
80
150
PART NUMBERING SYSTEM
MA40
40kHz
FAMILY
B: 16mm dia.
S: SMALL 10mm dia.
E: WATERPROOF
(– )
(R/S)
R: RECEIVER FOR DUAL TYPE
S: SENDER FOR DUAL TYPE
MODEL
For more detailed information regarding this product line in North America, consult us. To receive additional information on Murata Products call 1-800-831-9172.
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577
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