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Número de pieza | EFRRSB40K5 | |
Descripción | (EFRxxxx) Ultrasonic Ceramic Sensors | |
Fabricantes | Panasonic | |
Logotipo | ||
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Ultrasonic Ceramic Sensors
Ultrasonic Ceramic Sensor consisting of a disc type/a
bimorph type piezoelectric ceramic vibrator is a sensor
for transmitting and receiving ultrasonic wave in the air.
omn Features
.cl High output S.P.L.: 130 dB min. (Ex. EFRTGB38K1)
l High sensitivity: Ð45 dB min. (Ex. EFRRUB40K5)
l Excellent temperature and humidity durability
Ul Small in size
t4n Precautions for Safety (See Page 231)
een Explanation of Part Numbers
n Recommended Applications
Ultrasonic wave transmitter and receiver for;
l Proximity switch for burglar alarm system, parking
meter and automatic door opener
l Remote control equipment for such as air conditioner
and garage door opener
l Detection of objects.
l Back alarm system for automobiles and distance
meter.
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1 page Ultrasonic Ceramic Sensors
Precautions for Handling
Because the Ultrasonic Sensors are designed for use in the air, they can not be used under the water or
others liquid.
n Design Engineering Notes
1. Application of DC voltage
DC voltage shall not be applied to the
Ultrasonic Sensors because insulation
resistance may deteriorate.
2. Maximum Input Voltage
The Ultrasonic Sensors shall not be operated
beyond the specified ÒMaximum Input VoltageÓ
in the catalog or the specifications.
3. Characteristics change owing to load
impedance
Center frequency and sensitivity change in
accordance with load impedance.
Therefore, the load characteristics chart shall
be taken into consideration in designing
circuit.
4. In the Design of Transmitting Circuits
It shall be noted that the impedance of the
device is as low as 500 W (approximately) at
the resonance frequency.
n Mounting Notes
1. Installation
It is recommended to hold the Ultrasonic
Sensors by means of rubber] sheets or
cushions for absorption of mechanical stresses
such as shock and vibration.
]Except sulfurated rubber
2. Soldering
Soldering of the lead terminals shall be done
at a position of 2.5 mm or more apart from
bottom plain of the devices.
3. Bending force to the Terminals
Abnormal bending force shall not be applied
to the terminals of the Sensors, otherwise
holding parts of the terminals may be easily
broken, resulting in failures and damages of
the devices.
4. Directivity
Please be cafeful enough in deciding facing
position of the sensor because of directivity.
n Storage Notes
1. Environmental Conditions
The Ultrasonic Sensors shall not be operated
and/or stored under following environmental
conditions;
a) To be exposed directly to water or salt
water.
b) Under conditions of dew formation or frost.
c) Under conditions of corrosive atomosphere
such as hydrogen sulfide, sulfurous acid,
chlorine and ammonia.
2. Long Term Storage
The Ultrasonic Sensors shall not be stored
under severe conditions of high temperature
and high humidity. Store them indoors under
40 ¡C max. and 75 %RH max. Use them within
one year and check the solderbility before
use.
5 Page |
Páginas | Total 5 Páginas | |
PDF Descargar | [ Datasheet EFRRSB40K5.PDF ] |
Número de pieza | Descripción | Fabricantes |
EFRRSB40K5 | (EFRxxxx) Ultrasonic Ceramic Sensors | Panasonic |
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