Datasheet

7
2SMPP-03 MEMS Gauge Pressure Sensor
2SMPP-03
Safety Precautions
Handling the Sensor
(1) Only air can be used as pressure media on the products
directly. It is prohibited to use pressure media including cor-
rosive gases (e.g. organic solvents gases, sulfur dioxide and
hydrogen sulfide gases), fluid and any other foreign materi-
als.
(2) The products are not water proof. Please keep dry in use.
(3) Don't use the products under dew-condensing conditions.
Frozen fluid on sensor chips may also cause fluctuation of
sensor output and any other troubles.
(4) Don't put foreign materials (e.g. a wire and a pin) into a con-
necting tube. It may cause breakage of pressure sensor
chips or fluctuation of sensor output caused by clogging the
tube.
(5) Use the products within rated pressure. Usage at pressure
out of the range may cause breakage.
(6) Don't use under high-frequency vibration including ultra-
sonic wave.
(7) The products may be broken by static electricity. Charged
materials (e.g. a workbench and a floor) and workers must
provide measures against static electricity, including ground
connection.
(8) Overpowering terminals may deform them and detract their
solder abilities. Don't drop and handle the products roughly.
(9) Don't use the products under humid or dusty condition.
(10) Terminals connection of pressure sensors must be handled
as directed by a connection diagram.
Environmental Condition for Transportation and Storage
(1) It is prohibited to keep the products with corrosive gases
(e.g. organic solvents gases, sulfur dioxide and hydrogen
sulfide gases).
(2) The products are not water proof. Please keep dry during
storage.
(3) An anti-static treatment has been applied to the sleeves.
Please note the following points.
1. Getting wet may remove an anti-static treatment and
eliminate its effect.
2. The sleeve may feel sticky under hot and humid condition
due to the nature of the anti-static treatment.
3. Anti-static has aging degradation. It is prohibited to keep
the sleeves for more than six months. The sleeves are
also non-reusable.
(4) Keep in an appropriate temperature and humidity condition
specified as
Temperature : 5 to 30°C , Humidity : 40 to 60%.
(5) As the lead is plated with silver, there is a possibility of being
tarnished depending on storage condition.
Not guarantee the tarnishing after shipping. Be careful the
method of storage.
(6) Don't keep the products under humid or dusty condition.
Mounting Method
• Use lands on the printed-circuit boards to which the sensor
can be securely fixed.
• Fix pin No.2 on the printed-circuit boards, not fixed causes
fluctuation of sensor output signals.
Soldering Method
• Due to its small size, the thermal capacity of the pressure sen-
sor is low. Therefore, take steps to minimize the effects of
external heat.
• Dip soldering bath: Max. 260°C, within 10 sec.
• Soldering iron: Max. 260°C, within 10 sec.
• Do not heat the case of sensor package, heat only terminal.
• Use a non-corrosive resin type of flux. Since the pressure sen-
sor chip is exposed to the atmosphere, do not allow flux to
enter inside.
Cleaning
• Since the pressure sensor chip is exposed to atmosphere, do
not allow cleaning fluid to enter inside.
• Avoid ultrasonic cleaning since this may cause breaks or dis-
connections in the wiring.
• Do not wash the print circuit board after the pressure sensor is
mounted using detergent containing silicone. Otherwise, the
detergent may remain on the surface of the pressure sensor.
Coating
• Do not coat the pressure sensor when it is mounted to the print
circuit board.
Precautions for Correct Use