Turquoise Stroke Mini Switches (ASQM1)
–6–
AECTB55E 201701-T
CAUTIONS FOR USE
■ Soldering conditions
• The application of excessive heat upon
the switch when soldering can cause
degradation of switch operation.
Therefore, be sure to keep within the
conditions given below.
• Manual soldering: Use soldering irons
(max. 350°C, within 3 seconds) capable
of temperature adjustment. This is to
prevent deterioration due to soldering
heat. Care should be taken not to apply
force to the terminals during soldering.
(More than one second interval is
required to apply heat at each terminal.)
Please consult us if you intend to use a
soldering iron that exceeds 60 W.
■ Mounting
• To secure the wire leads type switch,
please use M3 small screws on a flat
surface and tighten using a maximum
torque of 0.29 N·m.
Be sure to verify the quality under actual
conditions of use because the switch
plastic might be deformed according to
that the kind of the screw (size of screw
head etc.), the diameter of the washer
and the presence of washer. And use of
adhesive lock is recommended to prevent
loosening of the screws. When using an
adhesive, care should be taken not to
invade the adhesive into the switches.
• Be sure to maintain adequate insulating
clearance between each terminal and
ground.
• The positioning of the switch should be
such that direct force is not applied to the
plunger or actuator in its free position.
The operating force to the plunger should
only be applied in a perpendicular
direction.
• When slanted press operation is applied
to pin plunger type switches by an
operation cam, the endurance life may
greatly vary depending on the use of
grease for sliding, operation angle,
operation speed, operation frequency,
press amount of the pin plunger, cam
material, cam shape, cam surface
condition, etc. Therefore fully verification
by using the actual equipment in advance
should be implemented.
• After mounting please make sure no
pulling load will be applied to the switch
terminals.
■ Cautions regarding the circuit
• In order to prevent malfunction in set
devices caused by bounce and chattering
during the ON-OFF switch operation,
please verify the validity of the circuit
under actual operating conditions and
temperature range.
• When switching inductive loads (relays,
solenoids, buzzers, etc.), it is
recommended that contact protection
element such as diode, varistor, etc., is
introduced to prevent contact failure
caused by electric discharge.
■ Please verify under actual
conditions.
• Please be sure to conduct quality
verification under actual operating
conditions in order to increase reliability
during actual use.
■ Selection of switch
• Please make your selection so that
there will be no problems even if the
operating characteristics vary up to ±20%
from the standard values.
■ Oil-proof and chemical-proof
characteristics
• Do not use alcohol-based solvents.
• The rubber cap swells when exposed to
oil and chemicals. The extent of swelling
will vary widely depending on the type
and amount of oil and chemicals.
Check with the actual oil or chemicals
used. In particular, be aware that solvents
such as freon, chlorine, toluene, etc.,
cannot be used.
■ Operation environment
• Although continuous operation of the
switch is possible within the range of
ambient temperature (humidity), as the
humidity range differs depending on the
ambient temperature, the humidity range
indicated below should be used.
Continuous use near the limit of the
range should be avoided.
This temperature-humidity range does
not guarantee permanent performance.
■ Others
• Do not handle the switch in a way that
may cause damage to the sealing rubber
cap.
• Please remember that this switch
cannot be used under water. Also,
pleased be warned that switching and
sudden temperature changes with the
presence of water droplets can cause
seepage into the unit.
• Keep away from environments where
silicon based adhesives, oil or grease are
present as faulty contacts may result
from silicon oxide. Do not use in areas
where flammable or explosive gases from
gasoline and thinner, etc., may be
present.
• When using the lever type, please be
careful not to apply unreasonable load
from the reverse or lateral directions of
operation.
• Do not exceed the total travel position
(TTP) and press the actuator. This could
cause operation failure.
Also, when switching at high speed or
under shock even within the operation
limit, the working life may decrease.
Therefore, please be sure to verify the
quality under actual conditions of use.
• Please make considerations so that the
switch does not become the stopper for
the moving part.
• Do not use the switch which was
dropped by mistakes when handling. If it
is used, abnormal operation
characteristics and sealing performance
may occur.
• In case of applying coating to movable
parts (actuator, plunger, etc.), the quality
of the product is not guaranteed because
it may cause a product failure.
• In case of cleaning a switch, the quality
of the product is not guaranteed because
it may cause a product failure.
• Do not apply ultrasonic vibrations and
high frequency vibration to a switch
because it may have an impact on the
characteristics of the switch.
• Please do not constantly apply a tensile
load to wire leads when fixing them.
Acceptable range
(Avoid
condensation when
used at temperatures
higher than 0°C)
(Avoid freezing when
used at temperatures
lower than 0°C)
95
50
5
–40 0 +85+40
Temperature, °C
Humidity, %R.H.
