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参数资料
| 型号： | D2F-L-T |
| 元件分类： | 开关 |
| 英文描述： | SNAP ACTING/LIMIT SWITCH, SPDT, MOMENTARY, 2A, 30VDC, 0.55mm, THROUGH HOLE-STRAIGHT |
| 封装： | ROHS COMPLIANT |
| 文件页数： | 3/12页 |
| 文件大小： | 277K |
| 代理商： | D2F-L-T |
General Information
General Information
30
terminals, otherwise the terminal may be deformed or the housing
may be damaged.
Wiring Work
When wiring a switch, check the insulation distance between the
switch and the mounting plate. If the insulation distance is insuffi-
cient, use an insulation guard or separator. Be particularly careful
when mounting a switch to metal.
Use wire sizes suitable for the applied voltage and carrying current.
Do not wire a switch while power is being supplied.
Using Separators
If providing sufficient insulation distance is a problem or there are
metal components or copper wire near a switch, use a switch with
an insulation guard or use a separator (order separately) to provide
sufficient insulation distance.
Separator for SS
j
Separator for V
j
Separator
Separator for Z
j
Separator
Soldering Precautions
When soldering by hand, place the terminal horizontal to the
ground, use a soldering iron with a suitable heat capacity and a suit-
able amount of solder, and complete soldering quickly. Prevent flux
from entering a switch by exhausting flux gas with an exhaust fan
and by avoiding the contact of the tip of the soldering iron and the
switch body. Flux gas inside a switch may cause contact failure. Do
not apply any force to the terminal or wire immediately after solder-
ing.
Tip of soldering
iron
Incorrect
Correct
When soldering automatically, adjust the amount of solder so that
flux does not float onto the top of PCB. If flux enters the switch, it can
cause contact failure.
Operation and Storage Environment
Handling
Do not apply oil, grease, or other lubricants to the sliding parts of a
switch. The intrusion of oil, grease, or other lubricants into the inter-
nal part may cause operating failure or contact failure.
Operating Environment
A general switch is not water-resistant. Protect the switch appropri-
ately when using the switch in places with water or oil spray.
Do not use a switch under the condition where vibration or shock is
continuously applied to the switch. If continuous vibration or shock
is applied to a switch, contact failure, malfunction, or decrease in du-
rability may be caused by abrasive powder generated from the inter-
nal parts. If excessive vibration or shock is applied to a switch, the
contacts may malfunction, stick, or be damaged.
Mount a switch in the location where vibration and shock is not ap-
plied to the switch and in the direction where they do not resonate.
Do not use a switch in the atmosphere of corrosive gas, such as
sulfuric gas (H2S or SO2), ammonium gas (NH3), nitric gas (HNO3),
or chlorine gas (Cl2), or in the atmosphere of high temperature and
humidity. Otherwise, contact failure or corrosion damage may re-
sult.
If a switch is used in the atmosphere of silicon gas, arc energy may
attract silicon dioxide (SiO2) to the contacts and contact failure may
result. If there is silicon oil, silicon sealant, a wire covered with sili-
con, or any other silicon-based product near the switch, attach a
contact protective circuit to suppress the arcing of the switch or elim-
inate the source of silicon gas generation. Even for a sealed switch,
it may not be possible to prevent all of the gas from penetrating the
seal rubber, and contact failure may result.
Be sure to use a switch at a temperature and humidity within the
specified ranges. If a switch is exposed to radical temperature chan-
ges or intense heat, the characteristics of the switch may change.
Separate the switch as far as possible from sources of heat to elimi-
nate the influence.
Storage Environment
When storing a switch, consider countermeasures (e.g., storing in a
plastic bag) to prevent discoloration resulting from sulfidization of
terminals (silver-plated). Make sure that the location is free of corro-
sive gas or dust with no high temperature or humidity. It is recom-
mended that a switch be inspected before use if it is stored for three
months or more after the production, depending on the location.
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