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Electrical Operation
Use the Switch within the rated voltage and current ranges, other-
wise the Switch may have a shortened life expectancy, radiate heat,
or burn out. This particularly applies to the instantaneous voltages
and currents when switching.
Soldering
RoHS Compliant
The "RoHS Compliant" designation indicates that the listed models
do not contain the six hazardous substances covered by the RoHS
Directive.
Reference:
The following standards are used to determine compliance for the six
Soldering Precautions
1. Before any kind of soldering, test to confirm that soldering can
be performed properly. Otherwise the Switch may be
deformed by the soldering heat depending on the type of
PCB, pattern, or lands of the PCB.
2. Do not solder the Switch more than twice, including rectifica-
tion soldering. Wait for at least five minutes between the first
and second soldering to allow the temperature to return to
substances.
Lead:
Mercury:
Cadmium:
Hexavalent chromium:
PBB:
PBDE:
1,000 ppm max.
1,000 ppm max.
100 ppm max.
1,000 ppm max.
1,000 ppm max.
1,000 ppm max.
normal. Continuous soldering may cause the casing to melt or
deteriorate the Switch characteristics.
Reflow Soldering Conditions
Firmly attach a thermocouple to the surface of the terminals with sol-
Packaging Specifications
The packaging specifications for B3SL Switches in embossed taping
are given below.
1.5
der that has a high melting point and set the reflow oven so that the
peak temperature of the terminals is 260 ° C or less.
The following figure shows the temperature profile.
B3SL-1002P
La b el
(22)
Tape dra w ing
direction
+0.1
0
dia.
2
12 ± 0.1
4 ± 0.1
1.75
(3.7)
Temperat u re
( ° C)
7.5
16
260 max.
3 8 0 ± 2
dia.
220
1 8 0
Reel (Material: PS)
B3SL-1022P
13 dia.
Tape drawing direction
1.5
150
Preheating time
Main
heating
time
(22)
La b el
Tape dra w ing
direction
+0.1
0
dia.
2
12 ± 0.1
4 ± 0.1
1.75
(5.3)
7.5
Manual Soldering
60 to 120
60 max.
Time (s)
3 8 0 ± 2
dia.
13 dia.
16
1. Soldering temperature: 350 ° C max. at the tip of the soldering
iron
2. Soldering time: 3 s max. for a 1.6-mm thick, single-side PCB
Washing
Standard Switches are not sealed, and cannot be washed.
Doing so will cause the washing agent, together with flux or dust
Reel (Material: PS)
Standards
Package
Heat resistance
Tape drawing direction
Conforms to JIS.
2,000 Switches (B3SL-1002P)
1,400 Switches (B3SL-1022P)
60 ° C for 24 hours (without deformation)
particles on the PCB, to enter the Switch, resulting in malfunction.
Applicable Printed Circuit Board
The Switch is designed for a 1.6-mm thick, single-side PCB.
Using PCBs with a different thickness or using double-sided,
through-hole PCBs may result in loose mounting, improper insertion,
or poor heat resistance in soldering. These effects will occur,
depending on the type of holes and patterns of the PCB. Therefore, it
is recommended that a verification test is conducted before use.
Common Precautions
Be sure to read the precautions common to all Tactile Switches, con-
tained in the Technical User’s Guide, “Tactile Switches, Technical
Information” for correct use.
Middle Stroke Tactile Switch
B3SL
253
发布紧急采购，3分钟左右您将得到回复。
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