Lead-Free Solder
CAUTION-2
To conserve global environment, lead-free solder is used in this product.
Be sure to read the following before soldering.
Be sure to wear protective goggles so that no solder smoke or scattered solder enters the eye.
Lead-free solder may scatter at high temperatures (600°C).
Caution
Indication of lead-free solder used
"
F
"
is printed on either surface of circuit boards for which
lead-free solder is used.
Characteristics of lead-free solder
The following shows the characteristics of lead-free solder
used in this product:
Composition of alloy (wt%):
Sn-3.0Ag-0.5Cu
Melting temperature:
Approx. 220°C
Solder for servicing
It is recommended that you use lead-free solder
whose characteristics are the same as that used
in product.
It is also possible to service using lead solder. However,
if lead solder is used for servicing, some cautions are
necessary. (Neglecting these cautions could decrease
strength, causing malfunctions.)
Cautions when using lead solder
When replacing components, remove the lead-free
solder previously used for soldered points as far as
possible.
For additional soldering, melt lead-free solder
completely and mix well with lead solder.
[Do not perform repair using the bare soldering iron
tip (without adding solder)].
Soldering iron for servicing
It is recommended that you use a soldering iron
whose temperature at its tip can be set (with
thermal control function).
Lead-free solder melts at a temperature 30° C - 40° C
higher than lead solder. Therefore, workability will
decrease unless you use a soldering iron whose
temperature is high, whose temperature at its tip does not
change greatly (heat capacity is large), and that can be set
to match the work points.
Recommended soldering iron
With thermal control function (temperature setting
range: 320° C - 450° C)
Recommended tip temperatures for
different work points
Recommended tip
temperature
320° C ± 30° C
380° C ± 30° C
420° C ± 30° C
Work point
Circuit board with
surface-mounted (chip)
parts
Circuit board without
surface-mounted (chip)
parts
Chassis, metal shield
