About Lead Free Solder (Pbf: Pb Free); Suggested Pbf Solder - Panasonic KX-TS550MEB Service Manual

1 ABOUT LEAD FREE SOLDER (PbF: Pb free)

Note:
In the information below, Pb, the symbol for lead in the
periodic table of elements, will refer to standard solder or
solder that contains lead.
We will use PbF solder when discussing the lead free
solder used in our manufacturing process which is made
from Tin (Sn), Silver (Ag), and Copper (Cu).
This model, and others like it, manufactured using lead free
solder will have PbF stamped on the PCB. For service and
repair work we suggest using the same type of solder.
1.1.

Suggested PbF Solder

There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper
(Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu) or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the manufac
turer's specific instructions for the melting points of their products and any precautions for using their product with other
materials.
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.
Caution
• PbF solder has a melting point that is 50°F ~ 70° F
(30°C ~ 40°C) higher than Pb solder. Please use a
soldering iron with temperature control and adjust it to
700°F ± 20° F (370°C ± 10°C).
• Exercise care while using higher temperature soldering
irons.:
Do not heat the PCB for too long time in order to prevent
solder splash or damage to the PCB.
• PbF solder will tend to splash if it is heated much higher
than its melting point, approximately 1100°F (600°C).
• When applying PbF solder to double layered boards,
please check the component side for excess which may
flow onto the opposite side (See the figure below).
3
KX-TS550MEB / KX-TS550MEW