Panasonic CT32SC13G Service Manual - Page 16

About lead free solder PbF

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http://tsn.pstc.panasonic.com/viewing/NA/CT-36SL13G/SVC/s0400000000x.html 4 About lead free solder (PbF) TOP PREVIOUS NEXT NOTE Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to lead solder, and PbF will refer to Lead Free Solder. The lead free solder used in our manufacturing process and discussed below is (Sn+Ag+Cu). Thatis Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available. This model uses Pb Free solder in it's manufacture due to environmental conservation issues. For service and repair work, we'd suggest the use of Pb free solder as well, although Pb solder may be used. PCBs manufacturedusing lead free solder will have the "PbF" or a leaf symbol stamped on the back of PCB. CAUTION q Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30 ~ 40 °C) higher. Please use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C). q Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C). If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before applying Pb solder. If thisis not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder. q After applying PbF solder to double layered boards, please check the component side for excess solder which may flow onto the opposite side. http://tsn.pstc.panasonic.com/viewing/NA/CT-36SL13G/SVC/s0400000000x.html (1 of 2)05.12.2008 0:00:49

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4 About lead free solder (PbF)
TOP
PREVIOUS
NEXT
NOTE
Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to lead solder, and PbF will refer to Lead Free Solder.
The lead free solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
Thatis Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For
service and repair work, we’d suggest the use of Pb free solder as well, although Pb solder may be
used.
PCBs manufacturedusing lead free solder will have the “PbF” or a leaf symbol stamped on the
back of PCB.
CAUTION
●
Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~
70 °F (30 ~ 40 °C) higher. Please use a high temperature soldering iron and set it to 700 ± 20 °F
(370 ± 10 °C).
●
Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).
If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder
area before applying Pb solder. If thisis not practical, be sure to heat the Pb free solder until it
melts, before applying Pb solder.
●
After applying PbF solder to double layered boards, please check the component side for excess
solder which may flow onto the opposite side.