8
c. Choosing the Correct Temperature Series
Each cartridge is specially designed for high power delivery, which means that you can often solder
with a Metcal cartridge at a temperature 100°F (40°C) or more lower than with a conventional
soldering iron. Since Metcal tip cartridges sense thermal loads and respond to them, you need only
approximate the size of the loads you will be working with. Start with a lower temperature, going to a
higher temperature only when necessary.
d. Temperature Series Chart
Application X=Series STTC SMTC UFTC PTTC TATC STDC
High Thermal Sensitivity 500 Series 5 5 5
Moderate Thermal Sensitivity 600 Series 0 0 6 6 0
Moderate Thermal Mass 700 Series 1 1 7 7 1
High Thermal Mass 800 Series 8 8 8 8
Note: Not all temperature series available for some styles. Please consult Metcal’s webpage
(www.okinternational.com) or catalog for a complete listing.
Coil Assembly
Tip
Shaft
H
r
SMTC-X60
LOT 1212
Consult Temperature
Series Chart
Lot Code
Style
Magnetic Shield
Series
CARTRIDGE CONSTRUCTION AND IDENTIFICATION