Datasheet
www.metcal.com 
TECHNICAL BULLETIN MET1013 
SmartHeat
®
 Technology is unique in that it senses the specific thermal demand directly at the solder pad 
and delivers the precise quantity and flow of thermal energy during both flux activation and intermetallic 
bonding phases without any adjustment and calibration. SmartHeat
®
 is radically different and provides 
users the only fully safe and thermally effective soldering lead free solution. 
Conventional technology senses and responds to the tip temperature and not the thermal energy demand 
of the solder joint and users are required to calibrate their systems regularly. In today’s lead free 
environment, the conventional technology is thermally inefficient to produce good quality solder joints 
consistently and leaves process control in the hands of the individual operators. 
Good quality joints are a result of precise quantity and flow of thermal energy and not tip temperature. 
Fixed temperature cartridges and tips offer users a fully safe and thermally effective solution to their lead 
free soldering needs as well as complete process control. Furthermore, fixed temperature cartridges and 
tips can offer better tip life because they can operate at a lower temperature than conventional 
technology. Please speak to our representatives on proper tip selection for your soldering applications. 
Based on historical practices, we acknowledged that some of our customers have specific maximum 
temperature criteria to meet when choosing a tip/cartridge for a particular application. The table below 
provides the max tip temperature for our soldering cartridges/tips: 
Series 
Tips and Cartridges Range / Part Numbers 
Application 
Max tip temperature 
500* 
STTC-5xx, SMTC-5xx 
Temp Sensitive 
575°F / 302°C 
600 
STTC-0xx, SMTC-0xx, UFTC-6xxxx,  
TATC-6xx, PTTC-6xx, SSC-6xxx 
Temp Sensitive 
675°F / 357°C 
700 
STTC-1xx, SMTC-1xx, UFTC-7xxxx, STDC-1xx,  
STDC-7xxL, PTTC-7xx, SSC-7xxx 
FR4/Glass Fiber 
775°F / 412°C 
800 
STTC-8xx, SMTC-8xx, PTTC-8xx 
Ceramic 
905°F + / 485°C + 
650 
PHT-65xxxx 
Temp Sensitive 
690°F / 366°C 
750 
PHT-75xxxx 
FR4/Glass Fiber 
790°F / 421°C 
T 
STP-xxxx, RTP-xxxx, TTP-xxxx,  
STV-xxxx, CTV-xxxx 
Temp Sensitive 
690°F / 366°C 
F 
SFP-xxxx, RFP-xxxx, TFP-xxxx, DFP-xxxx 
SFV-xxxx, CFV-xxxx 
FR4/Glass Fiber 
790°F / 421°C 
C 
SCP-xxxx, RCP-xxxx, TCP-xxxx, DCP-xxxx 
SCV-xxxx, CCV-xxxx 
Ceramic 
880°F / 471°C 
Maximum Temperatures for Original and 
Genuine Metcal Smartheat
®
 Soldering,  
Rework and Desoldering Tips & Cartridges 
Cartridges and Tips 
* 500 Series is only available for STTC & SMTC Series 
Metcal SMARTHEAT Technology 
Conventional Soldering Irons 

