Maximum Lead Temperature and Maximum Time for Soldering


Question: What is the maximum lead temperature to be used for Cypress parts for soldering? What is the maximum time for which the part can stay in the temperature range of +5 degC?

Response: Refer the below table for maximum temperature and maximum time for soldering for Cypress Lead and Lead free parts.



Reflow Conditions



Pb-Free Assembly



Sn-Pb Eutectic Assembly



Peak Temperature (Tp)



260 degC



220 degC



235 degC



Time within 5oC of actual Peak Temp (tp)



10 to 20 Seconds



10 to 20 Seconds


10 to 20Seconds