59.3 Soldering Profile

The following table provides the recommended soldering profile from J-STD-020C.

Table 59-1. Soldering Profile
Profile FeatureGreen Package
Average Ramp-Up Rate (217°C to Peak)3°C/sec. max.
Preheat Temperature 175°C ± 25°C180 sec. max.
Temperature Maintained Above 217°C60 sec. to 150 sec.
Time within 5°C of Actual Peak Temperature20 sec. to 40 sec.
Peak Temperature Range260°C
Ramp-down Rate6°C/sec. max.
Time 25°C to Peak Temperature8 min. max.