Data Sheet

©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FOD852 Rev. 1.5 8
FOD852 — 4-Pin DIP Photodarlington Output Optocoupler
Reflow Profile
Figure 16. Reflow Profile
Profile Feature Pb-Free Assembly Profile
Temperature Min. (Tsmin) 150°C
Temperature Max. (Tsmax) 200°C
Time (t
S
) from (Tsmin to Tsmax) 60–120 seconds
Ramp-up Rate (t
L
to t
P
) 3°C/second max.
Liquidous Temperature (T
L
) 217°C
Time (t
L
) Maintained Above (T
L
) 60–150 seconds
Peak Body Package Temperature 260°C +0°C / –5°C
Time (t
P
) within 5°C of 260°C 30 seconds
Ramp-down Rate (T
P
to T
L
) 6°C/second max.
Time 25°C to Peak Temperature 8 minutes max.
Time (seconds)
Temperature (°C)
Time 25°C to Peak
260
240
220
200
180
160
140
120
100
80
60
40
20
0
T
L
t
s
t
L
t
P
T
P
Tsmax
Tsmin
Preheat Area
Max. Ramp-up Rate = 3°C/S
Max. Ramp-down Rate = 6°C/S
120 240 360