Datasheet

SFH 4253R
9
Version 1.5 | 2018-06-26
Pro󰘰le Feature Symbol Pb-Free (SnAgCu) Assembly Unit
Minimum Recommendation Maximum
Ramp-up rate to preheat
*)
25 °C to 150 °C
2 3 K/s
Time t
S
T
Smin
to T
Smax
t
S
60 100 120 s
Ramp-up rate to peak
*)
T
Smax
to T
P
2 3 K/s
Liquidus temperature T
L
217 °C
Time above liquidus temperature t
L
80 100 s
Peak temperature T
P
245 260 °C
Time within 5 °C of the speci󰘰ed peak
temperature T
P
- 5 K
t
P
10 20 30 s
Ramp-down rate*
T
P
to 100 °C
3 6 K/s
Time
25 °C to T
P
480 s
All temperatures refer to the center of the package, measured on the top of the component
* slope calculation DT/Dt: Dt max. 5 s; ful󰘰llment for the whole T-range
Taping
8)
OHAY2272
1.5 (0.059)
2 (0.079)
4 (0.157)
3 (0.118) 4 (0.157)
5.6 (0.220)
5.5 (0.217)
1.75 (0.069)
12 (0.472)
Cathode/Collector Marking