LW L283
Lötbedingungen
Vorbehandlung nach JEDEC Level 2
Soldering Conditions
IR-Reflow Lötprofil für bleifreies Löten
Preconditioning acc. to JEDEC Level 2
(nach J-STD-020B)
IR Reflow Soldering Profile for lead free soldering (acc. to J-STD-020B)
OHLA0687
+0 ˚C
300
Maximum Solder Profile
Recommended Solder Profile
˚C
260 ˚C
Minimum Solder Profile
-5 ˚C
255 ˚C
240 ˚C
250
T
±5 ˚C
245 ˚C
235 ˚C
+5 ˚C
-0 ˚C
217 ˚C
10 s min
200
150
100
50
30 s max
Ramp Down
6 K/s (max)
100 s max
120 s max
Ramp Up
3 K/s (max)
25 ˚C
0
0
50
100
150
200
250
s
300
t
Wellenlöten (TTW)
TTW Soldering
(nach CECC 00802)
(acc. to CECC 00802)
OHLY0598
300
C
10 s
Normalkurve
standard curve
250
200
150
100
50
T
235 C ... 260 C
Grenzkurven
limit curves
2. Welle
2. wave
1. Welle
1. wave
ca 200 K/s
2 K/s
5 K/s
100 C ... 130 C
Zwangskühlung
forced cooling
2 K/s
0
0
50
100
150
200
s
250
t
2007-08-10
11
OSRAM [ OSRAM GMBH ]
