MOUNTING AND SOLDERING
In order to reach a good solderability, we suggest these rules are followed:
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Landing area
Land dimensions
Size
A
B
C
D
1206
2.0
1.3
2.4
5.0
1210
3.0
1.3
2.4
5.0
1812
4.0
1.5
3.5
6.5
2220
5.9
1.9
4.5
8.3
2824
7.0
2.5
5.7
10.7
4030
8.6
3.0
8.0
14.0
5040
11.2
3.5
10.3
17.3
6054
14.6
3.6
12.6
19.8
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Solder paste & quantity
To obtain the best performance we advise to use a solder paste alloy TIN (Sn) - LEAD (Pb) - SILVER (Ag) (typical
values 62% - 36% - 2%) of no clean type. The thickness of solder paste is also important, and from our experience we
suggest the following rule:
Size
Thickness [mm]
from 12.06 to 22.20
0.1to0.15
from 28.24 to 60.54
0.1to0.20
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Thermal profile
200°C
preheating
time
τ1
τ2
Tmax
Temperature
Preheating: Temperature = 150 to 160°C
Time
= 3 min
Peak:
Max time above 200°C
40 to 50 s and
τ1 τ2
Tmax: from 12.06 to 22.20 Tmax = 225°C
from 28.24 to 60.54 Tmax = 235°C
MOISTURE BARRIER BAG (MBB)
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Materials
The MBB is made by three layers: PET, Aluminium and PE for a total thickness of 105
μm
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Moisture resistance
From size 12.06 to 60.54 Arcotronics has tested reels inside this MBB in different extreme conditions
(i.e.: T = 60°C R.H. = 95% 56 days).
The result is: THE CAPACITANCE DOESN’T PRESENT ANY SIGNIFICATIVE CHANGE.
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Use
After the opening of the MBB the permanence at a temperature
30°C and R.H.60% is allowed for a maximum lapse
of time of 4 weeks.
For longer times and/or higher T and R.H. values, it is absolutely indispensable to protect the component against R.H.
If the reel is partially used, Arcotronics recommend the re-use of the same MBB or a storage in areas with controlled
temperature and humidity.
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Storage
The minimum MBB shelf life is 12 months.
LDE Series
PEN -- PET H.T.
C
D
A
B
Example for land dimensions
7
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