
MOUNTING AND SOLDERING
In order to reach a good solderability, we suggest these rules are followed:
S
Landing area
Land dimensions
Size
1206
1210
1812
2220
2824
4030
5040
6054
A
2.0
3.0
4.0
5.9
7.0
8.6
11.2
14.6
B
1.3
1.3
1.5
1.9
2.5
3.0
3.5
3.6
C
2.4
2.4
3.5
4.5
5.7
8.0
10.3
12.6
D
5.0
5.0
6.5
8.3
10.7
14.0
17.3
19.8
S
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
from 12.06 to 22.20
from 28.24 to 60.54
Thickness [mm]
0.1 to 0.15
0.1 to 0.20
S
Thermal profile
200°C
preheating
time
τ
1
τ
2
T
max
Temperature
Preheating
: Temperature = 150 to 160°C
Time
= 3 min
Peak
:
Max time above 200°C
40 to 50 s and
τ
1
τ
2
T
max
:
from 12.06 to 22.20 T
max
= 225°C
from 28.24 to 60.54 T
max
= 235°C
MOISTURE BARRIER BAG (MBB)
Materials
The MBB is made by three layers: PET, Aluminium and PE for a total thickness of 105
μ
m
S
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.
S
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.
S
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.
Storage
The minimum MBB shelf life is 12 months.
S
LDE Series
PEN -- PET H.T.
C
D
A
B
Example for land dimensions
7