Table 3.9 Expectancy Life (LGA75A-
O
)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Load factor
Io
[
75%
75%<Io
[
100%
A
Convection
Ta = 40
C
or less
6years
6years
Ta = 50
C
5years
3years
B , C
Convection
Ta = 30
C
or less
6years
6years
Ta = 40
C
5years
3years
D
Convection
Ta = 25
C
or less
6years
6years
Ta = 35
C
5years
3years
E
Convection
Ta = 20
C
or less
6years
6years
Ta = 30
C
5years
3years
A,B,C,D,E,F Forced air Ta = 60
C
5years
3years
Table 3.10 Expectancy Life (LGA100A-
O
)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Load factor
Io
[
75%
75%<Io
[
100%
A
Convection
Ta = 40
C
or less
6years
6years
Ta = 50
C
5years
3years
B
Convection
Ta = 30
C
or less
6years
6years
Ta = 40
C
5years
3years
C , E
Convection
Ta = 25
C
or less
6years
6years
Ta = 35
C
5years
3years
D
Convection Ta = 30
C
or less
6years
3years
A,B,C,D,E,F Forced air Ta = 60
C
5years
3years
Table 3.11 Expectancy Life (LGA150A-
O
)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Load factor
Io
[
75%
75%<Io
[
100%
A
Convection
Ta = 30
C
or less
6years
6years
Ta = 40
C
5years
3years
B , C
Convection
Ta = 20
C
or less
6years
6years
Ta = 30
C
5years
3years
D , E
Convection Ta = 20
C
or less
6years
3years
A,B,C,D,E,F Forced air Ta = 50
C
5years
3years
Table 3.12 Expectancy Life (LGA240A-
O
)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Load factor
Io
[
75%
75%<Io
[
100%
A
Convection
Ta = 30
C
or less
6years
6years
Ta = 40
C
5years
3years
B , C
Convection
Ta = 20
C
or less
6years
6years
Ta = 30
C
5years
3years
D Convection Ta = 20
C
or less
6years
3years
E
Convection Ta = 15
C
or less
6years
3years
A,B,C,D,E,F Forced air Ta = 50
C
5years
3years
¡
Warranty
Table 3.13 Warranty (LGA50A-3R3-Y, -5, -12, -15)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Load factor
Io
[
75%
75%<Io
[
100%
A
Convection
Ta = 40
C
or less
5years
5years
Ta = 50
C
5years
3years
B , C , D
Convection
Ta = 30
C
or less
5years
5years
Ta = 40
C
5years
3years
E
Convection
Ta = 20
C
or less
5years
5years
Ta = 30
C
5years
3years
A,B,C,D,E,F Forced air Ta = 60
C
5years
3years
3.4 Expectancy life and warranty
¡
Expectancy Life.
Table 3.7 Expectancy Life (LGA50A-3R3-Y, -5, -12, -15)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Load factor
Io
[
75%
75%<Io
[
100%
A
Convection
Ta = 40
C
or less
6years
6years
Ta = 50
C
5years
3years
B , C , D
Convection
Ta = 30
C
or less
6years
6years
Ta = 40
C
5years
3years
E
Convection
Ta = 20
C
or less
6years
6years
Ta = 30
C
5years
3years
A,B,C,D,E,F Forced air Ta = 60
C
5years
3years
Table 3.8 Expectancy Life (LGA50A-24, -48)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Load factor
Io
[
75%
75%<Io
[
100%
A
Convection
Ta = 35
C
or less
6years
6years
Ta = 45
C
5years
3years
B , C , D
Convection
Ta = 30
C
or less
6years
6years
Ta = 40
C
5years
3years
E
Convection
Ta = 20
C
or less
6years
6years
Ta = 30
C
5years
3years
A,B,C,D,E,F Forced air Ta = 50
C
5years
3years
3.3 Mounting screw
¡
The mounting screw should be M3. The hatched area shows the
allowance of metal parts for mounting.
¡
If metallic fi ttings are used on the component side of the board,
ensure there is no contact with surface mounted components.
*
1 Recommendation to electrically connect FG to metal chassis for
reducing noise.
*
2 LGA240A only
Refer to External view for location
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LGA-18
LGA
Fig.3.16 Allowance of metal parts for mounting
8
90mm
mm
1
FG
2
CN1
8mm
8m
m
8m
m
8m
m
8mm
8mm
8mm
8m
m
8m
m
*
*
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2015/06/19 14:42:27
2015/06/19 14:42:27