Safety Information

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Report No.: 50250100 001
TRF No. IEC60950_1F
4.5
TABLE: Thermal requirements
P
Supply voltage (V) ......................
Test A: 90V, 60Hz Horizontal
Test B: 90V, 60Hz Vertical
Test C: 264V,
50Hz Horizontal
Test D: 264V, 50Hz Vertical
¾
Ambient T
min
(
°
C) ........................
--
--
--
--
¾
Ambient T
max
(
°
C) ........................
--
--
--
--
¾
Maximum measured temperature T of
part/at::
T (
°
C)
Allowed T
max
(
°
C)
Location
A
B
C
D
--
Loaded with 12Vdc, 2.5A
Plug holder (inside)
59.4
60.1
54.5
55.3
115
Plastic material under plug contact
72.1
73.2
63.7
65.0
115
Primary lead wire
67.9
69.1
60.1
61.2
105
PCB near NTC1
101.8
102.6
79.3
80.2
130
LF1 winding
89.2
100.7
67.0
68.4
130
PCB near DB1
103.4
104.4
83.3
84.4
130
EC1
97.1
97.6
76.5
77.3
105
L1 winding
98.7
98.9
79.5
79.9
130
EC2 body
94.2
94.4
67.3
66.8
105
CY1 body
93.6
95.2
82.5
82.1
125
T1 winding
100.8
103.3
89.6
90.0
110
T1 core
94.0
94.0
83.8
84.1
110
U1 body
90.8
91.4
79.5
79.9
130
PCB under Q3
99.7
100.4
93.1
93.9
130
EC5 body
96.6
96.6
89.4
89.6
105
PCB under IC1
88.6
88.7
80.2
80.1
130
Enclosure inside above T1
83.3
83.5
73.8
74.2
115
Enclosure inside under T1
104.3
105.5
89.9
91.0
115
Enclosure outside above T1
68.7
68.7
59.5
59.3
95
Enclosure outside under T1
77.2
79.6
70.8
72.0
95
Ambient
27.2
27.2
27.4
27.3
--
Supplementary information:
Note(s):
1. The temperatures were measured under worst norm
al mode defined in 1.2.2.1 and as described in
sub-clause 1.6.2 and at voltages as described above.