Temperature limitation of each components surface
If you need to calculate more in detail to choose suitable fan in your application, please see the information below.
・
Please use each temperature range of the surface of each component.
・
Please test under your worst/most severe condition. We recommend you to use Type K thermocouple device.
* Please make sure to attach firmly with adhesive when you measure these temp.
・
Please make sure 1) No air flow condition 2) Measure its highest heat spot
3) Operate PSU under all the temperature range and make sure it works stably.
Measured components
*Refer to the following drawing to specify each component location.
< Image from the top view >
MOS-FET
Diode
MOS-FET
Poly Switch
Thyristor
3-3
Max Temp (degree C)
100
110
115
P/N
Component name
C101
X Capacitor
Bridge Diode
Common mode choke
105
85
115
115
105
85
110
110
100
PC501
Photo Coupler
Poly Switch
D501
Secondary side Diode
115
T301
Transformer (Primary side coil)
T301
Transformer (Secondary side coil)
Q301
TH301
Q101
D102
SCR101
TH101
L101
D101
Q101
D102
SCR101
D101
PC501
D501
Q301
C101
L101
T301
(secondary coil )
TH101
T301
(primary coil)
TH301
