Components For Continous Operation @ 60°C - Fujitsu D3071-S Technotes

System Monitoring
4.5 Components for continous operation @ 60°C
Operating Conditions:
Circulating air max. 60°C
Usage 24h / 7 days
COM Driver with enhanced
operating temperature range
Quartz with enhanced
operating temperature range
Switched Voltage Regulator
instead of Linear Regulator
supporting 3-Wire FAN
(stable operation within full
temperature range)
All onboard electrolyte
capacitors: Polymer type only
(= solid electrolyte)
a
g
e
TechNotes D307x-S V2.0
Sample picture: Processor Core Voltage Regulator)
Capacitor Endurance Time
Solid Electrolyte:
Fluid Electrolyte:
Page 32 of 56
6-layer PCB for improved
signal quality within full
operating temperature range
High Efficiency Processor
Core Voltage Regulator
(89% @ 65W, 86% @ 95W)
for reduced thermal
dissipation loss
Extra Heatsink
on PCH (Q67)
Note: Power Consumption
PCH  P max ~ 6W
 P idle < 3W
Lx = effective endurance time
Lo = endurance time @ 105°C
(e.g. 2.000hrs)
to = 105°C
tx = capacitor surface temperature
(e.g. 75°C)
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