Seagate Cheetah 9LP ST39102FC, Product Manual

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30 Cheetah 9LP FC Product Manual, Rev. C
PCB and HDA temperatures
To obtain the maximum temperature for each of the reference components listed, add 20°C to the 1,000,000
hour MTBF case temperatures. The maximum allowable HDA case temperature is 60°C (see Figure 9). Opera-
tion of the drive at the maximum case temperature is intended for short time periods only. Continuous opera-
tion at the elevated temperatures will reduce product reliability.
Figure 8. PCBA temperature measurement locations
Figure 9. HDA case temperature measurement location
Component Reference
MTBF
1,000,000 hours at
30°C ambient temperature
(°C)
HDA Figure 9 45
Processor 1 45
A/D Demod 2 58
FC Interface 3 62
Motor driver 4 47
3
2
1 4
HDA Temp.
Check Point
.5"