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Barracuda 36FC Product Manual, Rev. B
Table 2:
PCBA and HDA temperatures
Maximum allowable
Items in
case temperature (
Figure 6
operating
HDA [2]
60
1
67
2
73
3
87
4
65
Notes.
[1]
Section 8.4.1 describes the air-flow patterns used when generating the 1 million hours MTBF guide-
lines in column 2. Air flow was opposite that shown in Section 8.4.1. Local air velocity was 0.92 m/sec
(180 lfpm). Inlet air temperature to the drive was 77°F (25°C), plus 9°F (5°C) temperature rise in the
test enclosure (86°F/30°C ambient local to the drive).
[2]
Measure HDA temp at point labeled "HDA" on Figure 6.
[3]
PCB mounted integrated circuit case.
b. Non-operating
–40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 36°F (20°C) per hour. This
specification assumes that the drive is packaged in the shipping container designed by Seagate for use with
drive.
Figure 6.
Locations of PCBA components listed in Table 2
Maximum allowable
°
C)
case [3] temperatures (°C)
to meet MTBF spec.
45
52
58
72
50
HDA Temp.
Check Point
4
3
1 . 0
0
1
2
23
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