Figure 10. Kyhx Temperature Measurement Locations - Seagate ST31250N Product Manual

Barracuda 2LP Product Manual, Rev. D
Air-flow cooling
ST31250WD and ST32550WD wide differential drives
Card Component
KYHX ADC
KYHX Detector
KYHX Microprocessor
KYHX Driver
The air-flow pattern with which the temperature guidelines above were
generated is shown in Figure 6 (opposite direction). Local average air
velocity was 0.61 msec (120 lfpm) and inlet air temperature to the drive was
30°C (86°F), plus a 5°C temperature rise in the test enclosure (35°C ambient
local to the drive).
The maximum allowable HDA case temperature is 60°C (see Figure 13).

Figure 10. KYHX temperature measurement locations

Reference
1
2
3
4
3
2
4
27
MTBF
800k hours
case temperature (°C)
49
60
55
57
1