1908 DIMENSIONS AND MOUNTING INFORMATION
The Micropolis 1908 drive uses industry-standard mounting for 5 1/4-inch "full-height" Winchester disk drives. It is designed such that the outer frame should be hard-mounted to the host equipment; no additional or external shock mounts should be used.
Recommended orientation is vertical on either side, or horizontal with the Device Electronics board down; other mounting orientations may be used provided the ambient air temperature around the drive is kept at or below 50° C (122° F).
The term "ambient" becomes imprecise when referencing a drive in a system, since it is difficult to determine where the air temperature should be measured. To help resolve this confusion, Micropolis specifies that the maximum HDA casting temperature (regardless of the air temperature around the drive) is 60° C (140° F). Not exceeding this temperature will ensure that the head-to-media interface never exceeds its temperature limit.
Mounting screws must not penetrate the bottom mounting holes by more than 0.20 inches, or the side mounting holes by more than 0.156 inches. Screws that are too long may short-circuit PCBA components.
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