NI 9695 sbRIO Thermal Solution
2
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Mounting and Environmental Considerations
The heat spreader provided in NI-9695 is intended to improve the thermal
performance of sbRIO by removing heat from the components that may
limit the device's maximum operating temperature. The mounting
configuration of the heat spreader can also influence the device's maximum
operating temperature. The spreader can either be mounted with its flat face
against a base mounting surface (ideally a thermally conductive surface) or
with the flat face exposed to air. When the heat spreader's flat face is
exposed to air, a heat sink can potentially be added to the face in order
increase the heat spreader's ability to convect heat to the surrounding
environment. The best orientation will vary by application depending on
factors like the base mounting material, system enclosure material,
interactions with other heat sources in the system, size restraints, and air
flow availability.
For information and examples on environmental and design factors that can
impact the thermal performance of an NI sbRIO system, go to
ni.com/info
and enter the Info Code
sbriocooling
.
Gap Pad
Pre-cut gap pad pieces are provided to act as the thermal interface material
between the heat spreader and sbRIO components. Installing the heat
spreader will require two large gap pad pieces and three small pieces,
making one of the provided small pieces a spare.
Figure 2.
Perforated Sections Mark Individual Pieces of Gap Pad
