Thermal Considerations Xenus XSL User Guide
172 Copley Controls Corp.
D.2: Heatsink Mounting Instructions
Phase change material (PSM) is used in place of thermal grease. This material comes in sheet
form and changes from solid to liquid form as the amplifier warms up. This forms an excellent
thermal path from amplifier heatplate to heatsink for optimum heat transfer.
D.2.1 Remove the transparent plastic carrier sheets from both sides of the phase change
material.
Transparent Carrier
(Discard)
Phase Change
Material
D.2.2 Place the phase change material on the amplifier, taking care to center the phase
change material holes over the heatsink mounting holes.
D.2.3 Mount the heatsink onto the amplifier taking care to see that the holes in the heatsink,
phase change material, and amplifier all line up.
D.2.4 Torque the #6-32 mounting screws to 8~10 lb-in (0.9~1.13 Nm).
#6-32 Mounting Screws
Xenus Amplifier
Transparent Carrier
(Dis card)
Phase Change Material
Heatsink
Phase Change
Material
NOTE: The drawing shows the standard heatsink kit (XSL-HS), but the mounting
instructions given are valid for the low profile heatsink kit (XSL-HL) as well.
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