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The ATE1-TC-127 series TECs come in with highly flat
bare ceramic surfaces on the both sides, they can be
mounted onto flat metal surfaces by inserting thin layers of
thermally conductive filler materials, the so-called thermal
pads, or placing a thin layer of thermal paste. When
mounting, make sure that proper pressure is applied
constantly to keep good thermal contacting between the
metal and the TEC plates, minimizing thermal resistance
between them. The TECs can withstand strong orthogonal forces applied to
the surface, but very vulnerable to tangent forces, especially
shocking tangent forces. A small shocking tangent force can
cause the Peltier elements crack inside. The crack may not
cause operation problem initially, but it will grow with time,
causing the TEC resistance to increase slowly, by the end,
the TEC will stop operating.
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