We offer both aluminum heat sinks, and also aluminum spacer blocks. The heat sinks have dimensions as shown.

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small ...... 105 mm x 102 mm x 17 mm thick
medium ... 130 mm x 102 mm x 17 mm thick
large ...... 160 mm x 130 mm 28 mm thick

For dissipating heat away from any of the 40 mm TEC modules, a large heat sink is needed. The smaller heat sinks are for use with smaller TEC modules, or for use as a “cold side” cold plate.

Spacer blocks have dimensions as indicated, and are designed to transfer heat through insulated walls. Each spacer block has a recess inscribed in one face, sized to receive a matching thermal cut-off switch.

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spacer block, 42 x 42 x 24 mm

For dissipating heat away from any of the 40 mm TEC modules, a large heat sink is needed. The smaller heat sinks are for use with smaller TEC modules, or for use as a “cold side” cold plate.