Pro-Range TES1-7106 Thermoelectric Cooler Peltier Module - 8.4V, 27.5W Cooling, 23x23mm

The TES1-7106 is rated for a maximum temperature difference (ΔT_max) of 65°C. This is the theoretical difference between the hot and cold sides when the hot side is held at a specific temperature (typically 27°C) and no heat load is applied. In practice, the achievable ΔT will be lower when pumping a significant heat load (like 27.5W) and depends heavily on the efficiency of the external heatsink.

You need a DC power supply capable of delivering at least 8.4V and a minimum of 6A continuously, resulting in approximately 50W of electrical input. The supply should be stable and low-noise to prevent performance fluctuations. Using a PWM controller or dedicated TEC driver is recommended for precise temperature control and to avoid thermal shock from simple on/off switching.

The cold side should be firmly attached to the object you wish to cool using thermal paste. The hot side must be connected to a heatsink capable of dissipating the combined heat load (27.5W cooling + ~22.5W electrical losses = ~50W total). A forced-air heatsink or liquid cooling block is essential. Ensure mounting pressure is even to avoid cracking the ceramic plates. Insulate the sides to prevent condensation in humid environments.

Yes. By reversing the polarity of the applied DC voltage, the heat pumping direction is reversed, turning the cold side into the hot side. This allows the same module to be used for precise heating applications. The same electrical and heatsinking requirements apply. A bipolar (H-bridge) driver is needed for automatic heating/cooling control.