ATE1-71 TEC Modules

This TEC (Thermoelectric Cooler) module, ATE1-71, has 71 pairs of Peltier elements inside with a maximum voltage of 8.5 Volt. They are designed for regulating the temperature of the target objects precisely and can be controlled by our TEC controllers to build highly stable and efficient temperature regulating systems. The ATE1-71 TECs can be used with our thermistors as well to achieve precise and stable temperature sensing. The ATE1- 71 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.

In the part number, the last two letters before S, 4A indicate the maximum current allowed for entering the TEC module. “S” represents sealed version and “H” stands for high operating temperature, up to 200°C. All of them can achieve a maximum temperature difference, DTmax, of 74.5°C