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Basic-Thermoelectric-Module
author：P&N Tech Time ：
2016-08-02 browse：481
A typical thermoelectric Module consists of two pieces ceramic substrates that serve as a housing and electrical insulation for P-type and N-type (typically Bismuth Telluride) elements between the substrates. Heat is absorbed at the cold junction by electrons as they pass from a low energy level in the p-type element, to a higher energy level in the n-type element. At the hot junction, energy is expelled to a thermal sink as electrons move from a high energy N element to a lower energy Pelement. A Module contains several P-N couples that are connected electrically in series and thermally in parallel.