a. Confirm the ambient temperature (Th);

b. Confirm the required temperature of the cooling space or objects (Tc);

      c. Confirm the application’s heat load power (Q, the heat need to be removed or lowered);

d. Determine the required cooling capacity (Qc, considering heat loss, it is recommended Qc = 1.5 * Q);

e. Find out TE products from the catalog, whose maximum heat pumping capacity (Qmax) matches with the Qc worked out by step #4 (±5W), and then refer to the expected Current and Voltage to pick out a suitable product.

If the single product could not meet the requirement, you can also use series or parallel connect multiple products to get higher performance, the quantity = Qc / Qmax (Single products).