The face of a thermoelectric cooler that usually is placed in contact with the heat sink. When the positive and negative cooler leads are connected to the respective positive and negative terminals of a DC power source, the cooler’s hot side will reject heat. Normally, the wire leads are attached to the hot side ceramic substrate.Imax Current which, the maximum delta T is produced. Generally, it is not a good to operate a TE cooler at Imax because the amount of input power increases significantly without a significant change in delta T. 70 – 80 % of Imax is usually an optimal operating condition.
