ST-127-1.4-8.5 TE Cooler Tech Data Sheet

QC vs. I Curve

ST-127-1.4-8.5 is our most powerful single-stage thermoelectric module, in the 40 x 40 mm footprint, intended for use with 12 to 15-volt DC power sources. Having the greatest Qmax also means having to eject the greatest amount of heat and this module may require a fabricated forced convection heatsink, or liquid heat sink, in order to limit the hot-side temperature increase to an acceptable level. Also available with porch, metallized and tinned surfaces and in strings from 2-12 modules long.

ST-127-1.4-8.5 may be used for cooling, heating and temperature stabilization and is employed in a wide range of applications including consumer, lab/scientific/biomedical, industrial, military, aerospace and test.

100% QC including thermal cycling "burn-in" available.

Maximum operating temperature +150°C
Melting point of internal solder (Pb/Sn): 183°C
Antidiffusion barriers prevent solder migration

A High Performace "HP" version of this module is available and should be selected for high temperature and/or thermal cycling applications

Option Suffix designations: Anti-corrosion Potting "P"
Epoxy edge sealing "E"
Lapping to ą 0.01mm "L"
(for example ST-127-1.4-8.5"PE")

Module Characteristics and Value Descriptions:
I_max is the maximum (optimal) input current in amperes
V_max is the maximum input voltage in volts when the current is optimal (I_max)
Q_max is the maximum amount of heat the module is capable of pumping. This value is achieved when there is no difference in the temperature (DT=0) on the modules two surfaces. If your application requires cooling, the heat pumping capacity will be less.

DT_max or DT_max is the maximum temperature differential between the hot and cold side of the module with no heat load (Q=0)
As the thermal mass of the object to be cooled increases the DT becomes fewer degrees until Qmax is reached and DT=0.

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