Thermoelectric Cooling Module TM 127-1.4-8.5

TM 127-1.4-8.5 Thermoelectric Cooling Module

Specifications with Thot = 27°С

Part Number





Dimensions (mm)
L x W x H

TM 127-1.4-8.5





40 x 40 x 3.45


TM-127-1.4-8.5 is a general purpose workhorse. With 78 watts of cooling capacity, it’s our most powerful 40 x 40 mm single-stage thermoelectric module. Typically this module is powered by a 12V DC power source.

May be used for cooling, heating and temperature stabilization in a wide range of applications including refrigeration, consumer goods, medical, analytical, laboratory & scientific instruments, chillers, telecommunications, electro-optics, industrial and military. A version for thermal cycling is available.

Operating temperature range: -50 °C ~ +200 °C

Available with metalized (and tinned) surfaces;
In strings, of your design or ours, from 2-12 modules long.

Comprehensive Specifications (Hot-Side Temperature 27 °C)

Imax = 8.5 Amps (Imax is the maximum current at ΔTmax)

Vmax = 16 Volts (Vmax is maximum voltage at ΔTmax)

Qcmax = 78 Watts (Qcmax is maximum cooling capacity at Imax, Vmax and ΔT = 0 °C)

ΔTmax = 70 °C (ΔTmax is maximum temperature difference at Imax, Vmax and Qc = 0W)

Internal resistance = 1.50 Ω ± 10% as measured by AC 4-terminal method at 25 °C

Operating temperature range: -50 °C ~ +200 °C (Solder melting point: +235 °C)

Thickness tolerance: ± 0.025mm (Lapping to ± 0.01mm for multi-module apps available.)
Flatness and parallel variance: ± 0.05mm

Standard lead wires: 20 AWG, Tin (Sn) plated at module interface, with a maximum temperature of +105 °C
(Other wiring options available.)

Maximum recommended compression: 1MPa

Ceramics: Alumina (AL2O3) - Available with metalized and tinned surfaces

Available in strings of 2-12 modules

A version for thermal cycling is available

The lot number is printed on the center of the cold-side

Options & Designations (Suffix):
(for example: TM 127-1.4-8.5 "EL")

Comply with ROHS (Restriction of Hazardous Substances) and 2006/122/EC - PFOS (PerFluoroOctane Sulfonates)


click drawing for enlargement

TM 127-1.4-8.5 Drawing

Dimensions in mm


Useful Links


Please contact us for a quotation at or (603) 888-2467


Supplemental Information - click image or link for enlargement