TMR 26-6-5.0 Round Thermoelectric Module with Center Hole

TMR 26-6-5.0
26mm Round Thermoelectric Module with 6mm Center Hole

Specifications with Thot= 27°С

Part Number





Dimensions (mm)
⌀OD (⌀ID) x H

TMR 26-6-5.0





26 (6) x 3.9


TMR 26-6-5.0 is a round single-stage thermoelectric module with a 26mm outer diameter and 6mm center hole.

TMR_26-6-5 with light passing through a shadow

TE modules with holes allow the user to pass light, sensors, components or hardware directly through the module.

3.3 or 5V DC sources typically supply power to TMR 26-6-5.0. This is a high performance module is commonly used for cooling or temperature stabilization applications including laboratory/medical equipment, a variety of instrumentation, opto-electronics, industrial equipment, electronics and more. The module may also be used for heating to +90 °C

Operating temperature range: -40 °C ~ +100 °C


Comprehensive Specifications (Hot-Side Temperature 27 °C)

Imax = 5.0 Amps (Imax is the maximum current at ΔTmax)

Vmax = 6.1 Volts (Vmax is maximum voltage at ΔTmax)

Qcmax = 17.8 Watts (Qcmax is maximum cooling capacity at Imax, Vmax and ΔT = 0 °C)

ΔTmax = 68 °C (ΔTmax is maximum temperature difference at Imax, Vmax and Qc = 0W)

Internal resistance = 1.02Ω ± 10% as measured by AC 4-terminal method at 25 °C

TM2 40-40-8.5 Photo

Operating temperature range: -40 °C ~ +100 °C (-40 °F ~ +212 °F)
(Solder melting point: +138 °C)

Thickness tolerance: ± 0.2mm
Flatness variance: ± 0.05mm

Standard lead wires: 22 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)



click drawing for enlargement

Round Center-hole Thermoelectric Module Illustration  

Dimensions in mm


Useful Links


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


Performance Curves (click image for enlargement)

Thermoelectric module performance curves are graphical representations showing the relationships between power applied and net cooling for a specific TE module.

Performance curves are valuable tools for quickly determining if a TE module is a suitable COOLER for an application; learning what power is required for an appropriate module to reach the desired temperature and heat pumping capacity; and to provide the basic information necessary for proper assembly design.

Curves with Th = 27 °C indicate what to expect operating in ambient temperatures around 20 °C (70 °F) with an operational "hot-side" temperature or Th about 7 °C above ambient.

Curves with Th = 50 °C are for outdoor, box-in-box, and other applications with ambient temperatures in the 40-50 °C range.

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International: 603.888.2467