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 Depending on new tendencies of thermoelectric market and customers specific requirements NORD assembles a wide range of thermoelectric modules featured by different performance values as well as geometrical sizes. Constantly striving for supreme sales service we have elaborated a special classification table of our product - General Specification that serves as a comprehensive tool for choosing an appropriate TE cooler type.
Before you proceed with the appropriate TE module type search we would like you to spend some time looking through the below remarks in order to get acquainted with our internal classification principles and definitions.
General Specification is divided into the following major sections reflecting module dimensions and thermoelectric properties:
One-stage standard modules
Two-stage standard modules
Special design modules
One-stage micromodules
Two-stage micromodules
 One-stage standard modules
All thermoelectric coolers designation within this product group is encoded in the following letter string TM-AAA-BB-CC where
TM - thermoelectric module
AAA - the number of thermocouples
BB - cross-section of the pellet, mm
CC - the value of maximum current when DT is max, Amps
For instance, module TM-127-1.4-6.0 is the type that consists of 127 thermocouples with pellet cross-section of 1.4 by 1.4 mm and has maximum current value of 6.0 Amps.
 Two-stage standard modules
All modules designation within this product group is encoded in the following letter string 2TM-AAA-BB-CC where
2 - number of stages in module
TM - thermoelectric module
AAA - the number of thermocouples in the second stage
BB - the number of thermocouples in the first stage
CC - the value of maximum current when DT is max, Amps
For example, Peltier module 2TM-127-63-6.5 is a two-stage type consisting of 127 thermocouples in the second stage and 63 in the first one and has maximum current value of 6.5 Amps.
 One-stage micromodules
Modules designation within this product group replicates the one described in one-stage standard Peltier modules.
Two-stage micromodules
Modules designation within this product group replicates the one described in two-stage standard TE modules.
 Thermoelectric modules for power generation
All module' designation within this product group is encoded in the following letter string TMG-AAA-BB-CC where
TMG - thermoelectric module for power generation
AAA - the number of thermocouples
BB - cross-section of the pellet, mm
CC - the height of thermoelectric pellet, mm
For instance, module TMG-127-1.4-1.6 is the type that consists of 127 thermocouples with pellet cross-section of 1.4 by 1.4 mm and has the height value of 1.6 mm.
Optional versions of thermoelectric module assembling
Every type of Peltier element listed in General Specification can be manufactured in any of the following versions:
High temperature version (additional index H to the module designation, e.g. TM-127-1.4-6.0H) is designed on the basis of + 230° C m.p.t. lead free solder for modules to operate in up to + 200° C conditions.
M-series version (additional index M to the module designation) is designed for TE elements to be applied in various cycling applications.
TMC-series version (additional index TMC to the module designation, e.g. TMC-127-1.4-6.0M) as a sequel to M-series is specifically developed for modules to operate in particular applications such as burn-in test equipment or thermocyclers.
Characteristics indicated in General Specification are performance values of module operation measured at the hot side temperature (T hot) of 300 K.
I max - input current resulting in greatest DT max, (Amps)
U max - input voltage at DT max, (Volts)
Q cmax - maximum heat pumping capacity at I max, DT = 0° C, (Watts)
DT max - maximum temperature difference module can achieve at I max, Q c = 0, (Degrees)
Options for thermoelectric module wire leads attachment are shown on the drawings below.
 
 
The module you need is not in the list? Please give us your requirements by filling the application form (here) so that our engineers could design an appropriate type for you.
We recommend to pay much attention to our General Specification before sending an inquiry for designing a new module.
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