At present thermoelectric modules find increasingly wider use in what is known as cycling conditions. They are characterized by high heating/cooling rates of 5 to 20 degree/sec; besides, Peltier modules are to ensure stable work in reversal polarity of supply voltage conditions during hundreds of thousands of cycles.
Such applications of thermoelectric modules may be:
medical equipment for PCR used for DNA analysis
testing equipment for temperature tests of electronic devices
analytical equipment
Launch of ТМС series of cycling thermoelectric modules was largely due to the development and application of the following design and technological innovations:
advanced polycrystalline thermoelectric materials with high mechanical strength, obtained using the powder metallurgical technique
patented technology for the manufacture of glued Peltier modules for relieving mechanical stresses taking place on operating module
designed and implemented technology of multilayer antidiffusion barriers resistant to thermal stresses
gold-plated semiconductor thermoelectric dices to avoid thermoelectric module soldering defects
thermoelectric modules soldered using low active rosin fluxes with minimum ion component concentrations for enhanced corrosion resistance of modules
precise finish high quality lapping to ensure thickness, parallelism and flatness of Peltier module working surfaces to enable a good thermal contact with the cooled object and the heat sink
6-stage washing with a variety of solvents to remove residual flux and ensure corrosion resistance of modules;
module quality control at all production operations, regulated by the Quality Assurance for thermoelectric modules (basic level)
application of only those components that have been approved for use by the EU RoHS Directive.
Due to the above innovations, ТМС series thermoelectric modules are highly reliable when used in cyclic temperature change conditions. Provided below as an example are the results of reliability tests of ТМС-127-1.4-6.0 М modules.
The capabilities of TMC-series thermoelectric modules to withstand high cycling are shown for module TMC-127-1.4-6.0 M ( I=0.8Imax, T heat sink =40+5oC, Tcold=20/100oC, cycle time = 60sec)
Reliable operation of Peltier modules in temperature cycling conditions depends on the operating conditions, cycle temperature and time parameters, thermoelectric module dimensions and component parts.
The required thermoelectric module types are selected from the Table given below, based on the marking ТМC-ААА-ВВ-СС М, where:
TMС - cyclic thermoelectric module
AAA - number of thermocouples
BB - dice cross section, mm
CC - current at maximum temperature differential ΔT, А
М - modules manufactured using the patented glue technology
ТМС module design example
THERMOELECTRIC
MODULE TYPE
PERFORMANCE
GRAPHS
Imax, A
Umax, V
Qcmax, W
ΔTmax, °C
Cold side, mm
Hot side, mm
Height, mm
TMC-31-1.0-3.9 M
3.9
3.6
8.9
72
15 x 15
15 x 15
3.6
TMC-71-1.0-3.9 M
3.9
8.2
20.4
72
22.4 x 22.4
22.4 x 22.4
3.6
TMC-127-1.0-3.9 M
3.9
14.6
36.6
72
30 x 30
30 x 30
3.6
TMC-71-1.4-6.0 M
6.0
8.2
30.0
71
30 x 30
30 x 30
3.8
30 x 34
TMC-127-1.4-6.0 M
6.0
14.6
53.0
71
40 x 40
40 x 40
3.8
40 x 44
TMC-144-1.2-8.0 M
8.0
16.6
78.0
71
16.2 x 72.4
16.8 x 76.7
2.7
TMC-69-1.4-8.5 M *
8.5
7.9
43.0
71
35 x 35
35 x 35
3.4
TMC-71-1.4-8.5 M
8.5
8.2
40.0
71
30 x 30
30 x 30
3.4
30 x 34
TMC-127-1.4-8.5 M
8.5
14.6
71.0
71
40 x 40
40 x 40
3.4
40 x 44
TMC-32-2.0-9.0 M
9.0
3.6
21.0
72
25.4 x 25.4
25.4 x 28.4
4.8
TMC-69-1.4-9.0 M
9.0
7.9
43.0
71
35 x 35
35 x 40
3.0
TMC-71-1.4-9.0 M
9.0
8.2
44.0
71
30 x 30
30 x 30
3.4
TMC-71-1.6-15.0 M
15.0
8.2
67.0
71
29.2 x 29.2
29.8 x 33.8
2.35
TMC-127-1.6-15.0 M
15.0
14.6
115.0
71
40 x 40
40 x 40
3.2
40 x 44
TMC-161-1.6-15.0 M
15.0
18.5
148.0
71
40 x 40
40 x 40
3.3
TMC-241-1.6-15.0 M
15.0
27.7
225.0
71
50 x 50
50 x 54
3.6
TMC-32-2.0-15.0 M
15.0
3.7
34.0
71
25.4 x 25.4
25.4 x 28.4
3.6
TMC-70-2.5-15.5 M
15.5
8.0
73.0
71
36.4 x 50.2
36.4 x 54.4
4.7
TMC-70-2.5-24.0 M
24.0
8.0
110.0
71
36,4 x 50.2
36.4 x 54.4
3.2
* - With central hole.
Imax- current consumption at maximum temperature difference(ΔTmax), A Umax- voltage suppliedat maximum temperature difference(ΔTmax), V Qcmax -maximum cooling capacity at Imax and ΔT = 0 °C, W ΔTmax- maximum temperature differenceat Imaх and Qc = 0, °C
Higher power characteristics may be achieved in devices where higher hot side temperatures are acceptable.
Basic characteristics of ТМС thermoelectric modules at a hot side temperature of 50оС
THERMOELECTRIC
MODULE TYPE
PERFORMANCE
GRAPHS
Imax, A
Umax, V
Qcmax, W
ΔTmax, °C
Cold side, mm
Hot side, mm
Height, mm
TMC-31-1.0-3.9 M
3.9
3.9
10.0
80
15 x 15
15 x 15
3.6
TMC-71-1.0-3.9 M
3.9
9.0
23.0
80
22.4 x 22.4
22.4 x 22.4
3.6
TMC-127-1.0-3.9 M
3.9
16.2
41.0
80
30 x 30
30 x 30
3.6
TMC-71-1.4-6.0 M
6.0
9.0
35.0
80
30 x 30
30 x 30
3.8
30 x 34
TMC-127-1.4-6.0 M
6.0
16.2
60.0
79
40 x 40
40 x 40
3.8
40 x 44
TMC-144-1.2-8.0 M
8.0
18.2
95.0
79
16.2 x 72.4
16.8 x 76.7
2.7
TMC-69-1.4-8.5 M *
8.5
8.9
44.0
79
35 x 35
35 x 35
3.4
TMC-71-1.4-8.5 M
8.5
9.0
55.0
79
30 x 30
30 x 30
3.4
30 x 34
TMC-127-1.4-8.5 M
8.5
16.2
81.0
79
40 x 40
40 x 40
3.4
40 x 44
TMC-32-2.0-9.0 M
9.0
4.0
23.0
79
25.4 x 25.4
25.4 x 28.4
4.8
TMC-69-1.4-9.0 M
9.0
8.9
48.0
79
35 x 35
35 x 40
3.0
TMC-71-1.4-9.0 M
9.0
9.0
50.0
79
30 x 30
30 x 30
3.4
TMC-71-1.6-15.0 M
15.0
9.0
76.0
79
29.2 x 29.2
29.8 x 33.8
2.35
TMC-127-1.6-15.0 M
15.0
16.2
136.0
79
40 x 40
40 x 40
3.2
40 x 44
TMC-161-1.6-15.0 M
15.0
20.8
173.0
79
40 x 40
40 x 40
3.3
TMC-241-1.6-15.0 M
15.0
31.1
256.0
79
50 x 50
50 x 54
3.6
TMC-32-2.0-15.0 M
15.0
4.0
38.0
79
25.4 x 25.4
25.4 x 28.4
3.6
TMC-70-2.5-15.5 M
15.5
8.9
81.0
79
36.4 x 50.2
36.4 x 54.4
4.7
TMC-70-2.5-24.0 M
24.0
8.9
116.0
79
36,4 x 50.2
36.4 x 54.4
3.2
If you did not find the module that meets your requirements, we are ready to design the one at your request.
At the customer's request, thermoelectric modules with additional options may be manufactured:
Standard variant
Additional options
Alumina ceramic substrates (Al2O3 96% or higher)
Ceramic substrates based on aluminum nitride (AlN)
Non-sealed modules
Silicone sealing
Resistance tolerance ± 10 %
Resistance tolerance ≤ ± 5%
Grouping of modules with resistance tolerance of no more than 0.004 Ohm
Heght tolerance no more than ± 0.02 mm
Height tolerance no more than ± 0.01 mm
Grouping of modules (by height)
Nonflatness no more than ± 0.02 mm
Nonflatness no more than ± 0.01 mm
Lead wires with PVC insulation
Lead wires with silicone or teflon insulation
Lead wires lenght 120 or 150 mm
Lead wires lenght in accordance with custmer requirements
Lead wires ends are tinned
Installation of Molex, Tyco Electronics or other connectors as requested by the customer
Modules may be connected in accordance with the customer requirements
