====== lamaPLC: TEC / Peltier Elements ======
{{ :sensor:peltier_1.png?200|TEC / Peltier Elements}}
A TEC (//thermoelectric cooler//) or Peltier cooler is a solid-state electronic device that uses the Peltier effect to transfer heat, providing both heating and cooling without moving parts such as compressors. Applying a direct electrical current moves heat from one side of the module to the other. This creates a //"cold side"// and a //"hot side,"// making them useful for applications that require precise temperature control of individual components. 

**How it works**

  * **Structure:** The device consists of multiple pairs of P-type and N-type semiconductor "legs" sandwiched between two ceramic plates.
  * **Peltier effect:** When a DC electrical current passes through these legs, it forces heat to flow from one side to the other.
  * **Hot and cold sides:** One side cools while the other heats up, depending on the direction of the current.
  * **Heat dissipation:** The "hot side" must be coupled with a heat sink and fan to dissipate the heat effectively. Without proper heat sinking, the device can be damaged. 

**Key characteristics**

  * **Solid-state:** It has no moving parts, making it reliable and quiet.
  * **Versatile:** It can be used for both cooling and heating, and can also generate DC power (though less efficiently).
  * **Compact:** Its small size is ideal for cooling temperature-sensitive components like CPUs, laser diodes, or voltage references. 

{{ :sensor:peltier_2.png?400 |TEC / Peltier Elements}}

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====== Typical sizes ======
{{ :sensor:tec_1.png |TEC / Peltier Elements typical sizes}}

====== Typical TEC / Peltier Elements characteristic ======
Performance curve (TEC1-12703) when hot surface temperature Th = 27°C or 50°C
{{ :sensor:tec_2.png |TEC Performance curve}}

Performance diagram (TEC1-12703) of cooling power changes with temperature difference under different currents Qc=f(DT)
{{ :sensor:tec_3.png |TEC Performance curve}}

Performance diagram (TEC1-12703) of voltage changing with temperature difference under different currents V=f(DT)
{{ :sensor:tec_4.png |TEC Performance curve}}

Performance curve (TEC1-12703) when hot surface temperature Th=27°C or 50°C \\ 
Performance diagram of temperature difference range 0-30°C. Cooling coefficient changes with voltage COP=f(V)
{{ :sensor:tec_5.png |TEC Performance curve}}

Performance curve (TEC1-12703) when hot surface temperature Th=27°C or 50°C \\ 
Performance diagram of temperature difference range 40~60/70°C. Cooling coefficient changes with voltage COP=f(V) 
{{ :sensor:tec_6.png |TEC Performance curve}}
===== TEC series =====
^Name^Couples^Size^Weight^Imax^Umax^Resistance^ΔT max^Qmax \\ (ΔT =0)^max \\ COP|
|TEC1-12703|127|40x40x4.7 mm|31 g|3 A|15.4 V|3.2-3.7 Ω|66 °C|38.0 W|0.63|
|TEC1-12704|127|40x40x4.7 mm|31 g|4 A|15.4 V|2.85 Ω|66 °C|33.4 W|-|
|TEC1-12705|127|40x40x4.0 mm|29 g|5.3 A|15.4 V|2.20 Ω|75 °C|57.0 W|-|
|TEC1-12706|127|40x40x3.9 mm|27 g|6.4 A|15.4 V|2.3 Ω|75 °C|57.0 W|0.61|
|TEC1-12707|127|40x40x3.5 mm|25 g|7.4 A|15.4 V|1.80 Ω|68 °C|75.0 W|-|
|TEC1-12708|127|40x40x3.5 mm|23 g|8.5 A|15.4 V|1.55 Ω|68 °C|85.0 W|-|
|TEC1-12710|127|40x40x3.3 mm|26 g|10.5 A|15.4 V|1.08 Ω|68 °C|100.0 W|-|
|TEC1-12715|127|40x40x3.9 mm|50 g|15.6 A|15.4 V|0.80 Ω|68 °C|150 W|0.73|
|TEC1-26316|263|50x50x3.1 mm|65 g|16 A|31.5 V|1.60 Ω|66 °C|300 W|-|
|TEC1-12730|263|62x62x3.9 mm|90 g|30.7 A|15.4 V|0.35 Ω|68 °C|350 W|-|
|TEC1-06306|63|40x20x3.9 mm|17 g|6 A|7.6 V|1.05 Ω|63 °C|42 W|-|
|TEC1-06308|63|40x20x3.9 mm|17 g|8.5 A|7.6 V|0.75 Ω|63 °C|32 W|-|
|TEC1-06310|63|40x20x3.3 mm|17 g|7.5 A|7.5 V|0.65 Ω|63 °C|45 W|-|
|TEC1-06312|63|40x20x3.1 mm|17 g|9.5 A|7.5 V|0.55 Ω|63 °C|55 W|-|
|TEC1-04901|-|20x20x4.9 mm|-|1 A|5 V|5 Ω|50 °C|5 W|-|
|TEC1-04902|-|20x20x4.5 mm|-|2 A|5 V|2.5 Ω|55 °C|10 W|-|
|TEC1-04903|-|20x20x3.7 mm|-|3 A|5 V|1.7 Ω|60 °C|15 W|-|
|TEC1-04904|-|20x20x3.5 mm|-|4 A|5 V|1.3 Ω|60 °C|20 W|-|
|TEC1-04905|-|20x20x3.1 mm|-|5 A|5 V|1 Ω|60 °C|25 W|-|
|TEC1-04906|-|20x20x3.1 mm|-|6 A|5 V|0.83 Ω|60 °C|30 W|-|

===== Thermo topics on lamaPLC =====
{{topic>thermo}}

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