TECs: Standard Supply Options
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  Various thermoelectric modules' applications determine requirements regarding the a TEC's height. In our product line information and catalogue you will find the H column that keeps you informed on aTEC's cenral height for each type of Kryotherm module. We guarantee the height accuracy for non-metallized TECs, or in other words TEC flatness, to be no less than +/- 0.025mm. If you place a large order and you do not hold any specific requirements regarding the TEC's height, then we tend to manufacture TECs in several lots with a certain central height in each of the lots, or so-called basic height. In this case parallel difference, or TEC flatness, of each TEC will remain the same +/- 0.025mm and basic heights will range within +/-0.35mm from the central height specified for each TEC type and given either in product line information or in the catalogue.
   
  If you install TECs in a heat sink, they will be manufactured with the same basic height. Please make sure to specify in your enquiries and purchase orders if it is vital for you to have TECs manufactured at the same height.
   
  We also produce TECs with metallized external surfaces of the ceramic plates which is, for example, the case of miniature TECs and multistage TECs. Such modules are not subject to polishing and should be installed in heat sinks or heat exchangers by means of soldering. When using metallized TECs, metallized surfaces (or one of the surfaces) should be coated with a solder layer of 95ºC melting temperature to ease TECs soldering on heat sink / heat exchanger. Please note that at your request we can manufacture TECs with a solder melting temperature of 117ºC. TECs surface tinning leads to its parallel difference, or flatness, ranging within +/- 0.1mm.
   
  In order to protect TECs from moisture, we suggest using silicone or epoxy sealing. We use original materials and methods which allow us to minimize heat backflow (heat transfer from TEC hot to the cold side in reverse direction) that appears when the sealant is being applied. Our sealing materials allow maximum delta temperature to drop only from 0.5 to 1ºC. It is highly recommended not to seal TECs yourself since this can lead to unintentional TEC damage. Should you seal Kryotherm modules yourself, we bear no resposibility for TEC operation.
             
  Our standard options for all TEC types are as follows:
             
  Sealing:          
  Without sealing,          
Silicone sealing (RTV),
  Epoxy sealing.          
  Metallization:          
  Without metallization,          
  Module hot side,          
  Module cold side,          
  Both sides.          
  Tinning of External Sides of Ceramic Plates:          
  Solder with a melting temperature of 95ºC,          
  Solder with a melting temperature of 117ºC,          
  Wire Length (mm):          
  Standard 120mm,          
  Arbitrary. Not less than 20mm.          
             
             
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