TECs: Preliminary Remarks
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	Preliminary Remarks on Kryotherm Products
	Kryotherm currently manufacture over 150 types of regular thermoelectric coolers (TECs) that serve a wide variety of thermoelectric product applications. Kryotherm TEC physical dimensions vary from 3.4mm x 3.4mm to 62mm x 62mm with the cooling capacity values of 0.1 watts to 186 watts respectively. Working as a strategic partner with their clients they run custom design projects manufacturing TECs with the cooling capacity within the range of 0.1 - 250 watts.
Links to TEC Pages	Kryotherm TECs are divided into the categories given below on the basis of their physical dimensions and thermoelectric properties:
Miniature Single Stage TECs	-Miniature Single Stage TECs,
Standard Single Stage TECs	-Standard Single Stage TECs,
Highly Effective Single Stage TECs	-Highly Effective Single Stage TECs,
Special TECs	-Special TECs,
TECs With Holes	-TECs with Holes,
Multistage TECs	-Multistage TECs.
Standard Supply Options
	Single Stage TECs/Miniature Single Stage TECs
	The universal abbreviation of TB-AAA-BB-CC is used for Kryotherm's standard and miniature TECS where:
	TB stands for Thermoelectric Battery
	AAA denotes the number of thermocouples in a TEC,
	BB defines the length/width of a thermoelectric pellet (in mm),
	CC defines the height of the thermoelectric pellet (in mm).
	For example, TB-127-1,4-1,5 stands for a TEC which has 127 thermocouples (or 256 thermoelectric pellets) with the pellet cross section of 1.4mm x 1.4mm and a pellet height of 1.5mm.
	Highly Effective TECs
	The DDDD-EE abbreviation is used for Kryotherm improved TECs where:
	DDDD stands for the product line name,
	EE defines the module delta T max (K).
	For example, the FROST TEC line (DDDD) embraces TECs with delta T max of 71, 72, 73, and 74 K (EE). When a TEC product line includes only one item, the EE abbreviation part is omitted. If TEC items that constitute one product line are characterized by the same delta T max value but differ in terms of their cooling capacity, then the EE abbreviation stands for the module pellet height. Kryotherm's powerful TECs making up the DRIFT line, for instance, are marked with EE indexes of 1.5 (94 watts), 1.2 (115 watts), 1.15 (120 watts), 1.05 (131 watts), and 0.8 (173 watts) respectively.
	TECs with Holes
	We adopt the same notation system for TECs with holes as for standard single stage TECs with only one modification. We have introduced the following indexes:
	CH indicates rectangular TECs with a centre hole, for example TB-43-1.0-0.8 CH,
	CHR is used for round TECs with holes in the centre, for example TB-19-1.0-1.3 CHR,
	R stands for round TECs, for instance TB-253-1.4-1.5 R
	Multistage TECs
	We use the universal abbreviation of TB-A-(BB1-BB2-BB3-BB4)-CC for our multistage TECs where:
	TB stands for Thermoelectric Battery,
	A indicates the number of stages in a TEC,
	BB1-BB4 denotes the number of thermocouples in the first, second, third, and fourth stages. Also, BB1-BB2 is used for two stage TECs, BB1-BB3 is for triple stacked TECs, BB1-BB4 is a four stage TEC.
	CC defines the height of the thermoelectric pellets in the bottom stage (in mm).
	High Temperature TECs
	You can find high temperature TECs in all of the above mentioned product lines. these TECs have the operating temperature of 150°C at the module hot side. We indicate such TECs with the help of the additional index of HT, for example, FROST-74 HT.
	Significant Specifications of Kryotherm TECs
	Delta T max is the largest temperature differential (K) that can be obtained between the hot and cold cermaic plates of a TEC for the given level of T hot of 300 K.
	I max is the input current (amps) which can produce the maximum possible delta T across a TEC.
	U max is the DC voltage (volts) that will deliver the maximum possible delta T at the supplied I max.
	Q max is the maximum amount of heat (watts) that can be absorbed at TEC's cold plate at I max and delta T equal 0°.
	Kryotherm TEC's size is determined by the physical dimensions of the ceramic plates.
	Kryotherm TECs have electrode leads which look like outer tabs with the lead wires soldered to them on the module's hot plate. So, if you look at the diagrams, you will see that a TEC cold plate is treated as the device top plate whereas the hot plate, which can be bigger in size than the cold plate, is shown as the bottom plate. The left electrode lead that is soldered to black lead wire is to be connected to the negative power supply. the right electrode lead that is soldered to the red lead wire is to be connected to the positive power supply.
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