This Thermion series is designed specially for cooling CCDs, multi-element matrixes of IR detectors, focal plain arrays and other planar optoelectronic elements which have relatively large surface and require low temperatures for their operation. Over 250 cascade configurations having identical or near identical top and bottom dimensions are available now. Despite the increased cold side area, these coolers provide an even greater temperature drop than traditional “pyramidal” cascade TECs. This Thermion’s series is permanently supplemented with new advanced configurations in response to the most refined customer’s needs. Such are the TECs: 2TMB04-042-C2, 2TMB04-066-A2, 2TMB04-092-A3, 5TMB06-113-A1224, 5TMB10-164-B2224, 5TMB10-183-A1123 and many others.