The PowerCycling Series is a thermoelectric module (TEM) designed for thermal cycling between multiple temperature set points and is ideal for applications in healthcare [and others] where fast temperature changes are required. The module is specially constructed to reduce the amount of stress induced on the TE elements during operation. This product line has been tested to withstand 500K cycles without degradation in performance. The TEMs are assembled using Bismuth Telluride semiconductor material and thermally conductive Aluminum Oxide ceramics.

Links to the individual data sheets:

PC4,12,F1,3030 33,4W/3,9A/14,4V dT=67K 30,0x30,0x3,2mm
PC5,16,F1,4040 53,2W/4,8A/18,3V dT=67K 40,0x40,0x3,7mm
PC6,12,F1,4040 51,4W/6,0A/14,5V dT=67K 40,0x40,0x3,81mm
PC7,16,F1,4040 76,3W/7,0A/18,3V dT=67K 40,0x40,0x3,3mm
PC8,12,F1,4040 72,0W/8,5A/14,5V dT=67K 40,0x40,0x3,3mm
PC12,139,F1,3550 117,1W/12,3A/15,5V dT=67K 50,0x35,0x3,0mm