Thermoelectric assemblies (TEAs) are compact units that control the temperature of a wide variety of applications, such as laser diode packages in active optics, lasers in medical and industrial instrumentation, electronic enclosures, sample storage chambers in medical diagnostics and analytical instruments and batteries in various automotive and telecom applications. TEAs serve a cooling capacity spectrum from approximately 10 to 400 Watts, and can cool by removing heat from control sources through convection, conduction, or liquid means.
TEAs offer several advantages over other cooling technologies. For example, conventional fan trays do not cool to below ambient and requires an air exchange with the outside environment. On the other hand, TEAs can cool to well below ambient and protect electronics inside enclosures from outside contaminants, and also limit moisture exposure from the ambient environment. TEAs also offer precise temperature control, such as accuracies to within 0.01°C achieved under steady-state conditions.
TEAs have several advantages over conventional compressor-based systems:
- Compact in size, and weigh less than conventional compressor- based systems
- Mountable in any orientation, and have lower noise and vibration
- Environmentally friendly, do not use CFCs and are RoHS compliant
- Low-to-no field-maintenance requirement, which lowers the total cost of ownership.
We are pleased to present an excerpt from the recently published Thermoelectric Assembly Handbook from Laird Technologies, Inc., covering TEA transfer systems and TEA sizing. To read the excerpt, click here.
(To download the entire handbook, go to LairdTech.com here.)