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Thermoelectric
Modules
About Laird
Thermoelectrics are ideal for applications that require active cooling
Laird is a global technology company focused on providing
to below ambient and have cooling capacity requirements < 600
systems, components and solutions that protect electronics from
Watts. A design engineer should consider TEMs when the system
electromagnetic interference and heat, and that enable connectivity
design criteria includes such factors as precise temperature control,
in mission-critical wireless applications and antenna systems.
high reliability, compact geometry constraints, low weight and
We are a global leader in the field of radio frequency (RF) engineering environmental friendly requirements.
and in the design, development and supply of innovative technology
that allows people, organisations and applications to connect
efficiently.
Benefits of Using
Our aim is to be a trusted partner to our customers by delivering
problem-solving solutions through Innovation, Reliable Fulfilment,
Thermoelectrics
and Speed.
TEMs have several advantages over alternate cooling technologies:
Laird partners with its customers to design custom thermal solutions
for applications in many industries including:
They have no moving parts, so the solid state construction results
in high reliability and units can be mounted in any orientation.
Medical Diagnostics
TEMs can cool devices down to well below ambient. Colder
Medical Imaging
temperatures can be achieved, down to minus 100C, by using
Baertt y Cooling
a multistage thermoelectric module in a vacuum environment.
Industrial Laser Systems
Thermoelectrics are able to heat and cool by simply reversing the
polarity, which changes the direction of heat transfer. This allows
Optoelectronics
temperature control to be very precise, where up to 0.01C can
Analytical Instrumentation
be maintained under steady-state conditions.
Semiconductor Fabrication
In heating mode, TEMs are much more efficient than
Aerospace Defense conventional resistant heaters because they generate heat
from input power supplied plus additional heat generated by
Food & Beverage
the heat pumping action.
Automotive
Devices are environmentally friendly because they use no CFCs
As an industry leader in high-performance Engineered Thermal and electrical noise is minimal.
Systems that demand high system uptime, Laird provides the
TEMs can be used as energy harvesters, turning waste heat into
knowledge, innovation, and resources to ensure exceptional
usable output DC power.
thermal performance and customer satisfaction for applications in
the medical, analytical, telecom, industrial, and consumer markets.
A Brief Introduction to
Thermoelectrics
Solid state heat pumps have been in existence since the discovery of
the Peltier effect in 1834. The devices became commercially available
several decades ago with the development of advanced semiconductor
thermocouple materials in combination with ceramics substrates.
Thermoelectric modules (TEMs) are solid-state heat pumps that require
a heat exchanger to dissipate heat utilizing the Peltier Effect. During
operation, DC current flows through the TEM to create heat transfer
and a temperature differential across the ceramic substrates, causing
one side of the TEM to be cold, while the other side is hot. A standard
single-stage TEM can achieve temperature differentials of up to 70C.
A typical TEMs geometric footprint can vary from 2 x 2 mms to 62 x
62 mms and are light in weight. This makes thermoelectrics ideal for
applications with tight geometric space constraints and low weight
requirements when compared too much larger cooling technologies,
such as conventional compressor-based systems. TEMs can also be
used as a power generator to convert waste heat into usable output
DC power.