475024-303

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Thermal-thermoelectric Peltier modules are used to transfer heat from one side to other by the application of electrical current. The 475024-303 Peltier module is a customized version for general purpose applications. It is designed for operating temperatures ranging from -50°C to +50°C in demanding applications like heat sinks, compact air coolers, condensation prevention and temperature sensors.

The Basic Working Principle

A Peltier module consists of an array of thermoelectric cells. Each cell consists of two conductors (generally n- and p-type semiconductors), connected between two junctions. When a electric DC current is passed through the cell, it generates heat at one junction and cold at the other junction. Since the cell is reversible, reversing the direction of current also reverses the direction of heat transfer. The energy transferred from one side to other is directly proportional to the current supplied.

Advantages

The 475024-303 Peltier module offers many advantages over conventional cooling methods such as air conditioners and refrigerators. It is extremely efficient, with thermal efficiency as high as 86%. It is also compact, lightweight, and highly reliable. It is virtually noiseless and has low power consumption (less than 0.5W/m2). It is easy to install and does not require any additional cooling equipment.

Applications

The 475024-303 Peltier module has a wide range of applications. It is used in portable cooling systems, industrial temperature control systems, heating and cooling medical instruments, cooling computer chips and CPUs, cooling CCD cameras, maintaining the temperature of lasers, heat pumps and air-conditioners. It is also used in automotive applications, consumer electronics, metering, testing, and laboratory research.

Safety Considerations

Since the 475024-303 Peltier module produces both heat and cold, careful consideration must be taken to ensure safe operation. It is important to not exceed the recommended module wattage as this can lead to overheating, which can result in permanent damage and/or reduce the overall life span of the device. It is also important to make sure that the power supply is constantly monitored for any unwanted variations.

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