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Temperature Controller

Photonics Spectra
Apr 2011
Wavelength Electronics Inc.Request Info
 
The RHM5K-CH unipolar temperature controller from Wavelength Electronics achieves precision control at off-ambient temperatures. The proportional-integral-derivative control loop drives resistive heaters and thermoelectric coolers. Offering a small footprint and high stability of <0.003 ºC, it supplies a drive current of up to 5 A. Onboard 12-turn trimpots control temperature set point, proportional gain and output voltage limit, all of which are user-adjustable. A single 10-pin terminal strip provides easy access to the DC supply, sensor, resistive heater and measurement connections. Features include single supply operation from 5 to 30 V and >27-V compliance with 30-V input. Heat sinking then becomes critical, and a safe operating area tool is available to ensure that the maximum internal power dissipation of the package is not exceeded.


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GLOSSARY
unipolar
Refers to the transistors in which the working current flows through only one type of semiconductor material, either P-type or N-type. In unipolar transistors, the working current consists of either positive or negative electrical charges, but never both.
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