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Resistors tout 4,000Vac dielectric withstanding voltage

Posted: 14 Oct 2008 ?? ?Print Version ?Bookmark and Share

Keywords:power resistor? dielectric voltage withstanding? low resistance?


TT electronics IRC has raised the dielectric withstanding voltage of its high density power resistors to 4000Vac. Designated the MHP150 through MHP600 Series, the resistors are offered in power ratings ranging from 150W to 600W.

The robust high voltage, high power resistors are designed for high voltage motor drives and military and medical x-ray equipment, along with pulse generators, high frequency amplifiers and power supply snubbers.

"The wide range of power ratings not only allows design engineers to specify the appropriate resistor to meet their specific application, but customers are now able to employ these resistors in high voltage circuits as well," said Gary Bleasdell, thick film business unit director for IRC. "Along with the high dielectric withstanding voltage rating, the SOT-227 style resistors also feature extremely low thermal resistance, high impulse power capability, superior vibration handling, and an extremely low series inductance of less than 15nH."

The UL94V0-approved MHP150 to MHP600 series resistors feature power ratings of 150-, 200-, 250-, 300-, 550- and 600W, with a dielectric withstanding voltage rating to 4,000Vac. Resistance range is from 0.1? to 1K?, with tolerances available from 1 percent to 5 percent, and TCRs of 100ppm/C when R>=1?, and 250ppm/C when R

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