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Wirewound resistors suit military, avionics systems

Posted: 28 Aug 2006 ?? ?Print Version ?Bookmark and Share

Keywords:TT electronics? IRC? RB/RBR? wirewound resistor?

IRC's RB/RBR Series wirewound resistors

TT electronics IRC Wire and Film Technologies Division has released an axial lead precision wirewound resistor designed specifically for military and avionics systems. Designated the RB/RBR Series, the resistors meet or exceed the stringent reliability requirements of MIL-R-93 and MIL-PRF-39005, the company said.

Typically configured as a precision voltage divider or current shunt, the RB/RBR Series resistors are suitable for applications where highly accurate measurement of voltage or current is required. These resistors are constructed by winding the resistance core in a controlled stress manner, then welding the terminations to reduce contact noise and thermal EMF. They undergo accelerated aging and additional testing to ensure precise accuracy and stability throughout its lifespan.

Available in axial and radial terminal configurations, power ratings for the RB/RBR Series resistors range from 0.125W to 0.5W. Standard tolerance ranges from 0.01 percent to 1 percent, and operating temperature range is -65C to 145C. IRC will also provide precision resistors with special TCR's, screening or other specifications to meet customer requirements.

The RB/RBR Series is part of IRC's extensive offering of full MIL-spec and commercial resistors. The IRC facility includes one of the industry's most comprehensive military-qualified test labs, according to the company.

Typical pricing for the RB/RBR Series resistors is $17.76 in quantities of 50. Lead time is from stock to 16 weeks.

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