Shunt resistor designed for high current measurements

Posted By : Lanna Cooper
Shunt resistor designed for high current measurements

TT Electronics has announced E-Beam Welded Shunt­ resistors for industrial and automotive applications. The EBW8518 is an electron beam welded resistance element, sandwiched between large copper terminals with optional tin plating. Precision applications can make use of its one percent tolerance, 100ppm/°C TCR, 1µV/°C thermal EMF and separate ground pins to reduce errors.

The low measurement error of this resistor frees up the designer’s error budget and its low ohmic values reduces power loss. The EBW8518 provides the fullest selection of values in TT Electronics’ chosen range 50-250µΩ.

“EBW8518 features low self-heating which reduces equipment temperature and improves reliability for designers needing to manage temperature rise in compact power electronic assemblies,” said Stephen Oxley, Senior Applications Engineer, Applications and Marketing.

“­­­The robust electron beam welded technology and low thermal EMF of this resistor make it advantageous for HEV battery management, energy metering and welding power supplies.”

TT Electronics’ EBW8518 can replace similar products from key competitors. This includes the slightly different 8420 format (1mm shorter and 2mm wider) with which 8518 is normally interchangeable; both formats have the same 60mm mounting hole pitch.

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