Vishay Intertechnology has announced a new Power Metal Strip meter shunt resistor that is said to be the industry’s first with sense leads designed to be soldered directly to the PCB, eliminating the need for costly flexible leads.
The WSMS2908 combines a 3 W power capability in the 2908 size package with resistance values down to 100 µΩ, allowing for increased accuracy in current meter shunt applications for industrial and consumer single- or multi-phase energy meters. With a tolerance of 5.0 %, the new resistor provides power companies with more accurate data to determine customer usage and to adjust billing terms.
The WSMS2908 features a 5-terminal connection design and an all-welded construction that contributes to its s electrical performance. The resistor offers inductance values of < 5 nH and a low thermal EMF of < 3 µV/°C.
Samples and production quantities of the new meter shunt resistor are available now.