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New high-precision battery shunt from Vishay improves RTC performance

Sep 24 2019 2019-09 Connectors Vishay
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Vishay announces the launch of the new WSBS8518... 34 and WSBS8518... The 35 Power Metal Strip battery shunt features a solid metal Nichrome resistance layer with a calibration slot and a "boost" design for connectors to improve TCR performance (down to 10 ppm/C) and improve accuracy over the operating temperature range.

     Vishay announces the launch of the new WSBS8518... 34 and WSBS8518... The 35 Power Metal Strip battery shunt features a solid metal Nichrome resistance layer with a calibration slot and a "boost" design for connectors to improve TCR performance (down to 10 ppm/C) and improve accuracy over the operating temperature range.

 

     The device has a very low resistance, only 100 µΩ, and a rated power of 36 W, which is more accurate and less costly than manganese alloy shunt and Hall effect galvanometer. The two sensing pins of the 35 assist in the PCB installation process, keeping the shunt contact position consistent.

 

     The new resistance has an overall dimension of 8518 and uses a unique machining process to achieve extremely low resistance values and support high currents. Devices for battery management in gasoline, diesel, hybrid and electric cars and trucks, as well as electric forklifts, large UPS systems and other heavy-duty industrial applications.

 

     WSBS8518... 34 and WSBS8518... 35 Fully welded construction, resistance self-inductance value less than 5 nH, thermoelectric motive force (EMF) less than 1.25 µV/°C, operating temperature -65 °C to +170 °C. Resistors comply with RoHS and Vishay green standards and are halogen-free.

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