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Vishay Intertechnology Unveils WSBS Power Metal Strip Battery Shunt Resistors

Vishay Intertechnology

New 36 W Devices From Vishay Intertechnology Feature M3 and M4 Tapped Holes to Assist in PCB Mounting, Offer Low Resistance Down to 50 µΩ

Vishay Intertechnology announces the introduction of the new WSBS8518…M3 and WSBS8518…M4 36 W Power Metal Strip battery shunt resistors. The new devices features M3 and M4 tapped holes, respectively. With extremely low resistance values down to 50 µΩ in the 8518 case size, the Vishay Dale devices increase accuracy and lower costs compared with Hall Effect current sensing solutions, while their tapped holes aid in PCB mounting, provide extra support against vibration, and offer a location to attach voltage sense pins.

The devices released features:

  • A proprietary processing technique that produces extremely low resistance values of 50 µΩ, 100 µΩ, 125 µΩ, and 250 µΩ.
  • These low values allow for more accurate data to determine battery charge and discharge, thus helping designers meet specific customer battery management requirements for applications in gas, diesel, hybrid, and electric cars and trucks, as well as electric forklifts, UPS systems, and other heavy industrial applications.
  • The WSBS8518…M3 and WSBS8518…M4 feature a solid metal manganese-copper alloy resistive element with low TCR (± 20 ppm/°C) and a welded terminal to element connection that allows for up to 848 A of continuous current (value dependent).
  • The resistors offer low inductance values of < 5 nH, low thermal EMF down to < 3 µV/°C, and an operating temperature range of -65 °C to +170 °C.

The devices are RoHS-compliant, halogen-free, and Vishay Green.

Availability

Samples and production quantities of the WSBS8518…M3 and WSBS8518…M4 are available now, with a lead time of 10 to 12 weeks for larger orders. s.

Further info: www.vishay.com

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