current sense resistorsKOA Speer Electronics (Bradford, PA) introduced two current sensing resistors, the zero Ω SLZ and the 1W/2012 SLW07. The high current SLZ1 jumper chip offers a rated current of 44 A in a 2512 size. The SLW07 has an enhanced high power rating of 1 W in a smaller package size of 2010. KOA Speer's SLZ1 and SLW07 bBoth feature a wide temperature range of -55°C to +180°C. The SLZ1 has a max resistance of 0.5 mΩ, and the SLW07 is available in 0.5mΩ ~100 mΩ in both 1 percent and 5 percent tolerances. The chips' special electrode shape easily absorbs thermal expansion and shrinkage stress. The resistors are appropriate for applications such as:

  • DC to DC conversion and AC adaptors.
  • Notebook PCs.
  • Battery packs, m.
  • Motor controls.
  • Automotive engineering and management systems.
  • Low impedance connections.

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