CURRENT SENSING RESISTORS

These components have E-beam welded manganese-copper alloy elements giving high strength, stability andreliability. Low thermal EMF and TCR. Small size and minimal power loss. Minimal heat generation and surfacetemperature due to small total resistance. Propriety processing technique allows very low resistance values.Ideally suited for KWh meters and sampling sensor shunts. These units are also suitable for custom design.SPECIFICATIONSModel Power Rating Resistance Tolerance PMS 3W 100?R-500?R +-1%, +-5%, +-10% CHARACTERISTICS Values in [ ] mean change in ohmic value after testTemperature Range -55C-125C Temperature Coefficient d+-50ppm/C Internal Heat Resistance <10K/W Load Life Deviation <0.5% after 2000hrs. @80C DIMENSIONSResistance Value Component Thickness Rated Current d100?R 2.0mm 100A 120?R 1.5mm 80A 150?R 1.5mm 60A 200?R 1.2mm 60A 250?R 1.2mm 40A 300?R 1.0mm 40A 350?R 1.0mm 30A e500?R 1.0mm 30A DERATING CURVEORDERING PROCEDURE EXAMPLE