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Current Sensing
A very low value resistor with a four-terminal connection allows the current to pass through the resistor with minimum power loss and still measure the IR drop to monitor the current. Current sensing of very large amounts of current requires a correspondingly large resistor with a suitable heat sink to draw away the heat generated. Vishay Foil technology lends itself uniquely to this application because the flat foil is bonded to a thin ceramic backing which can dissipate considerable heat to the sink below. The resistors’ very low temperature coefficient prevents any error drift as a result of self-heating due to high currents.

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SeriesI-ButtonProduct ImageFunctionTypeDescriptionMountingMin. Tolerance (%)TCR (ppm/C)Resistance (min) (ohm)Resistance (max) (ohm)
ResistorsResistors, Fixed303337 Bulk Metal Foil Technology CSM3637F, with Screen/Test Flow in Compliance with EEE- INST-002 (Tables 2A and 3A, Film/Foil, Level 1) MIL-PRF-55342 and MIL-PRF-49465Surface Mount0.15.00.10.2
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ResistorsResistors, FixedHigh Precision Metal Strip Resistor (4-Terminal)Surface Mount0.115.00.0010.2
ResistorsResistors, FixedBulk Metal® Foil Technology High Precision, Current Sensing, Power Surface Mount Resistor with Rated Power up to 3 W and TCR to 0 ±5 ppm/°CSurface Mount0.110.00.050.2
ResistorsResistors, FixedBulk Metal® Foil Technology Ultra High Precision, Current Sensing, Power Surface Mount, Metal Strip Resistor with Improved Rated Power to 5W, Max Current to 40A, Resistance Value from 3 mR, TCR to ± 15 ppm/ °C MaxSurface Mount0.115.03m100m
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ResistorsResistors, FixedBulk Metal® Foil Technology Ultra High Precision, Current Sensing, Power Surface Mount, Metal Strip Resistor with Improved TCR to ±5 ppm/ °C MaxSurface Mount0.15.03m50m
Resistors,FixedResistorsUltra High Precision LED Bulk Metal Foil ResistorsSurface Mount0.013.00.3500
Resistors,FixedResistorsUltra High Precision LED Bulk Metal Foil ResistorsSurface Mount0.23.00.310
ResistorsResistors, FixedPrecision, Low Value, Current Sense, Shunt Resistors, 4 Lead Kelvin Connected DeviceSThrough Hole0.115.00.0050.25
ResistorsResistors, FixedHigh Precision, Current Sensing Chip Resistor (4-Terminal)Surface Mount0.515.00.11.0
ResistorsResistors, FixedHigh Precision, Current Sensing Chip Resistor (4-Terminal)Surface Mount0.50.20.310
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ResistorsResistors, FixedHigh Precision, Current Sensing Chip Resistor (4-Terminal)Surface Mount0.12.00.011.0
ResistorsResistors, FixedHigh Precision Surface Mount Current Sensing Chip Resistor with Power Rating to 1 W, Temperature Coefficient of Resistance of ± 2 ppm/ °C and Load Life Stability of ±0.015%Surface Mount0.12.010m10
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ResistorsResistors, FixedHigh Precision Power Current Sense Resistors Z-basedSurface Mount0.10.050.31
ResistorsResistors, FixedUltra High Precision Z-Foil Surface Mount Current SensingSurface Mount0.20.050.310
ResistorsResistors, FixedBulk Metal Foil Technology Conformally Coated Precision Current Sensing ResistorsThrough Hole0.110.00.0050.2
ResistorsResistors, FixedUltra High Precision Foil Power Current Sensing ResistorThrough Hole0.022.00.2500
ResistorsResistors, FixedUltra High Precision Z-Foil Power Current Sensing ResistorThrough Hole0.020.050.25500
ResistorsResistors, FixedHigh Precision 4-Terminal Power Current Sensing ResistorsThrough Hole0.53.00.0050.25
ResistorsResistors, FixedBulk Metal Foil High Precision 4-Terminal Power Current Sensing ResistorsThrough Hole0.11.00.25500
ResistorsResistors, FixedNew Generation Of Power Current Sense ResistorsThrough Hole0.010.050.25500
ResistorsResistors, FixedNew Generation Of Power Current Sense ResistorsThrough Hole0.010.050.005500
ResistorsResistors, FixedNew Generation Of Power Current Sense ResistorsThrough Hole0.010.050.25500
ResistorsResistors, FixedNew Generation Of Power Current Sense ResistorsThrough Hole0.010.050.005500
ResistorsResistors, FixedHermetically Sealed and Molded Power and Current Sensing ResistorsThrough Hole0.012.00.0580K
ResistorsResistors, FixedHermetically Sealed and Molded Power and Current Sensing ResistorsThrough Hole0.012.00.0580K
ResistorsResistors, FixedHigh Precision Power Current Sense Resistors Z-basedThrough Hole0.010.050.25500
ResistorsResistors, FixedPrecision Foil Power Resistors in TO-220 Configuration, 4 Lead Kelvin Connected Device - Highly Recommended for Precision Applications ≤ 100 ΩThrough Hole0.012.00.510K
ResistorsResistors, FixedPrecision Foil Power Resistors in TO-220 Configuration, 4 Lead Kelvin Connected Device - Highly Recommended for Precision Applications ≤ 100 ΩThrough Hole0.012.00.5500
ResistorsResistors, FixedPrecision Foil Power Resistors in TO-220 Configuration, 4 Lead Kelvin Connected Device - Highly Recommended for Precision Applications ≤ 100 ΩThrough Hole0.012.0510K
ResistorsResistors, FixedPrecision Foil Power Resistor, TO 220 Configuration, 4-Terminal ConnectionSurface Mount0.012.00.510K
ResistorsResistors, FixedPrecision Foil Power Resistor, TO 220 Configuration, 4-Terminal ConnectionSurface Mount0.012.00.5500
ResistorsResistors, FixedPrecision Foil Power Resistor, TO 220 Configuration, 4-Terminal ConnectionSurface Mount0.012.0510K
ResistorsResistors, FixedPrecision Foil Power Resistor, TO-220 ConfigurationSurface Mount0.010.05510K