Key Features:

• Lower self-heating or temperature rise per watt
• Low TCR and Low EMF for greater thermal stability
• Excellent overload and surge current handling capabilities

More Features of PRC's Current-Sensing Shunts:

• Dependable and repeatable measurements under load - Without this feature the voltage drop across a low value element will no longer be a linear function of current.
• Thru-Hole or SMD Designs - (1) are ideal in amplifier circuits and accurate voltage drop applications. (2) Offer excellent thermal transfer to base and better overload and surge current handling capabilities
• Hot-Tinned Copper Terminals - for better solder wetting, longer shelf life and higher current-carrying capacities.
• Lower Ohmic Values - to one milliohm (0.001) ... and closer resistance tolerances to ±0.005%.
• Very Low TCR Characteristics - 0±15ppm (Standard) - and Special TCRs to 0±10ppm for operation over a wider temperature span and provide greater stability under load
• Low Thermal EMF Construction - 1microvolt/°C. with respect to the copper terminals. This low EMF construction together with PRC's "single-joint" 4-terminal design will eliminate "lead-out" resistance variations, contact resistance and annoying thermal electric effects generally associated with very low resistance values.
• Perform like - a "precision instrument"

PRC Facts:

Why is Stability Vs. Time so important?

• Stability is the quality to resist permanent change ... and must be designed into the parts from the start. It is very difficult to stabilize or condition a general-purpose resistor and be confident that it will meet a critical application.
• All stability specs at PRC are designed for precise requirements - even if you specify 1% resistance tolerances.
• Low EMF construction with respect to the copper terminals is Standard at PRC. .

PRC Tips:

• Many low value tin oxide designs have thermocouple errors as large as 100 microvolts per degree C. which could degrade circuit performance. Try to avoid thermal gradients that could cause a large temperature difference across the low value resistor ... and specify with low EMF construction.


• Reflow soldering SMDs/SMTs is strongly discouraged for precision resistance tolerances closer than +/- 0.25% due to the delicate nature of the component.

Download our Hand Soldering Profile Guidelines (PDF)

• Be sure to "Heat Test" all delicate SMDs that will be exposed to temperatures above +125°C.