Three RESI products designed for high current precision measurement: Shunt, PCB+Shunt and smart shunt (current sensor), the price is 10 times difference, let’s take a look at why today.

Resi’s high voltage resistor HVLR series has excellent moisture resistance ability, we put 20pcs HVLR series resistors into an autoclave at 125℃, 0.142Mpa for one hour, to see the value shift. The test result turns out the shift is within ±500ppm.

RESI’s ARCS series high current shunt resistor is produced automatically in our self-developed production line, easily achieve one-item-one-code for individual product traceability.

The good performance of precision current sensor resistor is based on high quality of raw material and EB-Welding process. Our equipment with high vacuum levels ensures fewer impurities during welding, resulting in higher welding quality.

RESI’s HVLR series has value ranges of 1 KΩ to 1 GΩ, tight tolerance up to ±0.1%, maximum working voltages reaching 48 KV, good voltage coefficient of resistance (VCR) performance, and is the key parameter of a high-voltage resistor.

RESI’s self-developed CB Series is an automotive grade current sensing module.The accuracy of this series can reach 0.1%.

To reach tolerance as tight as 0.5% for low ohm current sensing resistor, trimming process is hardly to avoid, however trimming process will easily cause hot spot issue and long-term reliability will be negatively affected.