The RLR20C4303GRT/R is a surface mount, current sense resistor from Vishay Intertechnology. It features a low TCR of ±50 ppm/°C, high peak current rating of 3.7 A, and a high accuracy tolerance (±1 %). It has an operating temperature range of -55°C to +165°C, and is designed for use in automotive, consumer, and industrial applications. The 4-terminal design allows for better temperature compensation, current carrying capacity, and increased reliability. The device is constructed from a thick-film resistive element, which is laser trimmed for high accuracy and precision.