One of the highest-power SMD resistors on the market

The thermal design has been optimised to provide a greater heat-reduction efficiency, resulting in a lower surface temperature-rise, when compared with other (lower power) SMD resistors on the market. They also feature excellent overload characteristics with a surge capacity of up to five times rated power for five seconds.

The RWS is a family of compact, precision power resistors are manufactured to the highest standards; reliable and robust but still achieving a drift of less than 1% and TCR of 10-90ppm/°C when under rated conditions. The RWS resistors also have excellent stability and TCR characteristics: ±90ppm/°C (R1 - R99), ±50ppm/°C (1R - 10R) and ±20ppm/°C (more than 10R). The operating temperature range is from -55 to +275°C for the RWS7 and RWS10 versions, and -55 to +155°C for the rest of the range. The maximum working voltage is (PxR) ½.

Low inductance versions are also available. The RWS power resistors are RoHS compliant, designed for easy assembly. The life specifications have been measured at a test temperature of +70°C ±2°C, with a rated DC continuous working voltage applied, 1.5 hours on and 0.5 hours off for 1,000 hours.