The Seaward RS3/50 Cropico RS3 High Stability Resistance Standard, 50 Ohms is constructed using carefully selected low temperature coefficient wire, depending on the value, mounted on formers which have a high mechanical stability. The wires are wound in a strain free manner and heat treated to remove any stresses. They are also artificially aged under the strictest control. The result is a standard of high quality with long term stability and permanence of calibration combined with a low temperature coefficient. The RS350 also offers a high current carrying capability which makes them ideal for applications where precise current needs to be measured. This product has a resistance value of 50 Ohms.