scope:

This specification covers the general requirements for accurate, wire-wound, fixed resistors having a maximum resistance tolerance of 1 percent, with the windings suitably protected against high humidity. The resistors are suitable for continuous full-load operation at any ambient temperature up to 125°C, and derated up to 145°C (see figure 3). They are not suitable for application where alternating current (ac) characteristics are of critical importance. A table which provides a summary of performance characteristics for this type of resistor is included in supplement 1.