MIL-PRF-39002A, PERFORMANCE SPECIFICATION: RESISTORS, VARIABLE, WIREWOUND, SEMI-PRECISION, GENERAL SPECIFICATION FOR (01-FEB-1999) [SUPERSEDING MIL-R-39002]

MIL-PRF-39002A, PERFORMANCE SPECIFICATION: RESISTORS, VARIABLE, WIREWOUND, SEMI-PRECISION, GENERAL SPECIFICATION FOR (01-FEB-1999) [SUPERSEDING MIL-R-39002]., This specification covers the general requirements for semi-precision, wirewound, variable, resistors having a resistance element of wire, wound on an arc shaped insulated form, so that a contact bears uniformly on the resistance element, when adjusted by a contact shaft. The electrical output (in terms of percent of applied voltage) is linear with respect to the angular position of the contact arm. These resistors are capable of full-load operation (when the maximum resistance is engaged) at a maximum ambient temperature of 85 DEG C, and are suitable for continuous operation, when properly derated, at a maximum temperature of 135 DEG C. These resistors have a tolerance of ±5 percent.