This application calls for four resistors total; three need to be built on the most stable technology available, while the fourth works as a bridge completion sensor detecting the output from some function being measured. The resistors are matched as closely as possible and mounted in such a way that they can be kept at a common temperature in service. This function is best served by Vishay Foil resistors which have a remarkably low temperature coefficient, low thermal EMF, fast response to current change, and/or low power coefficient of resistance.