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AR, FCR, RCA, RCN Series are formed by vacuum depositing a resistive alloy on a usually flat substrate of ceramic.
Photo-lithographic or similar techniques are used to define the final geometry and interconnecting traces.
This technology provides for close ratio matching and tracking in a network, as well as low stand-alone temperature coefficient and resistance tolerance.
Types includes ultra precision (AR), precision (FCR), array (RCA), and networks (RCN).