resistornätverk

A resistornätverk, or resistor network, is an electronic component consisting of a set of resistors connected in a fixed configuration to provide precise, stable voltage or current references, division ratios, or filtering functions. The network is typically manufactured as a small metal-foil or metal-oxide chip, a soldered to a substrate, or mounted on flexible board material. Because all the resistors inside the network are fabricated or welded together during the manufacturing process, tolerances, temperature coefficients, and cross‑talk between elements are tighter than if the resistors were assembled individually. This makes resistor networks commonly used in precision instrumentation, active filters, and calibration references.

Resistor networks come in several standard formats. The most common form is the surface‑mount 0.1‑inch array, which can contain 10, 20, or 40 resistive elements. The array is laid out in a grid; the number of rows can indicate whether the network is intended for use as voltage divider, current sense, or biasing. Low‑tolerance networks (1 % or better) are available for analog front‑ends, while high‑accuracy ±0.01 % networks are sold for metrology applications. Three‑terminal networks, where each resistor is addressed by its own pair of pins and common ground, allow precise selection of resistor values using a multiplexer or programmable interconnect.

Applications of resistornätverk include localised voltage dividers for PCB reference rails, input biasing networks for op‑amps, and programmable current sources. Their compactness and repeatability also make them suitable for mass production, where consistency between parts is critical. Because they eliminate the need for assembly wiring and reduce component count, resistor networks can help lower manufacturing costs while improving electrical performance.