How to find the right Resistor Networks AI guide

Written by an AI model from its trained knowledge.

What the AI looks for in Resistor Networks

Circuit topology: Bussed (all resistors share one common pin) suits pull-ups and pull-downs; isolated (independent pairs of pins) suits series termination and LED current limiting; dual-terminator types suit bus termination. The wrong topology looks identical on the outside but will not work in the circuit.
Pin count and package: Through-hole SIP and DIP packages use a 0.1 in (2.54 mm) pitch; SMD arrays come in chip sizes such as 0603 x4 or 1206 x4 convex or concave. Match the exact footprint. Element count and pitch must line up with the board layout and with the number of lines you need.
Pin 1 orientation: On bussed SIP parts, the common pin is pin 1 and is marked with a dot or bar; it must go to the supply or ground rail. A bussed network inserted backwards connects the common pin to a signal line.
Power per element and per package: Check both limits on the datasheet and stay within each one. Each element is usually rated well below what a discrete resistor of similar size would handle.
Ratio tolerance and tracking: For dividers and matched differential gain stages, select thin-film networks specified for ratio tolerance and TCR tracking, not just absolute tolerance. Matched elements on one substrate drift together, which is the main reason to use a precision network.

Bourns: Widest common range of SIP, DIP and chip resistor arrays (for example the 4600X SIP series).
Vishay: Thick-film arrays plus precision thin-film matched networks.
CTS: Long-established maker of SIP and DIP resistor networks.
Yageo: Inexpensive, standard SMD chip resistor arrays.
Panasonic: Well-specified SMD chip resistor arrays.

Ordering by resistance value alone without confirming bussed versus isolated
Mixing up convex and concave SMD array terminations, which use different footprints
Using thick-film arrays where matched ratio accuracy is required

Nine. One pin is the shared common, and each of the remaining nine pins connects to its own resistor.