Help identify this component

What is this component? It's between two ICs, probably on a communication bus. One is a microcontroller and the other is some sort of memory. It's as small as an smd capacitor or resistor.

Help identify this component


It's a (hand-soldered) quad resistor array. The resistors' value is indicated the same way it's done on single resistors: the first two digits for significant digits, and the third for the multiplier (power of 10). So 220 should be read as \$22 \times 10^0 = 22\Omega\$.

Help identify this component

SMT resistor arrays exist in dual, quad and octal versions. They're often used on microcontroller buses, either in series with for example data lines, or as pull-ups for the address bus. Arrays are space-saving and cheaper than single parts. (Placing a part is several times more expensive than the cost of the part itself, so placing 1 array costs only 1/4 of placing 4 single resistors.) The quads are most often used, even for wider buses because they're easier to layout on complex boards. For the pull-ups there are resistor networks with one side of all resistors connected to a single pin.

Help identify this component

Just like single resistors the arrays exist in different sizes, where the size is indicated in tens of mils (hundredths of inches). So a 0804 package is 80mils x 40mils (2mm x 1mm). Convex and concave pinouts exist.

Help identify this component

There are also capacitor networks, as well as combined resistor-capacitor networks.
Manufacturers include Vishay, Yageo and Rohm.

It's a quad 22.0 Ohm resistor........

Resistor network. A chip that contains resistors in a latter or isolated configuration.

Category: resistors Time: 2011-01-24 Views: 0
Tags: resistors

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