CRA12E08315K0JTR

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Resistor Networks, Arrays

The CRA12E08315K0JTR is a resistor network array designed for surface mount application. It is made with small surface-mounted, fixed resistors. These resistors are designed to reduce the noise from RF signals, and provide impedance matching in various electronic circuits.

A resistor network array is a circuit of several resistors arranged in a specific order and configuration. The CRA12E08315K0JTR is an example of a resistor network array, where twelve 0.25W resistors are arranged in a 3 row x 4 column pattern, and the total resistance is 315K Ohm. It uses a combination of carbon, NiChrome and tantalum resistors.

The application field of the CRA12E08315K0JTR is wide. It can be used in telecommunications, smart cards, manufacturing, and test and measurement equipment, since the device is stable over a wide operating temperature range from -25°C to +85°C. It is also useful in automotive applications such as fuel gauge circuits.

The CRA12E08315K0JTR also has another application in power supplies and DC to DC converter circuits. A fresh idea is to be able to use the resistor array in DC-DC converters using current mode control. This type of control has the advantage of having faster transient response, better load regulation, and improved emissions.

The working principle of the CRA12E08315K0JTR is based on the combination of the individual resistors that make up the array. By arranging the resistors in a specific pattern, it is possible to achieve a desired resistance value without the need for additional measuring devices. The resistors are arranged in such a way that the total resistance of all of the resistors is equal to the designated resistance value.

The important thing to consider is the thermal coefficient of the resistors. Carbon and NiChrome resistors have a negative temperature coefficient, while tantalum resistors have a positive temperature coefficient. When the ambient temperature of the environment varies, this can cause significant shifts in the resistance values of the resistors, and this affects the accuracy of the resistor array.

To overcome this problem, the CRA12E08315K0JTR has been designed with a combination of resistors in order to achieve a thermal coefficient that is more stable than individual resistors. By using different materials in combination, it is possible to create an average thermal coefficient that is close to zero, thus providing greater precision and stability.

The CRA12E08315K0JTR is an example of a resistor network array offering a combination of thermally stable resistors in an easy-to-install SMT package. It is a great option for applications requiring stable, accurate performance and a wide operating temperature range.

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