4814P-1-270

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Resistor Networks, Arrays

The 4814P-1-270 is a miniature multi-chip, leadless surface mount IC package designed and manufactured in the United States by JH Technology Corporation. It combines the functionality of 1, 2, 3, 4, or 5 resistors into one very small package. The product is ideal for applications such as RF, microwave, and instrumentation, where space is at a premium, and a high degree of integration in a compact package is of paramount importance.

Application Field

The 4814P-1-270 is used in a variety of critical applications, such as RF circuity, computing, medical, automotive, military, consumer electronics, and computers. In RF applications, the product can be used as an attenuator, power divider, baluns, or mixers, and is able to support high frequencies up to 50GHz. In computing applications, the product can be used to improve the accuracy and reliability of high speed A/D and D/A converters by utilizing it as a precise resistor divider or compensated resistor divider. In medical applications, the product can be used for surgical instrumentation, medical imaging, patient monitoring, and pulse oximetry. In the automotive industry, the product can be utilized in engine control units, anti-lock braking systems, airbag modeling and diagnosis, emissions control, and fuel injection. Finally, in military applications, the product can be used for high precision electronic countermeasures, radar, satellite and missile systems.

Working Principle

The working principle of the 4814P-1-270 is quite simple. It uses the two-resistor divider equation, which states that the ratio of the voltage on one side of a resistor pair to the voltage on the other side is proportional to the ratio of the resistors in the pair. In these multi-resistor devices, the individual resistors are all connected in series, meaning that the voltage across all the resistors in the device is constant. Therefore, the ratio of the voltages at any two points in the network equals the ratio of the resistances of the two resistors at those locations.

The device includes both adjustable and fixed resistors, and is designed to operate over a wide temperature range. The resistance value of the adjustable resistors can be varied by changing the value of the trim resistor, and the fixed resistors are temperature compensated to ensure a stable resistance over a wide range of temperatures.

The 4814P-1-270 is an excellent choice for designers looking for a highly-integrated, surface mount device to reduce the number of discrete components in a particular application. The device is relatively inexpensive, and is especially well suited for today’s shrinking PCB designs.

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