RT1721B6TR7

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Resistor networks and arrays are necessary components in electronic circuits and systems. RT1721B6TR7 is one type of resistor networks or arrays which has been developed by rectron. It is a 16-pin surface mount array resistor with overall package size measuring 2.3 mm (L) x 1.2 mm (W) x 1.3 mm (H). It consists of two four-terminal networks integrated into a single package. It is specially designed to provide low-impedance connections with contact pads suitable for leadless chip carriers.

RT1721B6TR7 Features

• High-density 16-pin array resistor
• Two four-terminal networks in one package
• Low-impedance connections with contact pads suitable for leadless chip carriers
• Excellent solderability and electrical performance
• Small size of 2.3 x 1.2 x 1.3mm
• Compatible with most lead-free processes

RT1721B6TR7 Application Field

RT1721B6TR7 can be used in a wide range of applications including power management, signal processing, and port protection. Its compact size and high-density make it ideal for applications in portable devices such as cell phones, laptop computers, tablets, and PDAs. It can also be used in automotive, medical, and consumer electronics.

Furthermore, RT1721B6TR7 can be used in various types of circuit designs, including those requiring DC/DC converters, power amplifiers, audio and video signal processing, RF circuits, and pulse-width modulated designs. The four-terminal network design can be used to introduce various network functions such as filter networks, attenuators, neutralization, and feedback.

RT1721B6TR7 Working Principle

RT1721B6TR7 is a resistor array with two four-terminal networks, which are made up of 16 resistors. The four terminals of each network connect two resistors in series. One of those two resistors has two types of characteristics due to its construction. The first type has a low resistance, which limits the current in the circuit. The other type has a higher resistance, typically equal to the rated resistance of the resistor network.

The resistor network limited circuit works on the principle of current sharing. Consider a simple circuit with two resistors in series. The current flowing through each resistor is determined by its resistance, which in turn is related to the load current. If the resistors are equal in resistance, the current through each would be equal. However, if the resistors have different resistances, the current through each resistor will be unequal. The current through the lower resistance, or high-impedance, resistor will be higher than that of the higher resistance, or low-impedance, resistor.

In RT1721B6TR7, four terminals are connected to the two resistors in series, with two terminals connected to each resistor. The outer terminals are for the higher resistance, or low-impedance, resistor, and the inner terminals are for the lower resistance, or high-impedance, resistor. This allows current to be limited or controlled as desired, depending on the orientation and polarity of the terminals and resistors. The rated resistance of the network can be adjusted by changing the relative resistance between the two resistors.

Conclusion

RT1721B6TR7 is a 16-pin surface mount array resistor with two four-terminal networks integrated into a single package. It is specially designed for low-impedance connections and suitable for leadless chip carriers. It can be used in a wide range of applications including power management, signal processing, port protection, and RF circuits. Its working principle is based on current sharing and the rated resistance of the network can be adjusted by changing the relative resistance between the two resistors.

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