4116R-2-151LF

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4116R-2-151LF Application Field and Working Principle

The 4116R-2-151LF is part of the fourth-generation 4116 Series of resistors from Bourns. It is known as a SMD (Surface Mount Device) resistor array, and its resistor network configuration has two (2) resistors in series–which are labeled R1 and R2. The two parallel resistor elements have a common lead that is an output, while the two others have leads that are individually connected to the input. It is typically referred to as a dual-resistor package, as it combines two resistors in a single miniature circuit.

The resistance value of this resistor is 151 ohms, which is a standard value of resistance used for many common applications. The resistor array has a maximum power dissipation of 200 mW. It is constructed using ‘nano-platform’ technology which has improved performance and offered superior reliability and long-term stability. This resistor array is lead (Pb) free, RoHS Compliant, and is available in tape-and-reel format.

Application Field

The 4116R-2-151LF resistor array is used in a variety of different circuit designs and applications. It is designed to provide a stable voltage in simple circuits. This resistor can be used to create a voltage divider, which is a circuit that divides a voltage into two components with differing values. While standard resistors offer only one value, the dual resistors of the 4116R-2-151LF allow two distinct values to be attained, offering a wider range of applications.

The resistor array is also used in power supply designs, as it can provide a stable voltage as current is drawn up. It is often found in active low-pass filters used in loudspeakers, mixers, and amplifiers, and for providing RFI/EMI attenuation and dampening of high frequency signals.

Another commonly seen application is in power-saving LED lighting situations, as the resistor array helps to create a stable voltage supply and current control for LED lights. It is also used in motor control applications, such as providing a voltage reference for digital potentiometers.

Working Principle

The 4116R-2-151LF resistor array operates on the principle of ‘resistive division’, where the voltage output is controlled by the ratio between the two resistors. For instance, a 4116R-2-151LF resistor array offers a nominal output ratio of 4:1. Thus, in a circuit the two parallel resistors, R1 and R2, offer a voltage that is divided so that the current output is divided in this ratio.

The two resistors of the resistor array are interconnected so that the output, which is the common lead, is a voltage that is an average of the two resistors. Naturally, this means that as one resistor’s value varies, so too does the output voltage. This is why the resistor array is a great solution for digital potentiometer applications, as it provides a stable voltage even as the resistance is changed.

In addition, the two resistors of the resistor array act as a low-pass filter; allowing the desired frequencies to pass, while filtering out any extraneous currents. This is why the resistor array is commonly found in audio applications, for controlling the frequencies of the sound.

The 4116R-2-151LF provides maximum performance and reliability in a small package. The combination of nano-platform technology, superior reliability, and minimum resistance allows for an extremely efficient resistor array, which is suitable for many different types of common applications.

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