LR1F261R

Through Hole Resistors LR1F261R application field and working principle

A through hole resistor, also known as a leaded resistor, is an electronic component composed of a resistive element, and two wire terminals for connection to a circuit. It is designed for through hole mounting in printed circuit boards, plug-in boards, and other electronic devices. Through hole resistors are widely used in a variety of applications, from basic circuits such as switch circuits, to high speed signal conditioning, to linear current sensing.

LR1F261R Characteristics

The LR1F261R is a through hole resistor designed by Panasonic. It is a non-inductive, high-power resistor with a low voltage drop and high heat dissipation. The LR1F261R is resistor is rated for a maximum operating temperature of +150°C, and a voltage rating of 250V. It has low thermal resistance and a maximum resistance of 1.2kΩ. It also features low power dissipation, low thermal noise, and a high accuracy tolerance.

Applications

The LR1F261R is mostly used in high power applications such as power supplies, power converters, and motor control systems. It is also used for current sensing, voltage limiting, ringing suppression, power inrush, PTC, and transient voltage suppression applications. It is also capable of replacing other through hole resistors in applications such as current measurement, soft-start, and current sensing applications.

Working Principle

The working principle of a through hole resistor is based on Ohm\'s Law. The electrical resistor consists of a resistive element that limits the flow of electric current through it. The resistance of the resistor is proportional to the amount of current flowing through it, and it is inversely proportional to the voltage applied across it. As the current passing through the resistor increases, the voltage drop across it increases. As the voltage increases, the heat dissipation will also increase due to the resistive nature of the element.

The power dissipation of a resistor is the product of the voltage and the current passing through it. When the voltage across the resistor equals the rated voltage of the resistor, the power dissipation reaches its peak and the resistor begins to heat up. When the power dissipation is higher than the resistance\'s rated power dissipation, the resistor will begin to overheat and damage can occur.

The LR1F261R is designed with a low voltage drop and high heat dissipation, so it is capable of dissipating high amounts of power without overheating. It is also designed with low thermal resistance and a maximum resistance of 1.2kΩ, making it suitable for high power applications.

In conclusion, the LR1F261R is a through hole resistor by Panasonic designed for high power applications. It has a low voltage drop and high heat dissipation. It is capable of dissipating high amounts of power without overheating and can be used in a variety of applications.