ROX075499KFNLB Resistors

Through Hole Resistors

Through Hole Resistors, often referred to as THRs or TPRs, have long been one of the oldest and most common types of resistors used in electronic circuits. They are often found in various consumer electronics, industrial applications, medical, and automotive devices. They are manufactured in various sizes and shapes, and come in a wide variety of packages.

The ROX075499KFNLB is a two-terminal, through-hole resistor whose leads are mounted into a hole in a printed circuit board. The size of the hole varies from 4 to 8mm and the part is mounted through the board by soldering it into place, thus creating a secure connection. The resistor is typically coated with a thick layer of silver, which creates a good electrical connection between the component and the printed circuit board.

Application Field

The most common application for through-hole resistors is in power supply applications, such as with 12V and 24V DC power supplies often seen in consumer electronics, such as computers, laptops, and TVs. They are also used in various RF circuits, where their speed and accuracy are of utmost importance.

Through-hole resistors are also used in a variety of other applications, such as in motor control circuits, where their low noise and wide temperature range make them suitable for use in the most demanding applications. In addition, they can be used in circuits requiring high current or voltage levels, such as in power supplies and electric motors. Another application area of through-hole resistors is in audio systems, where their high tolerance and low EMI levels make them particularly suitable for such applications.

Working Principle

When a voltage is applied to the terminals of the resistor, the difference in potential causes an electrical current to flow between the two ends of the resistor. This current is limited by a certain resistance value based on the characteristics of the resistor, and is referred to as the "ohmic value". The current limits the flow of electricity through the resistor and prevents damage to the circuit.

The most common type of through-hole resistor is the “carbon-film” resistor, which includes a carbon-coated surface surrounding a small ceramic pellet. These resistors are stable and accurate in use, and are able to withstand high temperatures, and thus are well-suited for use in automotive applications.

The ROX075499KFNLB is a through-hole resistor that offers a relatively high power rating, suitable for use in a variety of applications. It is characterized by an accurate resistance value of 1.3Ω, with a tolerance of 0.2%. The temperature coefficient of this type of resistor is 0.2%, making it suitable for use in high temperature environments such as power supply and automotive applications. The resistor also features an integrated surge-protection function, making it suitable for use in environments prone to surges and power spikes.

Conclusion

Through hole resistors have been around for decades and remain one of the most popular components found in electronics circuits. The ROX075499KFNLB is a through-hole resistor designed for high power applications, and offers an accurate resistance value with a wide temperature range and high reliability. It is suitable for use in a variety of applications, including power supply and motor control, and is capable of handling high temperatures and power surges.