ROX2SJ470R Resistors

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Through-hole resistors are essential elements in many circuits, controlling and stabilizing the current flow through a circuit to prevent components from being overburdened by voltage. Some of the most common types of through-hole resistors are the ROX2SJ470R series.

The ROX2SJ470R series is a ceramic cased non-inductive wirewound resistor with flame retardant epoxy coating that provides superior heat and overload protection. This resistor series is ideal for high power applications, allowing for a resistance range of 0.1 Ω to 100K Ω and a superior power rating of 1W to 20W. The resistor features an operating temperature range of -55°C to +155°C and a tolerance range of ±2%; this guarantees reliable operation through extreme operating conditions.

In order to adequately control the current flow, the ROX2SJ470R must be paired with a metal film resistor to compensate for self-heating and ensure accurate readings. The combination of the two resistors allows for a higher total power rating than the individual parts can provide when used together. With the high power rating of the ROX2SJ470R, it can be used in a variety of high-end applications, including power supplies, motor drives and LED drivers.

The working principle of the ROX2SJ470R is simple. Its resistance is determined by the thickness and length of the wirewound resistor. The thicker and longer the wire, the higher the resistance; the thinner and shorter the wire, the lower the resistance. This allows for precise control of the current flow. The resistor also provides a degree of thermal stability by the use of a ceramic shell that acts as a thermal barrier; it also acts as a radiation shield and reduces the noise from external sources.

The ROX2SJ470R series is an ideal choice for many high power applications. Its high power rating, superior heat and overload protection, and robust resistance range make it very attractive for use in high-end systems. Its precise control and thermal stability make it suitable for use in applications where pinpoint accuracy and reliable operation are essential.

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