OM18G5E-R58

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Through hole resistors are key elements in electronic circuits and are widely used in industrial control systems and communication equipment. OM18G5E-R58 is a type of through-hole resistor with high accuracy. It is widely used for withstanding large current and applied in power electronics, lighting fixtures and other electronic applications. This article will provide an introduction to OM18G5E-R58, touching on its application field and working principle.

Application Field

OM18G5E-R58 is over 8 times more powerful, with a power rating up to 360W and a working voltage up to 10KV, than traditional through-hole resistors. These features make this type of resistor an ideal choice for high power and high voltage applications like motor control, electric traction and power grid equipment. The power grid equipment and drive motor can even be in 100MW or above. Compared to other resistors, OM18G5E-R58 is not only suitable for high power but also small currents. Additionally, it has a great tolerance of environmental temperature and humidity which can make this resistor suitable for various oscillators, analog integrated circuits, rectifiers and shunt regulators.

On the other hand, the accuracy within 1-150KV of OM18G5E-R58 is higher than traditional through-hole resistors, which is suitable for considerable applications in motor control, machine control and etc.

Working Principle

OM18G5E-R58 is based on the principle of Ohm\'s law. It is an AC resistive element that requires the relationship between I (current) and U (voltage) to ensure that the power dissipated in the resistor is V*I, not exceeding OM18G5E-R58’s rating power. As the current increases, heat is produced, resulting in the resistor power going up and the chip temperature increasing. This subsequently raises the temperature of the internal material inside the resistor. As the temperature of the interior power element of OM18G5E-R58 increases, the power coefficient tolerance decreases. This is the key of its accuracy in all kinds of I, U relationship. The actual power of OM18G5E-R58 is much higher than the traditional through-hole ones. That’s why it’s a big improvement in this type of resistor.

At the same time, because of its unique design, OM18G5E-R58 features superiority in over-load ability. It can work normally even when the short-term current is more than 5 times bigger than rated. This makes it a perfect choice for high power loads and other electric products.

Conclusion

In conclusion, OM18G5E-R58 is a type of through-hole resistor with high accuracy and mainly used in high power, high voltage and current control applications. Its power rating up to 360W and working voltage up to 10KV gives it the advantage over traditional resistors. It is the ideal choice for motor control, electric traction, power grid equipment, rectifiers, shunt regulators and etc. Thanks to its high overload ability, it can work normally even when short-term current is more than 5 times bigger than rated.

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