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Through Hole Resistors

Through hole resistors occupy a significant niche in the world of electronics. They are used in countless applications, from simple circuit protection to complex digital control systems. In this tutorial, we will discuss the RN55C1434BB14 application field and working principle, as well as the applications and advantages of through hole resistors in general.

RN55C1434BB14

The RN55C1434BB14 is a specialized high-reliability, thick film chip resistor. It combines all the features required for harsher environment industrial applications, such as higher temperature air, oil or salt, and withstanding high temperatures and a longer life expectancy. It features extended temperature range, low noise levels and low thermal instability. The chip style construction allows for a wide variety of termination styles and footprints. It is CE, RoHS, and CSA compliant.

Applications

The RN55C1434BB14 has a broad applications field, including telecommunications, computing and aerospace systems, automotive electrical/electronic systems, consumer electronics, industrial machinery, instrumentation and control systems. It is often used in radio frequency modules, power supplies, DC/DC converters and magnetic components.

Working Principle

The RN55C1434BB14 comprises of two lead-free, electroplated and controlled thickness metal plates, one of which contains metal oxide filaments, and the other a resistor dielectric. The metal plates are separated by an additional spacer layer that serves to mechanically support the plates, provide insulation and provide an environment for the metal oxide’s chemical welding. The deposition of metal oxide filaments onto the plates forms an internal resistive element between the plates, and it is this element of the assembly that performs the function of impeding or controlling the flow of current between the plates in accordance with the desired resistance value. Through hole resistors have the advantage of a more precise current limiting than is possible in wirewound resistors, as well as being more resistant to heat and vibration.

Advantages of Through Hole Resistors

Through hole resistors offer increased accuracy and reliability in comparison to SMD (Surface Mounted devices) resistors. They are also easier to inspect and maintain than SMD resistors, and can be replaced if necessary with a minimum of disruption to the circuit. Another advantage of through hole resistors is that they are ideal for operating at high temperatures; they can handle temperatures up to 175°C without significant alterations in their performance. This makes them well suited for use in high power circuits, and electrical and automation systems.

Furthermore, through hole resistors have an inherently longer life span than SMD resistors, due to the superior mechanical strength of the through-hole construction. This greater longevity is also contributed to by the fact that these resistors are less prone to physical shock and extreme temperatures, making them a preference for many industrial applications that have to work in extreme conditions.

Conclusion

In conclusion, the RN55C1434BB14 is a specialized resistor that provides higher temperature air, oil and salt tolerate, with extended temperature range, low noise levels and low thermal instability. It is ideally suited for use in radio frequency modules, power supplies, DC/DC converters and magnetic components. Additionally, through hole resistors offer increased accuracy and reliability in comparison to SMD resistors, as well as being easier to inspect and maintain. They are also ideal for high power circuits, and extreme temperature operations.

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