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Through Hole Resistors - HHV1WSJT-73-3M3

Through hole resistors (also known as through-hole devices, THD, or leaded resistors) are resistors that are mounted on printed circuit boards (PCB)s of vertical and horizontal type. Unlike SMD resistors which are surface mounted devices and are designed to fit on a single side of the board, through hole resistors are attached to both sides of the board making them bulkier than SMD resistors. Despite their bulkier size, through hole resistors are still popular because they are relatively easier to work with and are highly reliable.

Application Field and Working Principle

THD resistors are used in a large range of applications including automotive, instrumentation, audio, computing, telecommunication and military. Due to their large size, they are essential for applications that require significant power. They are even being used in modern devices such as laptops, tablets and phones. They are usually placed in the same hole during the fabrication process, and the contacts on the opposite side of the board are then soldered with a wave-soldering technique.

The main purpose of using through hole technologies is to preserve signal integrity while providing power isolation. The isolating effect of the through hole technology reduces noise interference between the components and therefore enhances the performance of the product. This also improves the signal to noise ratio, ensuring better performance in complex and difficult signal processing scenarios. Through hole resistors work by creating an electrical path or resistance at a certain voltage. They are usually composed of a heavy-duty ceramic core and a thin layer of metallic material arranged in columns and rows. This arrangement ensures that the resistance increases with increase in voltage, leading to better signal integrity, stability, and more efficient usage of power.

Through hole resistors also provide enhanced durability to support applications with a faster rate of change and to withstand high temperatures. Generally, the resistance components, which are generally made of an oxide-based ceramic material, are designed with rugged construction so as to provide protection and withstand harsh conditions. This ensures that the product will operate reliably for a longer period of time.

When using through hole resistors, it is important to consider certain factors such as size and power rating to ensure proper use. Size is an essential factor in determining the performance of through hole resistors. The wrong size may lead to degradation in performance. Furthermore, power rating is also important because it determines the amount of power that the resistor can handle without failure. It is important to select a resistor that can handle the necessary amount of power for the specific application.

The HHV1WSJT-73-3M3 is a popular through hole resistor manufactured by Hitano. It is a 2 watt, 10-27ohms, single-turn, non-inductive variable resistor designed to provide excellent performance and reliability for a wide range of applications. The high temperature stability and high reliability of this resistor make it suitable for use in high-temperature and other demanding environments such as medical, defense, and aerospace applications. It features low performance degradation and minimal fluctuations over temperature and time. The resistor is also RoHS compliant and can be used in a variety of temperatures ranging from -55°C to +160°C.

In conclusion, through hole resistors are bulky but reliable components essential for a variety of applications such as automotive, instrumentation, audio, computing, telecommunication and military. The HHV1WSJT-73-3M3 is an example of a through hole resistor renowned for its high temperature stability and reliability. It features low performance degradation and can handle temperatures ranging from -55°C to +160°C.

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