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Through Hole Resistors

The FMP100JT-52-680R is a type of through hole resistor, also commonly known as a "teddy bear" resistor. Through hole resistors have metal wire leads, which are inserted into a hole in a circuit board then soldered in place. They look like small metal teddy bears, hence the nickname.

Through hole resistors are used in a variety of applications involving resistance to electric current flow, such as in circuits controlling motors, lights and switches. In general, they provide a precision level of resistance and therefore are dependably reliable for all high performance applications tasks.

Application Field

The FMP100JT-52-680R through hole resistor is most commonly used in high current applications, due to its high power rating of 100 watts. It is also ideally suited for small signal processing applications, such as low-level analogue signals and other audio related circuits.

It is particularly useful for providing stable performance in precision equipment with low frequency and high accuracy requirements. Its low voltage rating of 50V make it highly reliable in various applications that require highly stable current control, such as power supplies for desktop PCs or laptop computers.

The FMP100JT-52-680R resistor is also often used for RF (radio frequency) applications, due to its very low self-inductance properties. This makes it a superb solution for signal processing applications that require long and stable response times and high reliability. Examples of these applications are base station and mobile radio receivers.

Working Principle

The FMP100JT-52-680R resistor works by creating an effective electrical resistance between two poles, namely, an anode and a cathode. This resistance caused by the special material used in its construction, which is a mixture of nickel and high-purity copper.

When an electric current passes through this resistor, it is forced to divide into two parts. These two parts will experience less resistance than when they were united. This reduced resistance results in a lower potential difference, allowing for an easier flow of current through the load. This results in a lower current level, which can be maintained at a predetermined and stable level by appropriately adjusting the resistor’s value.

In the FMP100JT-52-680R, the resistor is further stabilized by coating the lead frame with a hot-melt coating. This coating helps to maintain a consistent temperature, thus reducing the risk of thermal runaway. This helps to ensure a much higher degree of stability.

In resistors that have a low wattage rating, the resistor is used mainly to divide the voltage, limiting the current flow into a load. In higher wattage resistors, the principle remains the same, but the blocking of current can be used to reduce voltage and/or current in a circuit, depending on the voltage and current requirements.

The FMP100JT-52-680R through hole resistor provides a reliable solution for many applications. In addition, the hot-melt coating helps to ensure stability by providing excellent temperature control.

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