FMF200FRE73-180K

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Through hole resistors are a type of resistor, typically made of carbon or metal that is used to control current in circuits. The resistor is designed to have a specific resistance value, so that the current passing through it is predetermined and predictable. Through hole resistors can be used in a wide range of applications, such as controlling the sensitivity of microphones, adjusting the signal strength of radio receivers, providing feedback in electronic oscillators, etc. This article will discuss the application field and working principle of the widely used through hole resistor, the FMF200FRE73-180K.

FMF200FRE73-180K Application Field

The FMF200FRE73-180K is a wire-wound through hole resistor, designed to be used for the application of controlling the current in a variety of electronic circuits. It has a power rating of 1/4-watt and a maximum operating voltage of 400 V. The FMF200FRE73-180K is a durable resistor, with a temperature coefficient of 570ppm/°C. This means that the resistance of the resistor will change with the change in temperature, and should not exceed 570ppm/°C of the specified resistance value for an ambient temperature of 25°C.

The FMF200FRE73-180K resistors are designed for high stability, accuracy, and reliability. Due to their stable and reliable characteristics, they are widely used in medium- or large-scale engineering projects such as mobile phones, computers, and automation systems. They are routinely used for power resistor application, including power inrush limiting, current sensing, RCD sensing, and ballast resistor. In addition, they are used in applications such as motor control, thyristor control, current overload protection, etc.

Working Principle of FMF200FRE73-180K

Inside the FMF200FRE73-180K resistor, there is a copper wire-wound element connected to the body of the resistor by a pair of metal end caps. The resistance is calculated as the ratio of the length of the wire-wound element to its cross-sectional area. The value of the resistance is determined by the length and width of the copper wire used in the resistor. The FMF200FRE73-180K resistor is designed with a specific resistance value and tolerance value on its body, which are pre-defined according to the application at the laboratory or production plant. So that, when a specific current flows through the resistor, the desired voltage drop can be predetermined.

The FMF200FRE73-180K resistor also has a temperature coefficient value which is used to predict the resistance value under different temperatures, that is stated as a maximum of 570ppm/°C. This means that for an ambient temperature of 25°C, the resistor should not exceed 570ppm/°C. The temperature range rating is -55℃ to +125℃, which means the resistor can withstand high changes in temperature and still perform accurately.

Conclusion

The FMF200FRE73-180K resistor is widely used in various applications and projects due to its stable and reliable characteristics. It is a through hole wire-wound resistor with a power rating of 1/4W, a maximum operating voltage of 400 V, and a temperature coefficient of 570ppm/°C. The resistor is designed to provide a specific resistance value that can be predetermined and used to control the current in an electronic circuit. This resistor is designed with a temperature range of -55℃ to +125℃, ensuring that this resistor can be used to control current in a variety of temperature conditions.

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