MFR25SFRF52-237R

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The MFR25SFRF52-237R resistor is a through hole resistor, meaning that it is constructed in a manner that allows it to be mounted onto a board and electrically connected, usually with a tab or a pair of eye-let crimps. Technically speaking, it is an axial leaded resistor, and its construction and shape allow for easy installation, efficient heat dissipation, and dependable operation.

The designation of the MFR25SFRF52-237R Resistor tells a lot about its characteristics. MFR stands for “Metal Film Resistor.” This means that the element inside is made of a thin metal film that is either deposited onto the resistor structure itself or etched from a sheet metal resistor. Metal film resistors have a few advantages over other type of resistors, such as carbon composition resistors, which are also common in through hole applications. The metal film element is less prone to changes in temperature and humidity and can handle higher frequencies better.

The numbers 25 and 52 indicate the size of the resistor and it’s tolerance, respectively. 25 stand for 2512, MFR25SFRF52-237R resistor is 12.6mm long and 5mm wide. The number 52 means it has a 5% tolerance, meaning the actual resistance value may have a 5% variance from the catalog value. The 237R indicates the actual resistance value, 237 ohms.

The MFR25SFRF52-237R is typically used for applications where space and power rating are an issue. Being a through hole resistor, it can be used in numerous through hole boards like circuit boards, wired circuit, or electronic components. Due to its multiple uses, it is popular in the electronic component industry.

The working principle of this resistor is pretty straight forward. It works by reducing the current flowing in a circuit. When a resistor is placed in a circuit, some of the energy of the current is lost as heat due to the resistance of the resistor. If the resistance is too low, the current will be too high. Increasing the resistance reduces the current.

The MFR25SFRF52-237R is a reliable resistor with some distinct advantages. Its size is small enough to fit into tight spaces, and its 5% tolerance ensures accuracy. Its metal film element is less affected by environmental changes, and its design allows for heat dissipation. Its common usage in through hole boards and chip components make it one of the most widely used resistors in the industry.

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