MFR50SFTE52-35R7

Through Hole Resistors - MFR50SFTE52-35R7 application field and working principle

Through hole resistors are one of the oldest and most widely used types of resistors used in electronic circuits. A through hole resistor is a resistor mounted through a hole in a printed circuit board or other component from the back of the resistor and is either soldered or connected with a threaded fastener such as a nut and bolt. The most common types of through hole resistors are metal-film, carbon-film, wire-wound and variable resistors. The MFR50SFTE52-35R7 is a metal-film resistor, a type of resistor that is characterized by its low resistance tolerance of ±0.1%, low temperature coefficient of resistance (TCR) of ±25 ppm/K, and high heat dissipation of 105 ℃.

Application Field

The MFR50SFTE52-35R7 is primarily used in high-precision applications such as in circuit boards as voltage-regulating resistors or in measurement and control systems. It is also used in audio applications as level-control transducers or tone control devices. Additionally, it is sometimes used as a protection device against overcurrent in power supplies, a thermistor to protect fuse lines against too-high current/power levels, or for precision ammeters, voltmeters, or signal conditioning circuit boards.

Working Principle

The working principle of the MFR50SFTE52-35R7 is based on the fact that it has a resistive material, usually metal (in this case, nickel alloy) that puts up opposition to the flow of electric current. This resistance value is fixed (in this case, at 52 ohms) and does not depend on the amount of current flowing through it. Resistance limits the current flow in any circuit, meaning that as the resistance in a particular area or circuit increases, the current flow decreases. This is why it is used to control current flow in circuits.

The MFR50SFTE52-35R7 also has a temperature coefficient of resistance (TCR), which indicates the change in resistance as temperature changes. This coefficient is ±25 ppm/K, meaning that as temperatures get higher or lower, the resistance will vary by a certain amount. This is important because the presence of temperature changes in electrical circuits can accidentally alter the functions of electronic circuits, causing failure or incorrect readings.

The MFR50SFTE52-35R7 also has a low resistance tolerance of ±0.1%, which makes it highly accurate in terms of producing consistent readings in different circuits. This is what makes it so desirable as a precision resistor in high-precision applications.

Conclusion

The MFR50SFTE52-35R7 is a through hole resistor that offers a low resistance tolerance of ±0.1% and a low temperature coefficient of resistance (TCR) of ±25 ppm/K. It is primarily used in high-precision applications such as in circuit boards or in measurement and control systems. Its working principle based on the resistive material puts up opposition to the flow of electric current and its temperature coefficient of resistance (TCR) indicates the change in resistance as temperature changes. Its low resistance tolerance makes it highly accurate in terms of producing consistent readings in different circuits.