MJ49R9FE-R52

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Through Hole Resistors are components that have been around since the advent of electricity and are essentially an electrical component that limits the flow of electricity through it using resistance. The MJ49R9FE-R52 through hole resistor is a partially insulated version of this component, originally designed to provide extra protection where extra insulation could be beneficial, such as vibration sensitive areas. This particular through hole resistor is ideal for DC, AC or low noise applications. It is also suitable for high power and medium voltage applications.

MJ49R9FE-R52 Application Field and Working Principle

The MJ49R9FE-R52 through hole resistor has a wide variety of applications and is generally used in roles where more insulation resistance and vibration resistance are required over simple resistors. For example, it is typically used as part of the pulsed power circuits in AC power meters and circuit breakers, or in power switching circuits where it often handles high current surges. It can also be used in automotive applications, as it has a good high temperature performance range.

The principle of a through hole resistor is fairly simple: when a voltage is applied to the end terminals, some electrons will flow through the resistor, thus creating a current. This current will be proportional to the applied voltage, so if the resistor is rated at, for example, 1kΩ, then the 1V applied across it will result in a current of 1A. This current will be dissipated as heat by the resistor, so the power rating of the resistor needs to be designed appropriately to ensure it can withstand the temperature generated by the current.

The thickness of the insulation used on the MJ49R9FE-R52 through hole resistor is usually around 0.2mm, which provides it with an insulation resistance rating of ≥200MΩ. The components also have various temperature-related ratings, such as -40°C to +125°C for the operating and storage temperatures, and the maximum working voltage is rated at 350V.

As previously mentioned, the MJ49R9FE-R52 through hole resistor is designed to be especially resistant to vibrations and shocks, thanks to its partially insulated construction. The insulation is also designed to reduce the electric noise, or electrical interference, caused by the resistor. This is especially important in sensitive low-noise applications.

The MJ49R9FE-R52 through hole resistors come in various sizes, from 0.4 × 0.2 to 2.2 × 1.3mm, with different resistance values and power ratings according to the respective size. The resistors also come with either a silver-alloy or an immobilised resistor element, depending on the application. Furthermore, it is also available with either nickel other coated surfaces or as tin-plated for solderability.

The MJ49R9FE-R52 through hole resistor is a versatile component that can be used in a variety of applications, from AC power meters and circuit breakers, to automotive systems and low noise circuits. Thanks to its partially insulated construction, it is especially resistant to vibration and shocks, making it ideal for more challenging applications.

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