HS75 1R5 F

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Chassis mount resistors are components used to maintain a specific electrical resistance within a device. Although their construction and composition vary between manufacturers, they are typically composed of a metal or ceramic base, topped by a ceramic cover, and filled with carbon or metal oxide resistive material. The HS75 1R5 F is a noteworthy member of this class, being a solid-state resistor with a low-power, high-value body. It was specifically designed for use in isolated applications – those that require a high level of noise or impedance isolation – and it is highly versatile, suitable for use in a wide range of electronics applications.

The primary applications of the HS75 1R5 F are for touchscreen controller applications and other applications in which low power dissipation and a high level of stability are important. Compared with other chassis mount resistors, it provides a substantially higher power rating – 0.05 watts – combined with a high level of dielectric strength – 250 volts. This makes it ideal for use with sensitive electronics equipment, such as touchscreens.

The component design of the HS75 1R5 F is based on a single layer of solid-state film, which is sandwiched between two ceramic layers. This combination provides a high level of electrical insulation, helping to ensure a reliable performance even in areas of high EMI. The design also includes a broad array of temperature coefficients – from +1000ppm/K at 25C to +3000ppm/K at 125C – to ensure the resistor maintains a consistent resistance across temperature fluctuations.

The working principle of the HS75 1R5 F is based on the introduction of an electrical current in the form of a direct current, or DC. As the current flows through the chassis mounted resistor, its electrical resistance causes the current to be converted into heat. This heat is then dissipated in the surrounding air or in a heatsink, and the resistor will reduce its electrical resistance as the heat dissipates. This process ensures that the resistor can regulate the electrical current within a device, ensuring a consistent and reliable performance at all times.

The HS75 1R5F is a versatile and dependable option for an array of applications, from touchscreen controllers to audio amplifiers. By combining a high power rating, a reliable dielectric strength, and a broad range of temperature coefficients, it has been designed to provide a consistent and reliable performance in a wide range of settings. This makes it a great choice for any application in which high levels of stability and low levels of noise and impedance isolation are required.

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