SS443R

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Magnetic sensors can be used in a wide range of applications. Magnetic switches, or solid state devices, incorporate an electrically-controlled magnetic field to detect and respond to changes in magnetic fields. One such product is the SS443R, a type of 3-axis Hall effect magnetic switch, which is designed for industrial and automotive use. The SS443R has a built-in magnetic circuit which can detect flux densities of up to 0.2 Tesla in the three perpendicular axes.

The SS443R is available in a range of package sizes, from 20x8mm to 8x8mm for use in limited spaces. It can be used in environments with operating temperatures up to +125°C, and industrial grade models are available for high temperature applications up to +200°C. It has several internal and external features which protect it from the effects of EMC and EMI, as well as lightning strikes.

Working Principle

The SS443R operates on the principle of the Hall effect, which states that a voltage is developed in a conducting material when a magnetic field is applied across it. The device incorporates an integrated HCSR04 transducer which senses flux changes in the three perpendicular axes, and outputs a corresponding voltage signal which can be detected and measured.

When a magnetic field is applied to the three axes, a voltage signal is created in each axis. These signals are then measured by a Hall effect sensor and converted into output voltage. The output voltage corresponds to the magnitude of the magnetic field, which can then be used to actuate a response, such as an electrical contact closure.

The SS443R features an adjustable detection threshold, which can be adjusted based on the strength of the magnetic field being detected. This allows the device to be calibrated for different applications, enabling it to accurately detect varying magnetic fields.

The SS443R also features an advanced sleep mode, which allows the device to enter a low-power state when no current is flowing through it. This helps to save battery life, as well as reduce power consumption and the associated costs.

Applications

The SS443R is designed for use in industrial and automotive applications. It is suitable for monitoring and detecting changes in magnetic fields, such as the presence of doors and windows, as well as the movement of vehicles.

The device is also suitable for use in a range of industrial applications, such as pump monitoring and fluid-level detection. Additionally, it can be used to detect the presence of metal or ferrous materials for inventory and process control applications. The device is also suitable for use in anti-theft applications, such as vehicle security systems, as it can detect changes in magnetic fields in the three perpendicular axes.

The SS443R offers a high level of reliability, with EMC and EMI protection, a robust construction, and a wide temperature range for use in industrial and automotive applications. It is a cost-effective solution for applications where changes in magnetic fields need to be detected accurately.

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