HAL320SF-E

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Magnetic sensors and switches provide a robust way to sense and respond to physical objects without the need for physical contact. In the category of magnetic switches, solid state sensors are a special type that offer a low-cost solution for sensing the presence of a magnetic field. The HAL320SF-E is a high-performance solid state sensor manufactured by Littelfuse and is designed to accurately detect and switch on or off in the presence of a magnetic field.

The HAL320SF-E is a bipolar sensor with a ferromagnetic switch that is capable of detecting magnetic fields up to 3 kG without physical contact. It is designed for use in a variety of applications including motion, proximity and door safety detection. It has a wide range of temperature operation, from -20ºC to +85ºC (-4ºF to +185ºF). It also has an adjustable sensitivity level that can be adjusted to accommodate different magnetic fields and conditions.

The HAL320SF-E works on the principle of a Hall effect. This effect occurs when a current carrying conductor is placed in a magnetic field. A voltage is induced in the conductor which can be used to detect the presence of the magnetic field. In the HAL320SF-E, a Hall element coupled with an internal comparator is used to detect a magnetic field and supplies a digital output from the sensor. The output is either a high or low level depending on the presence or absence of the magnetic field.

The HAL320SF-E is suitable for a variety of applications such as alarm systems, door and window sensing, speed or position sensing, and proximity sensing. It is designed to detect the presence of low-field magnetic objects such as ferromagnetic keys, magnets or ferromagnetic strips. The fully sealed package and non-contact design ensures reliable operation even in harsh environments.

In summary, the HAL320SF-E is a high-performance solid state magnetic sensor designed to detect the presence of a magnetic field. It is suitable for a variety of applications, such as motion, proximity and door safety detection. It works on the principle of a Hall effect which is produced when a current carrying conductor is placed in a magnetic field. The HAL320SF-E offers an accurate and reliable solution for sensing magnetic fields in a wide range of temperatures and operating conditions.

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