SI7201-B-04-IVR

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Magnetic Sensors - Switches (Solid State)

The SI7201-B-04-IVR is a type of magnetic switch categorized under Solid State Magnetic Switches. It is used in an array of different applications due to its versatility, accuracy and precision. This article will further detail the application fields and working principles of the SI7201-B-04.-IVR.

Applications

The SI7201-B-04-IVR is designed for use in a wide variety of applications due to its accuracy and low-maintenance features. Its most common applications include:

• Access Controls Systems
• Automotive Systems
• Industrial Controls
• Building Automation
• Retail Inventory & Asset Tracking
• Security Systems
• Test & Measurement Equipment

The SI7201-B-04-IVR is also suitable for use in corrosive and hazardous environments due to its rugged construction and high immunity against electrical noise.

Design

The SI7201-B-04-IVR is housed in a compact BG-11 enclosure with an operating temperature range of -20°C ~ +85°C. It utilizes a Hall effect element to sense the presence of an external permanent magnet. The switch is equipped with an injection molded protective cover to extend the service life of the switch’s internal element. It uses a PNP-type semiconductor output to indicate the open or closed state of the switch. The SI7201-B-04-IVR is available in a variety of mounting styles, including snap-in, rail-mount and self-adhesive.

Working Principle

The SI7201-B-04-IVR utilizes a Hall effect sensor to detect the presence of a permanent magnet. When the magnetic field is external to the switch, the Hall element produces a voltage, which is utilized to activate the device. When the magnet is moved away from the switch, the Hall element does not produce a voltage, thus deactivating the switch. The amount of voltage produced by the Hall element is proportional to the strength of the magnetic field, allowing the SI7201-B-04-IVR to accurately detect the presence of a magnet and output a corresponding signal.

Conclusion

The SI7201-B-04-IVR is a versatile solid state magnetic switch designed for use in a wide variety of applications. It utilizes a Hall effect element to sense the presence of an external permanent magnet and produces a corresponding output signal. Its small size, ruggedness and immunity to electrical noise make it suitable for use in harsh environments.

The SI7201-B-04-IVR is an ideal choice for access control, automotive, industrial, building automation, asset tracking, security and test & measurement applications.

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