RR121-3C63-311 Sensors, Transducers

Series:	RedRock™ 121
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Latch, Bipolar Switch
Technology:	Magnetoresistive
Polarization:	Either
Sensing Range:	1mT Trip, -1mT Release
Test Condition:	25°C
Voltage - Supply:	2.7 V ~ 3.6 V
Current - Supply (Max):	1.7µA
Current - Output (Max):	--
Output Type:	Digital
Features:	--
Operating Temperature:	-40°C ~ 125°C
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3

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Introduction

RR121-3C63-311 is a type of magnetic sensor-switch, also known as a solid-state magnetic switch, that uses the properties of magnetism as a triggering signal. It is usually used in applications where a mechanical switch may be impractical or expensive, such as those that require precise positioning and control, in automotive, medical, and industrial applications.

Working Principle

The RR121-3C63-311 works by detecting the presence of a magnetic field. The sensor consists of a sensor element and a switch element, which in turn are joined to a magnetically sensitive material. The sensing element is triggered or activated when a magnetic field of a certain magnitude is encountered and the switch element is energized in response to the sensed field. The switching mechanism works by detecting the presence of a magnetic field and then using the energy from the field to switch its output. When the field is encountered, the sensing element will emit a signal in the form of an electrical current or voltage that activates the switch. This signal then activates the switch, causing it to open or close depending on the strength of the magnetic field. The RR121-3C63-311 is typically sensitive to fields within a range of 0.2 millitesla to 32 millitesla, depending on the model and application. This range is sufficient to detect most ferrous metals, as well as many non-magnetic materials.

Applications

The RR121-3C63-311 is used in many applications where a mechanical switch may be impractical or expensive. It can be used to detect the presence of a magnet, such as in robotics and automated machines, and can also be used to detect the position of a ferrous object within a machine.In automotive applications, the RR121-3C63-311 is used as a failsafe system to detect the presence of a magnet and then activate a mechanism such as a relay to protect the vehicle in the event of a crash. It is also used to detect the presence of a ferrous metal in airbags and seatbelts in order to activate the airbag in the event of a collision. The RR121-3C63-311 is also used in medical devices, such as MRI machines, where it is used to detect the presence of a magnetic field and then activate a mechanism to protect the patient from the potentially dangerous magnetic fields.In industrial applications, the RR121-3C63-311 is used to detect the position of a ferrous object within a machine and activate a relay to control the operation of the machine. In this way, the switch helps to ensure that the machining process is carried out in precisely the correct manner.

Conclusion

The RR121-3C63-311 is a type of solid-state magnetic switch that is used in a variety of applications where a mechanical switch may be impractical or expensive. It works by detecting the presence of a magnet, or a ferrous object, and then switching its output in response. The switch is sensitive to a range of magnetic fields, so it can be used to detect most ferrous metals and some non-magnetic materials. It is commonly used in automotive, medical, and industrial applications.

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