SS461A-L

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Magnetic sensors & switches are devices which detect the presence or absence of a magnetic field. The solid-state type of magnetic sensor is among the most popular of these sensors, offering a reliable and cost-effective way to detect and/or sense magnetic fields. The SS461A-L is a solid state latching-type magnetic switch that is specifically designed to be used in applications with external magnets.

Application Field

The SS461A-L magnetic switch is designed to be integrated into a wide range of applications where it can detect the presence or absence of a magnetic field. These applications include industrial automation, security systems, data-logging, medical equipment, and consumer electronics. Most commonly, the SS451A-L is used as a contactless on/off switch for applications such as magnetic lock systems, proximity switches, and level switches.

Working Principle

As a latching-type switch, the SS461A-L features a single-pole, double-throw (SPDT) output (typically connected to an external relay). The SS461A-L operates in two distinct working states: resistor closed and resistor open. When the external magnetic field is applied, the output contacts are in resistor closed state and provide an electrical path between terminals 1 and 2. When the external magnetic field is removed, the output contacts open and disconnect the power supply from terminal 1 and 2, thus entering the resistor open state.

The SS461A-L solid state magnetic switch uses two Hall effect sensors. Each sensor measures the magnetic field within its sensing range and outputs a proportional voltage. The two Hall effect sensors are mounted in opposition and the combined output is amplified and then used to control the internal transistors. This enables the SS461A-L to detect the presence or absence of an external magnetic field.

In summary, the SS461A-L is a latching-type solid state magnetic switch that utilizes two Hall effect sensors and an internal amplifier circuit to detect the presence or absence of an external magnetic field. The SS461A-L is well suited for a variety of applications where contactless switching is required. Depending on the application, the SS461A-L can be used as a proximity switch, level switch, or a magnetic lock system switch.

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