OHS3020U

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The OHS3020U is a solid state magnetic switch designed to detect current flowing in electrical circuits. It is part of a family of OHS Magnetic Sensors that are designed for reliable detection of magnetic fields and currents. These switches provide contactless detection of electrical contacts, primarily for security and monitoring applications such as intrusion detection, smoke and fire alarms, and access control systems.

The OHS3020U is a Hall Effect switch that utilizes a magnetic hall sensor to detect the presence or absence of a magnetic field in the vicinity of its sensing range. A Hall Effect switch is a non-contact device that makes it ideal for use in hazardous work environments. When a magnetic field within its sensing range is detected, a switching output is generated.

The OHS3020U is designed with a dedicated low-level digital output, which allows for reliable operation with low power consumption. The switch comes with an integrated low-voltage regulator, allowing operation from 2.3 to 5.5 V. It has an insulation voltage rating of 130V, which protects the device from voltage spikes, and its switching frequency range of 1 Hz to 600 Hz makes it suitable for a wide range of applications.

The OHS3020U has an extremely high sensitivity, which allows it to detect small changes in the magnetic field. Its pull-up resistor circuit can easily convert a low voltage signal to a high voltage signal, making it ideal for signal processing and analog applications. The switch’s hysteresis prevents any false triggering, ensuring accurate operation.

The OHS3020U is also designed with advanced protection features, such as over-voltage protection and short-circuit protection, which prevents any damage during operations. Additionally, it has a wide operating temperature range of -25⁰C to +85⁰C, making it suitable for use in a wide range of applications.

The OHS3020U is a rugged and reliable magnetic switch that can be used for a variety of applications, including intruder detection, smoke and fire alarms, access control systems, and industrial automation. Its robust design and reliable detection capabilities make it an ideal solution for applications in harsh environments.

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