AS1751V-T

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The AS1751V-T is part of a family of interface devices known as analog switches, multiplexers, and demultiplexers. This particular device is an In-Line Small Form-factor Connector (SFP) interface plastic sealed relay. Due to its compact size, the AS1751V-T is suitable for applications in tight spaces and places where board area is limited, such as telecom infrastructure, test and measurement, medical, and industrial instrumentation. These applications range from signal switching/routing between two connectors, low signal multiplexing, signal fan out, and other applications.

The AS1751V-T is an SPST Reed relay with an isolated relay contact design. It has a rated operating voltage of 28V, a maximum current carrying capacity of 1A, and an isolation resistance (between the output and input signals) of 1000MΩ. The contact surface of the AS1751V-T is made from a high temperature plastic polymer that prevents the contact from oxidation and enhances the reliability of use for a long time. By adding this features, it provides superior performance in terms of durability, contact reliability, and sensitivity.

The AS1751V-T’s working principle is simple. Its internal coil is energized when current is passed through it. The influx of current creates a magnetic field, which causes a plunger to move, revealing two sets of contact points. When the contact points are engaged, they complete a circuit, resulting in the connection of two previously unconnected circuits. Once the switch opens, the contact points are separated and the circuit is broken.

The AS1751V-T is not affected by temperature changes, as it has a wide range of operational temperature storage-35℃~+ 85℃. The low actuation voltage minimizes power consumption, and its low conduction resistance of 15mΩ,can optimally use the power drop where the temperature rises. In addition, this device operates in a low-noise environment and has high impedance, making it ideal for sensitive applications.

The AS1751V-T features a compact, lightweight design with an operating life of 200,000 cycles. It has an integrated bypass contact, which facilitates quick circuit changes in case of premature contact failure. Furthermore, the device is lead-free, making it compliant with the RoHS (Restriction of Hazardous Substances) directive.

The AS1751V-T is an ideal choice for applications where low power consumption, size constraints, and signal integrity are key requirements. Its contact reliability, superior noise immunity, superior temperature performance and its small form factor make it an attractive option for the following applications:

• High-speed signal switching
• Automation control
• IVHS (Intelligent Vehicle Highway Systems)
• Consumer electronics
• Medical instrumentation
• Industrial instrumentation
• Telecommunications
• Measurement/test equipment

In conclusion, the AS1751V-T is an effective and reliable interface solution suitable for a wide range of applications. It is cost-effective, easy to install, and offers superior durability and contact-reliability.

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