SDT20120VCT

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The SDT20120VCT is a diode array designed to meet the harsh conditions and demanding requirements of industrial applications by providing effective transient protection and ESD protection for today\'s ever-growing industrial communication systems. The device is an array of Schottky Diodes and integrates two protected signal lines to ensure comprehensive protection against ESD events and transients.

The SDT20120VCT has a total of four protection valves which can be set in two different configurations. When connected in series, the two adjacent protection valves form a two-channel ESD protection network that is permanently in place and capable of protecting against ESD voltages up to IEC 61000-4-2 Level 2. The other two protection valves are connected in parallel to a separate ESD protection network and can be switched between two different protection levels. This allows the SDT20120VCT to provide custom ESD protection for a wide range of industrial communication networks, such as Ethernet, USB, FireWire and RS-232.

The SDT20120VCT also provides an over-voltage protection function which effectively protects against voltage overshoots on both the signal and power lines. This ensures that the devices and circuits connected to the protected communication lines are not damaged by sudden voltage surges. The integrated over-voltage protection diodes have a clamp voltage of 18V and are capable of handling peak transient voltages up to 28V.

The SDT20120VCT is an ideal device for providing ESD protection and over-voltage protection in industrial communication networks. It is easy to install and is available in a wide range of packages, including pressed, SMT, through-hole and socket-mounted types. It is also UL, IEC and CSA approved, making it suitable for use in a variety of applications.

In general, its working principle is that the RC network clamps the input signal at the specified clamp voltage, while the diode array protects the signal lines from overstress caused by ESD events. The diode array consists of two integrated protection valves that can be switched between two different protection levels, allowing you to tailor-fit your protection scheme to the needs of the application. The protection is further enhanced by an over-voltage protection circuit that provides effective protection against sudden voltage surges on both the signal and power lines.

In conclusion, the SDT20120VCT is a versatile diode array solution for providing ESD and over-voltage protection in a wide range of industrial communication networks. It is easy to install and is UL, IEC and CSA approved, making it suitable for use in many different applications. Moreover, it has a total of four protection valves, two of which are switchable between two different protection levels, allowing you to customize your protection scheme to the needs of the application. Thus, the SDT20120VCT is an ideal device for providing reliable protection in industrial communication networks.

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