SMCJ8.5A-13-F Circuit Protection

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SMCJ8.5A-13-F: An Overview of its Application Field and Working Principle

The SMCJ8.5A-13-F TVS diode is a high-performance, bidirectional transient voltage suppressor diode designed to protect sensitive electronics and components from voltage transients induced by lightning and other transient voltage sources. Widely used in modern communication and information technology applications, the SMCJ8.5A-13-F TVS diode offers unparalleled protection and reliability. This article provides an overview of the SMCJ8.5A-13-F\'s application field and working principle.

Application Field: The SMCJ8.5A-13-F is suitable for protection of data and signal lines and is designed for applications with stringent requirements for overvoltage protection, such as IEC 61000-4 levels 2 and 3, as well as EN61000-4-5. It is suitable for communication and information technology equipment, such as printers, scanners, photocopiers, and fax machines. It is also ideal for automotive applications, thanks to its gas discharge tube (GDT) elements.

Working Principle: The SMCJ8.5A-13-F utilizes a double layer thyristor or gas discharge tube (GDT) which is triggered by an incoming external surge voltage and produces a high current resistant path between the two parts of the component. This creates a secure capacitive coupling between the two terminal of the component, which eliminates excessive voltage surges on the lines. When the surge voltage drops to safe levels, the thyristor switches off and restores the normal voltage level across the two terminals. This ensures protection from overvoltage and transient voltage surges.

In addition, dust, temperature, and other environmental conditions inside the components can be protected by the SMCJ8.5A-13-F\'s heat-resistant, hermetically-sealed construction. Its temperature range of -40°C to 125°C, along with its ESD immunity, makes it suitable for harsh environments and long lasting operation.

The SMCJ8.5A-13-F is arguably the most advanced and reliable transient voltage suppressor diode available in the market. Its advanced features and superior design make it an ideal choice for all types of electronic components and circuits.

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