SMP18A-M3/84A

SMP18A-M3/84A TVS - Diodes Application Field and Working Principle

TVS (Transient Voltage Suppressor) diodes are high speed and high performance semiconductor products used mainly for transient overvoltage protection. They provide very high surge current capabilities, reducing the risk of device failures due to lightning or power surges. As an important component in overvoltage protection, TVS diodes are widely used in various electronic devices, such as computers, mobile phones, cameras, display screens, and digital products.

The SMP18A-M3/84A series TVS components are based on reverse breakdown characteristics of silicon semiconductor devices. This series of products are generally packaged in a two-pin SMA (DO-214AA) package, and they feature excellent clamping performance, extremely low leakage current, fast response time, and high surge current capability. This series of product is ideal for overvoltage protection in applications such as I/O interfaces, sensitive computer components, and power adapters.

The SMP18A-M3/84A series works on the principle of Zener breakdown, where an increased current will flow when the voltage across the diode exceeds the breakdown voltage of the junction. When a voltage surge is encountered, the current will rise to a high level, allowing the device to absorb the energy and protect the device.

The common characteristics of the SMP18A-M3/84A series are a maximum clamping voltage of 18V, breakdown voltage of 12V-20V, clamping current (Ipp) of 8A, peak power dissipation (Ppk) of 400W, and peak reverse current (IRM) of 1mΩ. The device can also maintain a high blocking capability for AC and DC currents junction-to-junction. This series of product is rated for operation at a temperature range of -55°C to 175°C.

In summary, the SMP18A-M3/84A series TVS diodes are designed for transient overvoltage protection and suitable for a wide range of applications. They are characterized by excellent clamping performance, low leakage current, fast response time, and high surge current capability. This series of products have excellent protection capability and they can meet the needs of various overvoltage protection requirements.