VTVS28GSMF-HM3-18 Circuit Protection

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TVS (Transient Voltage Suppressor, also known as Transorbs) diodes are a type of surge protection device commonly used to protect semiconductor circuits from high voltage transients in a range of applications. The VTVS28GSMF-HM3-18 is a popular TVS diode designed to protect against potential destructive voltage transients brought on through electrical surges. This device is commonly used in industrial, automotive, consumer, and medical applications.

The VTVS28GSMF-HM3-18 is a fast acting unidirectional diode with a maximum peak pulse current Ipp max of 28A and a 2.7V breakdown voltage. It has a compact 3-pin SOD73 package for easy installation in a variety of tight spaces. This device also features an external heatsink with fast-on pins for enhanced thermal performance. It has an impedance of approximately 0.05 Ohms, which is low enough to pass a large current in the short duration of a structured burst of an overvoltage. Furthermore, it has a hold voltage of approximately 5V, ensuring the diode will not trigger until the corresponding voltage is exceeded.

The working principle of a TVS diode is based on the breakdown voltage characteristics of a semiconductor junction. When the voltage across the TVS diode exceeds the breakdown voltage, the diode begins to conduct and allows the surge current to flow. The surge is limited and so the TVS diode acts as a clamping device, providing protection from overvoltage events. This process happens in nano-seconds, allowing the device to respond quickly to incoming transients.

The VTVS28GSMF-HM3-18 can be used for a wide range of applications in industrial, automotive, consumer and medical applications. Most notably, it is commonly used in general-purpose surge protection for DC power, voltage clamping circuits, and overvoltage protection. It is also used in automotive systems to protect against voltage transients caused by wire harness and load disturbance. In consumer appliances, it is often used to protect against damage caused by lightning and power fluctuations. Furthermore, it is used in medical systems to protect against high voltage transients caused by electromagnetic interference.

The VTVS28GSMF-HM3-18 is a versatile and reliable TVS diode designed to provide effective surge protection for a wide range of various applications. With its fast switching speed, low impedance, and robust construction, it is the perfect choice for any application where overvoltage protection is needed. This TVS diode is an ideal solution for protecting sensitive electronic components and ensuring the long-term operation of any system.

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