ATV50C220J-HF Circuit Protection

TVS - Diodes are used for a variety of power protection applications. Their main purpose is to protect sensitive electronic components from transient voltage surges and other types of overvoltage, while also providing noise immunity for systems with multiple power and ground planes. The ATV50C220J-HF is one of the TVS Diodes used for such applications.

The ATV50C220J-HF is an unidirectional avalanche diode manufactured with glass-passivated chip junction technology. This TVS diode is designed to protect against Electrostatic Discharge (ESD) and Lightning strike surges and provide voltage clamping and current limiting. The ATV50C220J-HF is rated for a peak power dissipation of 600W (10/1000 μs) and a non-repetitive reverse surge of up to 40A (8/20 μs). It is designed to withstand a continuous reverse voltage of 2V.

The ATV50C220J-HF has many applications including surge protection for general-purpose equipment, telecommunications and networking systems, baseband/video lines, and medical equipment. They are suitable for air, rail, and automotive applications due to their low leakage current. The device is designed to withstand a maximum operating temperature of 150°C. It comes in a ±5% voltage tolerance and meets the requirements for UL 1449 4th Edition.

When used in an application, the TVS diode is placed in series with the sensitive component. It works by absorbing and dissipating transient energy caused by lightning, power cross, and other overvoltage events. When the voltage across the diode exceeds a preset value, the avalanche breakdown of the diode occurs and gas filled cavities or carrier channels form inside the junction region. This creates a path for current to pass through and limits the voltage at the load to a smaller, more manageable value. The Zener voltage of the diode, the value at which avalanche breakdown occurs, is determined by the characteristics of the diode.

The ATV50C220J-HF is a low voltage, low capacitance diode designed for a wide range of ESD, electrical transients, and surges. It is ideal for a variety of power protection applications such as telecommunications, computer systems, consumer industrial and networking devices. This diode is designed to provide superior protection for sensitive circuits when overvoltage transients occur.