ATV30C251JB-HF Circuit Protection

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The ATV30C251JB-HF is a TVS (transient voltage suppression) diode designed to protect electronic circuits against excessive electrical transients or surges above specified threshold limits. It provides a highly effective means of protecting sensitive semiconductor components from ESD (electrostatic discharge) and other electrical transients in a variety of different application fields.

ATV30C251JB-HF is available in four different versions, including basic, withstanding voltage surge, fast response time and reverse voltage protection. This diode has an ESD protection capability of over 30kV with an operating frequency of up to 5GHz, and a reverse peak working voltage of 279V. The peak storage current of 250A allows it to absorb higher surge currents before failure. Its total number of pins is just two, which makes it a compact device that can easily be integrated into an existing circuit.

In terms of application field, ATV30C251JB-HF is suitable for a wide range of applications, from consumer electronics and lighting systems to industrial control and automotive electronics. It can be used to protect microcontrollers, data lines and power supplies from potentially damaging ESD or surge events. Additionally, it provides advanced overvoltage protection in data and communications equipment.

The working principle of ATV30C251JB-HF involves the two pins connecting the diode in parallel to the power rail or signal line being protected. When the voltage across the diode exceeds the specified threshold, or the current exceeds a defined limit, the diode conducts current from the power rail or signal line to ground. This process limits the maximum voltage that can be seen by the system, reducing the possibility of damage. Additionally, it provides ESD protection by dissipating the energy of a pulse event before it reaches vulnerable electronic components.

ATV30C251JB-HF is an ideal choice for unipolar discrete components such as microcontrollers and data lines, for applications where protection from electrical transients or surges is needed. Its flexibility and robustness makes it ideal for a wide range of applications requiring surge and ESD protection. It is rated to work up to 5GHz, and it has a very fast response time (25ns) making it suitable for even most stringent protection requirements.

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