ATV50C171J-HF Circuit Protection

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TVS - Diodes are known to provide a reliable means of protecting device pins from transient over-voltage protection and in some cases, EMI/RFI noise filtering. As such, TVS diodes are popularly applied in automotive, computer, telecommunications and industrial electronics applications.

The ATV50C171J-HF is a TVS diode that provides surge protection and EMI/RFI noise filtering. This device has an operating voltage range of 5.0V to 170V, and can carry a peak pulse current of 10A. It has a maximum recurrent peak reverse voltage (VRRM) of 200V and a surge energy rating of 75J. The device also features an optimum clamping voltage (VCL) of 225V and a response time (tr) of 63ns.

The ATV50C171J-HF provides reliable protection for sensitive electronics from high-speed transient over-voltage and EMI/RFI noise disturbances. It is designed to offer both low resistance and low capacitance, so it is suitable for applications where only minmal insertion loss needs to be tolerated. Its low thermal resistance design ensures that the device can dissipate the heat generated from large energy events to prevent damage to the protected circuit. This diode is available in surface mount and axial packages.

The working principle of the ATV50C171J-HF is based on a principle borrowed from zener diode technology. The device acts like a shunt path ensuring only a short duration pulse current can be transferred from the sensitive circuit during electrical disturbances such as lightning. The device is also designed to have a positive temperature which ensures that the device will breakdown at a set over-voltage level, clamping the voltage in the protected circuit. The device also has a fast response time (tr), typically 63ns, ensuring it can react fast enough to protect circuits from over-voltage transients.

The ATV50C171J-HF is suitable for a wide range of applications including consumer, industrial and automotive electronics. It can be used for various types of transient over-voltage protection such as IEC61000-4-2 (ESD), IEC 61000-4-4 (EFT), IEC 61000-4-5 (lightning protection) and IEC 61000-4-14 (surge). It can also act as an EMI/RFI noise filter for applications such as data interfaces, audio, high-speed signal lines and telecommunication network protection.

In summary, the ATV50C171J-HF is a robust device that provides reliable protection from high-energy surge events, ESD, EFT and lightning as well as EMI/RFI noise filtering. This device is suitable for automotive, consumer and industrial electronics applications and provides low resistance and low capacitance which minimises insertion loss. With a fast response time (tr) of 63ns and a wide operating voltage range of 5.0V to 170V, the ATV50C171J-HF is an ideal choice for a wide variety of applications.

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