ATV04A4V0JB-HF Circuit Protection

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TVS (Transient Voltage Suppressor) diodes are electronic components designed for overvoltage protection; they are also known as transient suppressors or spike suppressors. The ATV04A4V0JB-HF is a TVS diode designed to provide reliable overvoltage protection, in the form of a unidirectional diode with reverse voltage blocking capabilities.

Application Field

The ATV04A4V0JB-HF diode is used to protect sensitive electronic components, such as integrated circuits or CPUs, from high voltage spikes. It is designed to protect against transients that can originate from static electricity, ESD (electrostatic discharge), surges, lightning, etc. It has a surge surge current of 4A (8/20 microseconds) a clamping voltage of 4V typical, and a response time of less than 1 nanosecond. This makes it suitable for use in high-speed applications, such as data communications, peripherals, and automotive electronics. Additionally, it can be used in industrial, medical, telecommunications, networking, and aviation systems.

Working Principle

The ATV04A4V0JB-HF TVS diode has a two-pin configuration, with an anode and a cathode. It functions as a unidirectional diode, with blocking capabilities against reverse voltage. When the voltage increases, an avalanche breakdown occurs within the diode, causing a dramatic increase in the current. This sudden increase in current helps to absorb the energy of the transient and clamp the voltage spike to a lower level. The voltage level is known as the breakdown voltage or “clamping voltage”.

The ATV04A4V0JB-HF TVS diode also features “Snubber” technology, which helps to reduce the overshoot voltage spike created by the breakdown voltage. Snubber is a network of components that helps to limit the overshoot voltage spike by dissipating energy through it. This helps to protect the sensitive electronic components from the damages caused by voltage transients.

In summary, the ATV04A4V0JB-HF is a unidirectional TVS diode designed to protect sensitive electronic components from high voltage spikes. It has a surge current rating of 4A (8/20 microseconds), a clamping voltage of 4V typical, and a response time of less than 1 nanosecond. It also has “Snubber” technology to further reduce the overshoot voltage spike resulting from the breakdown voltage. This makes it ideal for use in high-speed applications, as well as in industrial, medical, telecommunications, networking, and aviation systems.

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