ATV15C220J-HF

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TVS - Diodes are electronic components used to protect sensitive electronic circuits from transients such as electrostatic discharge (ESD) and electrical fast transients (EFT). The ATV15C220J-HF is a bidirectional Transil TVS diode designed as a surge protection component for high-frequency signals. It is available in the package of SOT143 and comes with low self-capacitance of 110pF.

Application Field of ATV15C220J-HF

ATV15C220J-HF is one of the most widely used TVS-diodes. It can be found in consumer electronics such as computers, mobile phones, electronic toys and gasoline engine control systems, as well as in many industrial applications. It is especially suitable for high-frequency signals and signals with fast rise time. It can also be used in applications where fast response time and flat parallelism line shape is required, such as in smart home systems, overvoltage and overshoot protection, DC/DC converters, automotive systems, telecommunication systems, and modern trains. Furthermore, it can be used for protection of clusters, radio equipment, general purpose transceivers, automotive systems, etc.

Working Principle of ATV15C220J-HF

The ATV15C220J-HF is a bidirectional TVS diode. This means it can provide protection from both positive and negative transients. It is composed of two dissimilar semiconductor junctions. The first is a PN diode, which is forward biased and related to protection from positive transient pulses, and the second is a PIN diode, which is reverse biased and related to protection from negative transient pulses. The transistors within this diode are designed with a low series resistance and combined with the PN and PIN design, it guarantees an outstanding protect of the circuit.

When exposed to a transient voltage spike, the transistors reduce current flow by rapidly clamping the voltage to a predetermined level and thus protecting the circuit from damage. The diode’s response time is very short and is determined by the rate of change of the current through the device. This ensures a fast response and helps to protect the in-circuit components from damage.

The ATV15C220J-HF provides a higher clamping voltage and wider operational voltage range than its predecessors. It ensures a reliable protection from overvoltage transients, including ESD, EFT and surge currents. The low self-capacitance of 110pF also helps to reduce any crosstalk to other ICs in the circuit, improving their safety and reliability.

Conclusion

The ATV15C220J-HF is an ideal solution for ESD, EFT and surge protection of high-frequency signals. Its short response time, wide operational voltage range and low self-capacitance enable it to provide reliable protection from overvoltage transients, and thus help to protect circuits from damage. It is especially suitable for many consumer and industrial applications, including smart home systems, general purpose transceivers, radio equipment, automotive systems, etc.

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