NUP2114UPXV5T1G Circuit Protection

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TVS diodes are a special type of semiconductor device designed for bidirectional protection in electrical applications. They are commonly used to protect sensitive circuits from voltage glitches, such as those caused by indirect lightning strikes, electrical surges, and electrostatic discharge (ESD). The NUP2114UPXV5T1G is a particular model of TVS diode that is popular in many applications. This article examines the NUP2114UPXV5T1G\'s application field and working principle.

The NUP2114UPXV5T1G TVS diode is a bidirectional device designed for surface-mount applications. It is capable of handling a peak power dissipation of 14 watts, making it a suitable choice for a wide range of applications such as Ethernet, USB, and DVI ports, as well as other electronic products. It is also widely used in multiple boards, such as motherboard, video cards, and audio cards.

The NUP2114UPXV5T1G features built-in protection against overvoltage andovercurrent conditions. Its rated working voltage is 5V, and it can handle a maximum voltage of up to 10V, withstanding up to 8KV Electrostatic Discharge (ESD). The NUP2114UPXV5T1G also offers a low clamping factor of 1.18V, which helps to reduce the voltage spike generated in response to ESD. In addition, the diode has a low leakage current of just 0.4 μA (typical) at 8V.

The NUP2114UPXV5T1G uses a Zener diode and an avalanche diode which are connected in parallel with each other in order to create bidirectional overvoltage protection. The Zener diode allows current to flow through it in one direction in order to maintain a fixed voltage level while the avalanche diode uses the impact ionization phenomenon to generate carriers in a reverse biased junction, thus providing bidirectional ESD protection. The combination of these two diodes allows the NUP2114UPXV5T1G to protect against overvoltage and ESD conditions, both in the forward and reverse direction.

The working principle of the NUP2114UPXV5T1G TVS diode is simple yet effective. When a voltage spike occurs, the Zener diode distributes the current in the forward direction to lower the voltage. This helps to contain power glitches, and reduces the chances of them damaging the components of the circuit. On the other hand, the avalanche diode acts in the reverse direction. It is configured in such a way that it dissipates the excess voltage from ESD across its junction. It also prevents any reverse current from flowing back into the circuit.

In conclusion, the NUP2114UPXV5T1G TVS diode is a useful device used in many electrical applications. It is capable of providing bidirectional overvoltage protection, as well as containing voltage spikes and electrostatic discharges. The combination of its Zener and avalanche diodes allows it to effectively protect circuits from damage. It is a cost-effective choice for many applications, and is widely used in multiple boards such as motherboard, video cards, and audio cards.

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