V351HF34

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Introduction

The V351HF34 is a Transient Voltage Suppression (TVS) diode typically used as an over-voltage protection and a transient suppression device for low power electronics. The V351HF34 is able to help protect sensitive electronic components from damage caused by electrostatic discharge (ESD) events and other over-voltage events.

Design

The V351HF34 is a bidirectional varistor designed to suppress voltage transients caused by electrostatic discharges and other over-voltage events. These transients can cause lengthy downtime or even equipment failure. The device is a bidirectional disc shape which is placed between two conductors and works by limiting and suppressing the voltage during a transient event.

The V351HF34 is composed of zinc oxide varistor elements that can suppress both over-voltage and over-current. It is an ultra-fast device with a very small response time of 6ns. The device can handle transient voltage levels of up to 400V peak, and can conduct up to 25A of over-voltage level current. The device has an operating voltage of 350V ± 5%.

The V351HF34 has a high power density of up to 538mW/mm2, and a highly reliable, uniform response, given its excellent uniformity tolerance of 3%. All of this makes it one of the most reliable and cost effective transient protection solutions available.

Applications

The V351HF34 is suitable for a wide variety of applications and can be increasingly found in more sensitive and low power electronics, such as communication systems, internet of things (IoT), personal medical device, automotive, industrial control systems, consumer electronics, and computers. Additionally, its bidirectional capability makes the V351HF34 an ideal solution for protecting circuits from ESD, electrical fast transients (EFTs), and lightning-induced transients.

In addition, its high power density and response time make it a viable protection solution in busy areas with a lot of ESD, such as cities, airports, or factories. The V351HF34 can also protect against intense solar storm activity, such as Coronal Mass Ejections (CMEs).

Working Principle

The V351HF34 works by limiting and suppressing the voltage during transient events. The device is composed of zinc oxide varistor elements that can suppress both over-voltage and over-current. When a transient event occurs, the V351HF34 will clamp the voltage to the operating voltage and absorb excess current.

This allows the device to protect sensitive components from damage that could be caused by the transient event. Once the transient event is over, the device returns to its normal state, ready to protect against any future transient events.

Conclusion

The V351HF34 is a versatile TVS diode designed to protect low power electronics from damage caused by electrostatic discharges, electrical fast transients, and lightning-induced transients. Its bidirectional capability, high power density, and uniform response time make it an excellent protection solution. It is suitable for a wide variety of applications and can increasingly be found in more sensitive electronics, such as communication systems, IoT, automotive, and consumer electronics.

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