V620ZT05P

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TVS-Varistors, MOVs (Metal Oxide Varistors) are widely used in the protection of sensitive electronic components and systems, from both over-voltage surges and ESD strikes. In particular, the V620ZT05P is a zero-capacitance, transient voltage suppressor (TVS) designed for the protection of sensitive equipment with a lightning protection level of 3. It is a high-speed suppressor suitable for use in automotive applications due to its ability to sustain multiple ESD strikes at a working voltage between 5v and 30v.

The V620ZT05P is a surface-mount device (SMD), designed for quick response time and wide temperature operation range, from -55 to +155°C. It can provide up to a 250-watt peak power dissipation of up to 16-amps depending on the peak pulse duration. Its peak reverse stand-off voltage is 5v and its clamping voltage is 9.3v at 400ma.

The working principle of the V620ZT05P is based on its voltage-clamping construction. Metal-oxide varistors are made up of specially sintered granular elements of semi-conducting metal oxide material with an aluminium oxide coating. They are placed in between two electrodes and are connected in series with a resistance element. When voltage is applied, the electrons migrate into the material. These electrons will then move across the different layers of metal-oxide material and create a low resistance path of conduction.

This creates an electrical ‘clamp’, where the voltage is regulated either side of the median level. The V620ZT05P has a clamping voltage of 9.3v at 400mA, meaning that when the transient voltage exceeds 9.3v the device will clamp the voltage down to this level. This prevents over-voltage occurrences, which can cause damage to the protected circuitry or system.

The V620ZT05P provides ultra-high speed response time, making it suitable for lightning protection and automotive applications. Furthermore its low capacitance and over-voltage protection make it ideal for protecting automotive ECU components. It also has a very robust design, making it highly reliable even under extreme conditions.

The V620ZT05P is a high-performance transient voltage suppressor designed for the protection of automotive ECUs from over-voltage events. It has a wide operating temperature range and a lightning protection level of 3. This makes it ideal for use in automotive applications where fast response times, low capacitance and robust construction are required.

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