V300LA40CPX10

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Varistors, metal oxide varistors (MOVs) and transient voltage suppressors (TVSs) are electrical components used for voltage protection. Recently, TVSs have become increasingly common in many low-voltage applications, such as microprocessors, power supplies, and automobiles. The V300LA40CPX10 is a TVS that is designed to protect circuits from transients and spikes in voltage. In this article, we will discuss the application field and working principle of the V300LA40CPX10.

Application field

The V300LA40CPX10 is a surface-mount varistor with an operating voltage range of +2V to +60V. It is ideal for use in power supplies, power grids, switching circuits, and other applications where high surge current is expected. This TVS is designed for suppressing surge current up to +60V. Its clamping voltage is 35V. It also has an excellent surge absorption capability up to 5V/μs with a peak current of 300A and a nominal capacitance of 1.6pF.

The V300LA40CPX10 is UL and CSA approved, and is compatible with lead-free soldering processes. It also has a wide operating temperature range from -40°C to 125°C. This makes it compatible with both military and commercial applications. Additionally, this varistor has a high surge energy absorption capability up to 500 Joules.

Working Principle

The V300LA40CPX10 is designed to protect electronic circuits and components from transients and spikes in voltage. The varistor works by clamping the voltage at a certain level. This prevents excessive current from flowing through the circuit. The varistor has two metal electrodes – one connected to the power line and one connected to the ground. The metal electrodes are insulated by a layer of zinc oxide material.

When the voltage of the power line exceeds the predefined voltage on the varistor, the zinc oxide material is compressed and an electric current starts flowing through the electrodes. This current clamps the excessive voltage to a predefined level. This prevents damage to the circuit components and ensures the safe operation of the circuit.

The V300LA40CPX10 is a reliable and efficient way of protecting sensitive electronic circuits from transients and spikes in voltage. Its wide operating voltage range from +2V to +60V makes it suitable for use in a range of applications. The high surge energy absorption capability of this varistor ensures that circuits are safe from intense current surges.

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