Varistorreilejä

Varistorreilejä, also known as voltage-dependent resistors or voltage-dependent resistors with nonlinear voltage-current characteristics, are electronic components designed to protect circuits from voltage spikes and surges. They are commonly used in power supplies, motor controls, and other applications where transient voltage surges can occur. Varistorreilejä operate on the principle of nonlinear resistance, where their resistance decreases as the applied voltage increases. This property allows them to conduct excess current during voltage surges, thereby protecting downstream components from damage.

Varistorreilejä are typically made from zinc oxide, silicon carbide, or other semiconductor materials. They are available in various voltage ratings and energy absorption capabilities, making them suitable for different applications. The voltage-current characteristic of a varistor is often represented by a nonlinear curve, with a steep increase in current as the voltage exceeds a certain threshold.

In addition to their protective function, varistorreilejä can also be used as voltage regulators in certain applications. Their nonlinear resistance can be utilized to stabilize voltage levels within a circuit, providing a form of voltage clamping. However, it is important to note that varistorreilejä are not suitable for use as primary voltage regulators, as their nonlinear characteristics can introduce significant distortion into the signal.

Varistorreilejä are widely used in various industries, including automotive, telecommunications, and consumer electronics. Their ability to protect circuits from voltage surges makes them an essential component in many electronic devices. However, proper selection and application of varistorreilejä are crucial to ensure their effectiveness in protecting circuits from damage.