VDRS20M025BSE

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Varistors, also called voltage-dependent resistors (VDRs), are semiconductors that are designed to provide protection against large voltage transients. They are commonly used in electronic devices such as computer motherboards, power supplies, and automotive electronics. The VDRS20M025BSE is a surface-mount VDR that can be used for several applications. This article will discuss the application field and working principle of the VDRS20M025BSE.

The VDRS20M025BSE is a 20mm diameter surface-mount VDR with a breakdown voltage of 25 volts. It has a maximum peak pulse current rating of 73 amps with a 10/1000µs pulse width. This makes it suitable for use in applications that require protection against high-voltage transient pulses such as in automotive electronics.

The working principle of VDRs is based on the varying resistance of semiconductor materials depending on the applied voltage. When there is no voltage applied, the resistor has a very high resistance due to the insulating nature of the semiconductor material. When a voltage is applied, the resistance of the material decreases and a current begins to flow. VDRs are able to protect against large voltage transients by reacting quickly to changes in voltage. When the voltage exceeds the breakdown voltage of the VDR, the current increases dramatically, instantly providing protection against large transients.

Due to its ability to protect against high-voltage transients, the VDRS20M025BSE is suitable for use in automotive electronics. For example, it can be used to protect automotive ECUs from damage caused by high-voltage spikes. It can also be used in power supplies to protect sensitive capacitors and other components from transient overvoltages. Additionally, the VDRS20M025BSE can be used in computer motherboards and other computing systems to safeguard components and data.

The VDRS20M025BSE is a highly reliable and affordable voltage-dependent resistor that is suitable for a wide range of applications. Its high peak pulse current rating and breakdown voltage make it suitable for use in automotive electronics, power supplies, and computing systems. By using the VDRS20M025BSE, electronic devices can be protected from large voltage transients and potentially expensive repair costs.

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