VC20M00140KBA

TVS - Varistors, MOVs

TVS (Transient Voltage Suppression) devices are used as a protection against overvoltage transients in many electronic circuits. Common examples of TVS devices include varistors and metal oxide varistors (MOVs), both of these devices provide protection from high voltage spikes.

VC20M00140KBA Application Field

The VC20M00140KBA is a medium power varistor that offers comprehensive protection solutions for common, everyday power supply and surge generated transients. With a working voltage of between 25V and 20V, this device is used in electronic circuits to stop the flow of high-voltage transient surges that would otherwise damage the electronics parts due to their sudden and unpredictable increases in voltage. It can also provide protection from electromagnetic interference (EMI) that can be generated by the surrounding environment and nearby electrical equipment. Moreover, it is able to lower the exchange rate during lightning strikes, thus saving the powering electronics from potential destruction.

Working Principle of VC20M00140KBA

These medium power varistors are based on the principle of metal oxide varistor (MOV) technology. A MOV works by diverting the excessive voltage and current away from the main electronic circuit, thus preventing its destruction. When the voltage differential exceeds a pre-determined value, the MOV acts like a resistor, and diverts the voltage. This voltage limiting capability of a MOV is vital to protect sensitive electronics from damage.

Metal oxide varistors are essentially made from sintered discs of zinc oxide along with other metal particles, which are encased in a ceramic material. The resistance of the resistor is high when the voltage differential across it is normal, but the resistance of the MOV device quickly decreases when voltage increases beyond its rated value. It has a wide range of working voltages, and typically triggers at around 20 V, providing above 20V voltage protection.

The VC20M00140KBA is able to clamp the voltage at a safe and desirable level. It also acts as a power and conductive link that suppresses transients and protects signals against transient voltage or signal surges. The VC20M00140KBA is able to limit transient voltage up to 1.4 kV peak, and the device acts as a single-directional protective element.

Conclusion

In conclusion, the VC20M00140KBA is a medium power varistor that is useful for many applications such as power supplies, surge protection, and suppression of transient voltage. The device works by limiting transient voltage, and providing protection from sudden and unpredictable high-voltage increases. It is based on the principle of metal oxide varistor technology, and is able to provide low leakage current, high surge energy absorption, and fast response time. These features make the VC20M00140KBA an ideal choice for many commercial and industrial applications.