MOV-20D431K

TVS (Transient Voltage Suppressors) are a type of varistor designed to protect circuits from high-voltage transients. There are various types of TVS from bidirectional to unidirectional and from low impedance to high impedance. The MOV (Metal Oxide Varistor) is an example of a bidirectional, low impedance TVS. The MOV-20D431K is a type of MOV designed for industrial applications. This article will discuss the application field and working principle of MOV-20D431K.

MOV-20D431K Application Field

The MOV-20D431K is designed for industrial applications. It is typically used in high-current, high-voltage applications, which require a robust transient voltage suppression solution. It is most commonly used in AC/DC power supplies, DC/DC converters, line power protection, telecom and datacom equipment, as well as industrial control and automation systems.

The MOV-20D431K is also form-factor friendly. It is available in a wide range of packages, allowing engineers to easily choose the correct package for a specific application. The most commonly used packages are the DO-213AC and SOD-123FL, which are very small in size and highly reliable. The small size allows for easier mounting and board insertion, which saves time and cost during the design and prototyping phases.

MOV-20D431K Working Principle

The MOV-20D431K is a type of MOV designed to protect circuits from high-voltage transients. It is a Bidirectional Varistor (BV) which combines two Varistor plates inside a single gas-filled package. When a high-voltage transient is applied, the Varistor plates generate an opposing voltage, which adjusts the voltage across the MOV to a safe level. This protects the circuit from being damaged by the high transient voltage.

The MOV-20D431K also has an effective clamping voltage level of 28V and a maximum clamping voltage of 32V. This ensures the circuit is not exposed to damaging high-voltage levels and the overall system is protected from excessive current. The Varistor plates also use a nonlinear resistor material, which provides excellent noise immunity and protection against electromagnetic interference (EMI) and radio frequency interference (RFI).

Conclusion

The MOV-20D431K is an example of a bidirectional, low-impedance TVS designed for industrial applications. It has an effective clamping voltage level of 28V and a maximum clamping voltage of 32V, which provides excellent protection against high-voltage transients. The MOV-20D431K is also form-factor friendly and is available in a wide range of packages. This makes it a great choice for use in high-current, high-voltage applications, such as AC/DC power supplies, DC/DC converters, line power protection, telecom and datacom equipment, as well as industrial control and automation systems.