SMF5.0A RQG Circuit Protection

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This article provides an overview of the SMF5.0A RQG application field and working principle in TVS – Diodes. It is important to consider various aspects before deciding on a diode for an application.

Application fields

The SMF5.0A RQG is a high-performance diode structure designed to protect sensitive electronic components from extreme voltage transients in the transient voltage suppression (TVS) application field. It also has strong robustness due to its very competitive activation time. The RQG modules offer excellent protection from transient voltage events even in extreme environmental conditions such as high temperature, humidity, and dust. It is mainly used in automotive, industrial, mobile handset, and medical applications.

The SMF5.0A RQG can also be used in communication systems, where it is deployed to protect data circuits from excessive noise on the line. For example, in cellphone base stations, SMF5.0A RQG is used to protect critical circuits from excessive ESD disturbances. In automobiles, the diode is also used to protect circuits from RF interference caused by ignition systems, engine computers, or other sources.

Working Principle

The SMF5.0A RQG uses a patented multi-centre charge transfer methodology to provide effective protection against transient voltage events. This methodology works by forming an energy barrier between excessive voltage and the vulnerable device. The charge transfer occurs promptly, allowing for a fast response time and excellent repeat protection.

The SMF5.0A RQG is designed with multiple sensing elements to identify voltage levels. Once an overvoltage event occurs, the diode quickly is activated and shuts off the power to the device. In the absence of an overvoltage event, the diode maintains a ‘quiet’ operating state and is ready to respond to any future overvoltage event.

Additionally, the RQG modules are designed to handle a wide range of current levels, so they are suitable for a variety of applications. The RQG modules are also power efficient, offering a low dropout voltage and low power consumption.

Conclusion

The SMF5.0A RQG diode is a high-performance, reliable, and stable diode structure, ideal for TVS applications. It is suitable for both low voltage and high voltage applications and offers excellent protection against transient voltage events. The SMF5.0A RQG is designed with multiple sensing elements and an efficient charge transfer methodology, allowing for a fast response time and repeat protection. Additionally, the RQG modules are power efficient, offering a low dropout voltage and low power consumption.

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