CD4FD121JO3F

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Mica and PTFE Capacitors

Mica and PTFE capacitors are both specialty types of capacitors that have unique properties and capabilities. CD4FD121JO3F is one type of mica and PTFE capacitors which have a variety of application fields and working principles. In this article, we will discuss the details of the CD4FD121JO3F and its application field and working principle.

What is CD4FD121JO3F?

CD4FD121JO3F is an AC/DC-over-voltage mica and PTFE capacitor developed and manufactured by Murata in 2020. It is mainly used to protect LED lighting circuits from AC line over-voltage or surge. This capacitor is an environmentally friendly and RoHS compliant product which features an ultra-low ESR (equivalent series resistance) of just 2.1 mΩ. This makes it ideal for the wide range of applications requiring precision and fast response times.

Application Fields and Working Principles of CD4FD121JO3F

As a high-performance mica and PTFE capacitor, CD4FD121JO3F is especially suitable for LED lighting and automotive lighting applications. It has an operating temperature range from –55℃ to +125℃ and can effectively eliminate over-voltage spikes in AC lines. The high surge energy and fast recovery time make it ideal for automotive lighting applications, such as auto start-stop systems and LED speed warning lights.

The working principle of CD4FD121JO3F is based on the capacity of the capacitor itself. When the voltage on the line is higher than the rated voltage, the excess current will be absorbed by the capacitor and dissipated to the surrounding environment. The CD4FD121JO3F can provide over-voltage protection even when the load is inrush or non-symmetrical. When the capacitor works in this mode, the capacitor recovers quickly after absorbing the surge. Its fast recovery time can help maintain the normal operation of any LED lighting or automotive lighting applications.

Advantages of CD4FD121JO3F

CD4FD121JO3F mica and PTFE capacitors also feature low dissipation and wide-band transmission with excellent thermal stability. This means that the capacitor can provide solid protection against voltage surges that occur on AC lines. Also, the CD4FD121JO3F has high surge capability, which makes it suitable for use in demanding automotive applications. In addition, the high reliability and long service life make CD4FD121JO3F a good option for LED lighting and automotive lighting applications.

Overall, the CD4FD121JO3F mica and PTFE capacitor is a great option for various LED lighting and automotive lighting applications. It can effectively eliminate AC line over-voltage and surge, while providing consistent output due to its high reliability and long service life. Moreover, its high surge capability and wide-band transmission make it a great choice for demanding automotive applications.

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