MMZ2012S400AT000 Filters

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Ferrite Beads and Chips can be used in various electro-magnetic interference (EMI) filters, decoupling, and shielding applications. MMZ2012S400AT000 is one of the most common ferrite bead models used in these applications. In this article, we will discuss the application fields and working principle of MMZ2012S400AT000.

Application Fields for MMZ2012S400AT000

MMZ2012S400AT000 is a low-cost ferrite bead typically used in various general purpose applications. It is widely used in computer motherboards, mobile phones, and other electronic devices because of its small size and low cost. It can also be used for EMI protection, decoupling, and other RF signal filtering applications. Additionally, its small size allows it to be integrated into the design of high-density printed circuit boards (PCBs) and other circuit designs.

In general, MMZ2012S400AT000 can be used in the following application fields:

• EMI protection
• RF signal filtering
• Decoupling
• Shielding
• High-density PCBs

Working Principle of MMZ2012S400AT000

MMZ2012S400AT000 works by suppressing noise on a common-mode line. It is made up of a ferrite core and terminals that are connected to a copper coil winding for electrical connection. The ferrite core absorbs the noise induced in the line by converting some of its energy into heat. As the noise is absorbed, it is suppressed, thus preventing it from passing through to the devices connected to the line.

The ferrite core of the MMZ2012S400AT000 works in two basic ways:

• It deflects the high frequency noise current, allowing it to pass easily around the ferrite bead;
• It attenuates the high-frequency noise current to a low level, thus suppressing the noise.

In addition, the copper coil winding around the ferrite core acts as an inductor, which further helps to reduce the noise on the line.

The MMZ2012S400AT000 is also able to withstand high temperatures, making it suitable for use in high temperature circuits and applications. It is capable of operating at a maximum temperature of 125°C.

Conclusion

MMZ2012S400AT000 is a low-cost, small-size ferrite bead commonly used for EMI protection, RF signal filtering, decoupling, shielding, and high-density PCBs. It works by absorbing or deflecting the high frequency noise current, allowing it to pass it around the ferrite bead, and also attenuating the noise to a low level for suppression. The copper coil winding around the ferrite core acts as an inductor, further helping to reduce the noise on the line.

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