DR331-474AE Filters

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Common Mode Chokes refer to a type of EMI filter used to reduce the amount of conducted emissions. DR331-474AE is a type of common mode choke designed to provide excellent filtering by induction. It supports a range of voltage levels from 2.65V to 30V, and comes in various package sizes depending on the application.

The principle of DR331-474AE is based on the concept of inductance. The choke consists of three inductive windings, one primary and two secondary coils, that are wound onto a ferrite core. The primary coil is connected to the power source, while the secondaries are connected to the Electronic Equipment (EE) and the Chassis GND. As the current passes through the primary, it generates an opposing magnetic field in the secondaries that prevents the high frequency current from flowing freely.

DR331-474AE offers multiple benefits in terms of EMI reduction. The high-frequency noise generated by the power source is attenuated, and ESD current is dissipated through the filter instead of the EE, thereby protecting it from damage. In addition, the choke also suppresses common mode noise and provides power line noise suppression. The filter is designed for use in applications such as power supplies, motors, AC power, and high voltage DC applications.

In terms of applications, DR331-474AE can be used in various areas. For instance, it can be used in motor control systems to suppress common-mode noise that may cause erratic control signals. It can also be used in ac power supplies to reduce high frequency noise. Furthermore, it can be used in high voltage DC applications such as solar and wind power generation to reduce EMI from power lines. Finally, the filter can be used in wireless systems and telecommunication systems as a noise suppressor.

In summary, DR331-474AE is a type of common mode choke designed to offer excellent filtering by induction. It provides a variety of benefits in terms of EMI reduction, as well as power line noise suppression. The filter is suitable for use in numerous applications including power supplies, motor control systems, ac power supplies, high voltage DC power sources, and wireless systems.

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