LCFE121002A900TG Filters

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Common Mode Chokes are components that are widely used in AC-DC power supply units. They are often used to reduce EMI radiation that is generated by high voltage AC power lines and the controllers used to drive the circuits inside the units. The LCFE121002A900TG is a type of Common Mode Choke specifically designed for use in AC-DC power supply units.

This type of Common Mode Choke is an inductor designed for high-frequency applications such as AC-DC power supply circuits. It is designed with two sets of windings, both of which are connected in a symmetrical manner and act as a phase shifter. This type of component has two primary functions. The first is to reduce the EMI impact of the AC-DC power supply, and the second is to provide an alternative current path around sensitive components.

The LCFE121002A900TG is formed by winding two layers of ferrite cores with multiple turns of wire, which can be configured as a single inductor or a pair of inductors. The wire used in winding is typically Litz wire, which helps in limiting losses. The inductance of the LCFE121002A900TG is usually in the range of 1mH to 10mH, although higher values can be achieved with more windings. The rated current is typically in the range of 1A to 5A.

The working principle of the LCFE121002A900TG is simple. When an AC current flows through the common mode choke, the inductive reactance reduces the current that flows through the sensitive electronics, while the core shape reduces the EMI emission from the unit. The combination of the two results in an improved power quality that reduces the risk of damages from interference or electrical noise.

The LCFE121002A900TG has a wide range of applications in AC-DC power supply circuits. It is widely used in power supplies for computers, laptops, mobile phones, and other consumer electronics. It can also be used in motor controllers and switch-mode converters to reduce the EMI noise from these devices. It is also used in industrial control systems to reduce EMI radiation from high-speed, high-voltage AC power lines.

In conclusion, the LCFE121002A900TG is a type of Common Mode Choke specifically designed for use in AC-DC power supply circuits. It is formed by winding two layers of ferrite cores with multiple turns of wire, and the inductance of the LCFE121002A900TG is usually in the range of 1mH to 10mH. The working principle of the LCFE121002A900TG is to reduce the current that flows through the sensitive electronics and to reduce the EMI emission from the unit. It has a wide range of applications in AC-DC power supply circuits, and is also used in motor controllers and switch-mode converters, and in industrial control systems.

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