EH28-5.0-02-1M1 Filters

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Common Mode Chokes, also known as common mode filters, are devices used to reduce the level of electromagnetic interference (EMI) caused by the current through the power line in power electronic equipment. The Common Mode Choke is a vital component of any electronic product and has the great ability to solve the poor noise suppression effect of many electronic products. It is widely used in switching power supplies, motor drives, solar controllers, various high-frequency circuits and other fields. The EH28-5.0-02-1M1 Common Mode Chokes is a type of filter which is used to filter the high-frequency common-mode current from power signals, to ensure the safety of the system stability.

The EH28-5.0-02-1M1 Common Mode Choke is typically used in power applications such as communications, power supplies, renewable energy, automotive, signal processing, etc. when a high EMI rejection ratio (EMIRR) is required. This type of common mode filter has an insulation voltage of 500V, a minimum rated current of 1mA and an operating temperature range of -40°C to +105°C. In order to enhance EMI rejection, a flat common mode impedance curve is realized by increasing the number of windings, which in turn reduces the common mode frequency response. Additionally, ferrite toroid-shaped cores are integrated into the construction of the choke for additional EMI protection.

The working principle of the EH28-5.0-02-1M1 Common Mode Choke is based on the principle of magnetic flux movement. A conductor contains current in the form of alternating current (AC) and spins around the magnetic field, which causes a phenomenon known as the inductive effect. The magnetic field of the EH28-5.0-02-1M1 Common Mode Choke utilizes the inductive effect to restrict the flow of AC currents. The filter has the ability to block the interference, effectively shielding the system from unexpected currents and allowing the system to work in a stable environment.

The EH28-5.0-02-1M1 Common Mode Choke is specially designed for power applications. It reduces the amounts of high frequency common mode noise and prevents the equipment from over-stressed or malfunction due to the interference. The use of this type of filter in power supplies can provide a low electromagnetic interference (EMI) level and also reduce interference with other systems. As the filter can provide a high level of noise blocking, the system is able to achieve a stable and reliable environment for the specific application. Moreover, it can also protect the equipment from unexpected currents which can cause unexpected system failures.

In conclusion, Common Mode Chokes, including the EH28-5.0-02-1M1 type, are invaluable tools for achieving a stable environment in power electronic equipment. The choke utilizes inductive effect to restrict the flow of AC currents and provide a flat common mode impedance curve, ensures the safety and reliability of the system in operation. Furthermore, the use of common mode filter helps to reduce the EMI level and protect the equipment from unexpected currents.

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