CM1812R600R-10 Filters

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Common mode chokes are an important component of many electronic systems, which are designed to limit the amount of alternating current (AC) flowing through a circuit and prevent electromagnetic interference. The CM1812R600R-10 is a common mode choke designed for EMI/RFI suppression applications.

Application Field

The CM1812R600R-10 common mode choke is designed for use in a variety of applications, including:

• High frequency switching power supplies
• High voltage DC-DC converters
• DC-AC inverters
• AC-DC converters
• Power amplifiers
• Voltage regulators
• Audio systems
• Video systems

The CM1812R600R-10 is designed for industrial and consumer applications and is UL (Underwriter Laboratories), RoHS (Restriction of Hazardous Substances), and Reach approved. It has a maximum inductance of 600 mH, an impedance of 100-2000 ohms, and a rated current of 0.2 A.

Working Principle

The CM1812R600R-10 common mode choke works by providing a high impedance path to suppress common mode noise in an AC circuit. The choke is connected in series with the power line, which passes through the coil of the choke. The coil acts as an inductor, creating a magnetic field in opposition to the alternating current. This magnetic field acts as a resistor, causing the current to be reduced and the voltage dropped. The current flowing through the choke is equal to the product of the coil\'s inductance and the rate of change of current.

The CM1812R600R-10 also has a low pass filter function. The coil creates a low-frequency cut-off point, which is determined by the product of the coil\'s inductance and capacitance. The cut-off frequency is determined by the coil\'s internal capacitance and the load capacitance. As the frequency of the incoming signal increases, the capacitor begins to block the signal, causing the current to decrease. This decrease in current effectively blocks the high frequency noise, resulting in cleaner power.

Conclusion

The CM1812R600R-10 common mode choke is a reliable and effective component for EMI/RFI noise suppression. Its high impedance and low-pass filter functions make it suitable for use in a variety of applications, including audio and video systems, switching power supplies, and voltage regulators.

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