EV20-0.5-02-18M

Series:	EV
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Filter Type:	Power Line
Number of Lines:	2
Inductance @ Frequency:	18mH @ 400Hz
Current Rating (Max):	500mA
DC Resistance (DCR) (Max):	725 mOhm (Typ)
Voltage Rating - DC:	--
Voltage Rating - AC:	250V
Operating Temperature:	-25°C ~ 100°C
Ratings:	--
Approvals:	--
Features:	--
Mounting Type:	Through Hole
Size / Dimension:	0.827" L x 0.630" W (21.00mm x 16.00mm)
Height (Max):	1.024" (26.00mm)
Package / Case:	Vertical, 4 PC Pin

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Common Mode Chokes

Common mode chokes are inductors specifically designed to block common mode currents. Common mode currents may result from differences in ground potential between two devices that are connected together, such as a motor and a power supply. The common mode current flows from one device to the other through the common ground. The common mode choke is thereby used to block the common mode current, so that the two devices are safely isolated from one another.The EV20-0.5-02-18M is a specific type of common mode choke that is used to reduce EMI (electromagnetic interference) and RFI (radio frequency interference) in a variety of applications. The choke is designed to attenuate noise in the frequency range from 10kHz to 30MHz, and has a rated current up to 18A. It has a maximum operating temperature of 125°C and an inductance range of 0.5 – 20uH.The EV20-0.5-02-18Mcommon mode choke is commonly used in many types of power electronic system, including switching power supplies, industrial drives and inverters. Its main function is to reduce the level of EMI and RFI noise that is present in the system. By blocking the common mode currents, the EV20-0.5-02-18M can effectively reduce the level of noise that is present in the system, which may otherwise interfere with other electronic devices.In addition to its use in power electronics, the EV20-0.5-02-18Mcommon mode choke can also be used in high-speed data transmission systems to reduce the level of EMI and RFI noise. By blocking the common mode currents, the EV20-0.5-02-18M can reduce the interference of electromagnetic signals, allowing for a more reliable and accurate data transmission.The working principle of the EV20-0.5-02-18M common mode choke is based on Faraday\'s law of electromagnetic induction. When an alternating current is applied to a coil, a magnetic field is created which induces an opposing voltage in the same coil. This opposing voltage is proportional to the rate of change of the magnetic field, and is directly proportional to the rate of change of the current through the coil. By using two coils with the same number of windings, and applying the same current in opposite directions through each coil, a common mode choke can be created. The opposing voltages created in each coil by the alternate current produces a cancellation effect, thereby reducing the overall level of voltage and current in the circuit. The inductance of the coils also affects the reduction of noise, as the inductance of the coils acts as a low pass filter, attenuating the high frequency signals that are responsible for EMI and RFI.In summary, the EV20-0.5-02-18Mcommon mode choke is a high-performance device designed to reduce EMI and RFI noise in power electronic systems and data transmission systems. Its working principle is based on Faraday\'s law of electromagnetic induction, and it utilizes two coils with the same number of windings which produces a cancellation effect, reducing the overall level of voltage and current in the circuit.

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