ELF-18D656X

Voltage Rating - AC:	--
Package / Case:	Vertical, 4 PC Pin
Height (Max):	1.362" (34.60mm)
Size / Dimension:	1.142" L x 0.827" W (29.00mm x 21.00mm)
Mounting Type:	Through Hole
Features:	--
Approvals:	--
Ratings:	--
Operating Temperature:	--
Series:	V
Voltage Rating - DC:	--
DC Resistance (DCR) (Max):	111 mOhm (Typ)
Current Rating (Max):	2.2A
Number of Lines:	2
Filter Type:	--
Part Status:	Obsolete
Packaging:	Bulk

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Common Mode Chokes
Common Mode Chokes are high frequency electronic components that act as a filter against common mode interference in electrical and electronic systems. Many types of EMI (electromagnetic interference) can cause electric and electronic devices to malfunction. Common Mode Chokes are one of the most effective methods for managing these potentially harmful sources of interference.ELF-18D656X is a common mode choke manufactured by Murata Electronics North America, Inc. This device provides high efficiency filtering of common mode noise across the frequency range from 0 to 30MHz. It comprises a single pair of inductors connected in a parallel or series configuration, and is designed to reduce the impact of radio frequency interference (RFI) and Electromagnetic Interference (EMI).The ELF-18D656X features a Symmetrical Thermoplastic Core that is designed to ensure consistent low inductance and high common mode attenuation. The core also acts as a shield against conducted interference from adjacent components, reducing the need for external shielding. The ELF-18D656X is also RoHS compliant and meets AEC-Q200 guidelines for automotive applications. The working principle of a common mode choke is based on the principle of inductance. The electrical current that passes through a wire which has the choke attached will generate a magnetic field, whose strength is proportional to the amount of current passing through the wire. This magnetic field either opposes or reinforces the magnetic field of any external sources of interference, depending on whether the current is flowing in the same direction or in opposite directions. The ELF-18D656X is particularly suitable for use in automotive applications, due to its wide frequency range and high common mode attenuation. This makes it ideal for applications such as automotive audio systems, navigation devices and video displays. It is also suitable for use in industrial and military applications.In summary, the ELF-18D656X is a high frequency common mode choke that offers high efficiency filtering of common mode noise across a wide frequency range. It features a Symmetrical Thermoplastic Core for improved efficiency and is optimised for automotive applications. This makes it ideal for use in a range of applications, from automotive audio systems to military equipment.

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