ELF-18D423

Voltage Rating - AC:	250V
Package / Case:	Vertical, 4 PC Pin
Height (Max):	0.807" (20.50mm)
Size / Dimension:	0.945" L x 0.984" W (24.00mm x 25.00mm)
Mounting Type:	Through Hole
Features:	--
Approvals:	--
Ratings:	--
Operating Temperature:	-20°C ~ 105°C
Series:	H
Voltage Rating - DC:	--
DC Resistance (DCR) (Max):	1.136 Ohm (Typ)
Current Rating (Max):	600mA
Inductance @ Frequency:	27mH @ 1kHz
Number of Lines:	2
Filter Type:	--
Part Status:	Obsolete
Packaging:	Bulk

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Common Mode Chokes

Common Mode Chokes are used to limit the flow of alternating current (AC) or direct current (DC) into a circuit or system. They are comprised of a two-conductor coil of wire, which is wound around an iron core. The core creates a network that suppresses electromagnetic interference (EMI) and noise, allowing the signal to remain relatively clean and protect other components from dangerous voltage variations. They are used frequently in telecommunications, radio frequency applications, and power line filters. ELF-18D423 is a commercial-grade, three-phase common mode choke. It is designed to deal with EMI issues such as line transients, power surge, and frequency sensitivity. The choke is constructed with a high-permeability ferrite core and is insulated with silicone and conformal coating. It is built for a wide range of frequencies from 300kHz - 3MHz and is rated to operate between -40°C and 85°C. The ELF-18D423 works by dissipating high-frequency EMI on the power line in the form of a growing magnetic field whose signals are absorbed by the ferrite core. At the same time, low-frequency AC current is allowed to pass through the core\'s windings. When an EMI signal attempts to flow through the windings, the magnetic field dissipates and the noise is absorbed by the core. The choke is also designed to attenuate spikes and high-frequency transients. The ELF-18D423 is widely used in industrial, telecom, lighting, and consumer appliance applications. It is often found in appliances like refrigerator, mixer, and food processor, as well as in switch mode power supplies or uninterruptible power supplies (UPS). The choke is also used to protect sensitive electronic equipment from voltage irregularities and power fluctuations. Finally, the ELF-18D423 helps stimulate machinery and primitive proto-type transients in medical device designs. Overall, the ELF-18D423 is a reliable and energy-efficient component that provides excellent current suppression and filtering performance. Its three-phase design makes it suitable for most industrial and commercial applications, and its wide operating temperature range and high performance ratings ensure that it is able to withstand the toughest conditions.

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