CMJ-2-101

Voltage Rating - AC:	--
Package / Case:	Horizontal, 4 Flat Lead
Height (Max):	0.179" (4.55mm)
Size / Dimension:	0.299" L x 0.228" W (7.60mm x 5.80mm)
Mounting Type:	Surface Mount
Features:	--
Approvals:	--
Ratings:	--
Operating Temperature:	0°C ~ 70°C
Series:	CMJ
Voltage Rating - DC:	--
DC Resistance (DCR) (Max):	260 mOhm
Current Rating (Max):	500mA
Inductance @ Frequency:	100µH @ 100kHz
Number of Lines:	2
Filter Type:	Signal Line
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Common Mode Chokes

Common Mode Chokes, also known as CM Chokes or CMJ Chokes, are electrical devices which are used to suppress common-mode noise in electronic circuits. CM Chokes are commonly used in power supplies, DC-DC converters, and other electronic circuits where common-mode noise may be present. The CMJ-2-101 is a type of CM Choke which is popular due to its small size, low profile, and high efficiency.The CMJ-2-101 is a helical common-mode choke made from ferrite core material that is wound with two turns of enameled copper wire and encapsulated in UL94V-0 flame retardant epoxy. This type of CM choke has a high rated current of 2A and is designed to operate between zero and 10MHz. The CMJ-2-101 has a low profile of 10mm and a 0.6mm diameter which makes it suitable for a range of applications that require a small form factor.The working principle of the CMJ-2-101 is based on Faraday\'s Law which states that a voltage is induced in a loop of wire when there is a change in magnetic flux. This is known as the electromagnetic induction. The CMJ-2-101 utilizes this principle to create an inductive reactance which suppresses common-mode noise that is present in the electronic circuit.The primary application of the CMJ-2-101 is as a Common Mode Choke in power supplies and DC-DC converters. Common-mode noise generated by these circuits often contains higher order harmonics which raise the system’s harmonics distortion. By using the CMJ-2-101, these harmonics are reduced significantly and the system’s power quality is improved.The CMJ-2-101 is also used in other applications such as electromagnetic interference (EMI) filters, antenna masts, signal transmission lines, and automotive wiring harnesses. In these applications, the CMJ-2-101 suppresses common-mode noise in the circuits and improves the quality of transmitted signals.The CMJ-2-101 is recognized for its high efficiency and small size which makes it suitable for a variety of applications. It is an ideal choice for electronic engineers when selecting a common-mode choke for their specific application.

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