744232261 Filters

Series:	WE-CNSW
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Filter Type:	Signal Line
Number of Lines:	2
Impedance @ Frequency:	260 Ohms @ 100MHz
Current Rating (Max):	310mA
DC Resistance (DCR) (Max):	500 mOhm
Voltage Rating - DC:	50V
Voltage Rating - AC:	--
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Approvals:	--
Features:	--
Mounting Type:	Surface Mount
Size / Dimension:	0.126" L x 0.063" W (3.20mm x 1.60mm)
Height (Max):	0.083" (2.10mm)
Package / Case:	Horizontal, 4 PC Pad

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Common Mode Chokes

Common mode chokes (CM chokes) are electrical devices commonly used to suppress electromagnetic interference (EMI). They are electrical components designed to attenuate, or reduce, the interference on a signal line. CM chokes are used in a variety of applications, including medical imaging, military, aerospace, and consumer electronics.In their simplest form, CM chokes consist of several turns of a low-impedance conductor, such as a copper wire, wound around a core material. This core material can be either air, ferrite, or a combination of the two. The core material allows the CM choke to effectively reduce the interferences on the signal line. CM chokes are typically designed with the goal of preventing high frequency and/or common mode noise from entering or exiting the signal line.CM chokes are primarily used for two purposes: to reduce the noise entering or exiting a device, and to improve common-mode impedance matching between two devices. By reducing the incoming noise on the signal line, the device can operate more reliably. Additionally, an improved common mode impedance can reduce the amount of current in a circuit, reducing the risk of failure or damage to electronics.When a signal line is connected to a device, the resistance of the line and of the device together form an impedance. This impedance affects the current flow in the circuit, which can cause additional noise or interference. By adding a CM choke to the line, the CM choke reduces the impedance at the connection and between the two devices, which helps reduce the noise and interference. CM chokes can also be used to reduce the amount of common mode noise in a system. Common mode noise is the type of noise that travels along the shield or common grounds of a signal line. This noise is caused by the induction of electromagnetic interference onto the signal line, which can cause errors in the signal or degrade its performance. By adding a common mode choke to the signal line, the chokes helps reduce the common mode interference and improves the signal quality.CM chokes are commonly used in applications such as Ethernet cables, medical electronics, and consumer electronic devices. For the most part, they are relatively low cost and easy to install. However, due to their size and shape, they can sometimes be difficult to fit into certain applications.In addition, CM chokes are also used in automotive applications. In some applications, such as spark plug wires or fuel injection systems, the CM choke helps reduce electromagnetic interference (EMI) and spark plug noise. In other applications, such as braking systems or cruise control units, the CM choke helps reduce the amount of inductance in the circuit, improving the performance and reliability of the components.Overall, CM chokes have proven to be an effective solution for reducing or eliminating the amount of interference in signal lines, while also providing improved common mode impedance matching. With their low cost and wide range of applications, CM chokes are likely to continue to be a popular choice for EMI reduction.

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Part Number	Manufacturer	Price	Quantity	Description