TF3524B-702Y4R0-01

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Common Mode Chokes

The TF3524B-702Y4R0-01 is a common mode choke, a type of electrical filter, used to remove common mode noise in data and power transmissions. As EM interference increasingly affects electronic devices and systems, common mode chokes are becoming more widely used for eliminating such noise and avoiding excessive power losses. Common mode chokes are components that reduce common-mode noise along with differential-mode noise, and are more effective than other filters. These active common mode chokes are used for power supply lines, data transmission lines, and other electric and electronic circuits.

The TF3524B-702Y4R0-01 is an example of the common mode choke which takes the form of an inductor. It has an outside diameter of 3.5mm, an inner diameter of 2.4mm, and a length of 4.0mm. The operating temperature range is -100°C ~ +120°C. It consists of four wires wound around a magnetic core, which acts as the balun inductor and provides high frequency common mode transmission line noise attenuation. It provides excellent shielding of common mode noise generated by large currents between the two conductors. The frequency range is 25MHz ~ 400MHz, which is well suited for Ethernet LAN applications.

The TF3524B-702Y4R0-01 is widely used in power supplies and communication systems, such as networking equipment, HDTVs, and audio/video equipment. It is suitable for 10/100Base-T, HomePNA, WLAN, and ISM applications. It can also be used to suppress EMI in the following systems: fax equipments, AC/DC adapters, switching power supplies, LCD TVs, CATV systems, and other analog and digital applications.

How does the TF3524B-702Y4R0-01 work? This common mode choke works by providing a magnetic field around the wires, which serves to block the interference signals. This magnetic field is generated by the alternating current in the two lines, with each conductor carrying the opposite polarity current thus creating an opposing magnetic field around the wires. As a consequence, the interference is absorbed by the flux lines of the magnet and kept away from the rest of the circuit, thus providing the necessary isolation from the noise.

The device also functions as a low-pass filter. It is designed to allow frequencies below a certain limit to pass, while blocking higher frequencies. This is due to the fact that the device has a self inductance that decreases at higher frequencies. Thus, it can provide the necessary shielding from interference while allowing for the transmission of the desired signals at the desired frequency. This is important for applications where the transmission of a signal at a certain frequency is necessary, such as for frequency hoppers used for wireless communication systems.

Overall, the TF3524B-702Y4R0-01 is a very effective, efficient, and economical component for reducing common-mode and differential-mode noise in a wide range of applications. It offers excellent noise attenuation, good filtering capability, good shielding, and low insertion loss. These characteristics make it ideal for use in a wide range of electrical and electronic systems.

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