TLF12UA103W0R7

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Common Mode Chokes are used as filters for the suppression of common mode noise. The TLF12UA103W0R7 is a common mode choke designed to suppress common-mode noise on AC power lines. The choke is a ferrite core type, and its characteristic impedance is between 10-1000Ω. The main purpose of the TLF12UA103W0R7 is to block common-mode currents, while allowing desired signals to pass through.

The TLF12UA103W0R7 is a current-limiting, high-performance choke designed for use in consumer electronics, computerized systems, home appliances, automotive electronics and industrial control circuits. The device has a low profile and is small enough to fit in tight spaces. It is constructed of a ferrite core and two windings wound in opposing directions. The windings are insulated from each other, and the choke is enclosed in a plastic housing.

The primary application of this device is in AC line filtering, where it filters out unwanted noise and disturbances caused by high-frequency switching circuits. Apart from AC line filtering, the TLF12UA103W0R7 can also be used for common-mode noise suppression in signal lines, such as those found in audio lines and data lines. In addition, it can be used in low-voltage power supplies, DC-DC converters, and automotive electronics.

The TLF12UA103W0R7 is designed to operate over a wide range of frequencies, from 10KHz to 300MHz. It is an effective EMI/EMC filter that effectively blocks common-mode currents up to its rated current, while allowing desired signals to pass. It also provides a low-impedance connection to ground, thus providing a low-noise path for high-frequency switching components. The rated voltage of the device is 300V AC, and it is UL-recognized and CE-marked.

The working principle of the TLF12UA103W0R7 is based on two concentric windings wound in opposite directions. The windings are insulated from each other and the ferrite core acts as a low-impedance path to ground. When current is passed through the windings, a magnetic field is generated around the ferrite core. The magnetic field acts to inductively couple noise and other undesired signals, resulting in a common-mode conductive path. The device is designed to have a high inductance that effectively blocks common-mode currents while allowing desired signals to pass.

In conclusion, the TLF12UA103W0R7 is a common mode choke designed for EMI/EMC filtering of AC power lines, signal lines, and low-power electronics. It is highly effective in filtering out unwanted noise and disturbances caused by high-frequency switching circuits, and provides a low-impedance connection to ground, thus providing a low-noise path for high-frequency components. The device is UL-recognized and CE-marked, and has a wide operating frequency range of 10KHz to 300MHz.

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