CMT-01301/1742302040Z Filters

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Common Mode Chokes (CMCs) are inductors designed to reduce or block noise between two electrically isolated circuits. The CMT-01301/1742302040Z is a type of CMC that is designed to suppress conducted emissions in a variety of electronics applications. It features superior power rating and high impedance in common-mode at all frequencies making it especially suitable for installations featuring digital signals, such as computer peripherals, audio/video equipment, and industrial machinery.

The CMT-01301/1742302040Z consists of two laminated cores clad in bobbin-style coil forms and is wound with two sets of windings. One winding is wound on the left core and the second on the right core. The two cores are interwound to form a single phase line choke. Each winding is insulated from the other with a thermally conductive material. The CMT-01301/1742302040Z also includes ferrite beads mounted to the outside of each winding and a steel shield to reduce EMI.

The CMT-01301/1742302040Z has several properties that make it useful for suppressing common-mode noise emitted from digital circuits. These include a high impedance to transverse electromagnetic fields at frequencies between 100 kHz and 1 GHz, coupled with a low inductance of just 3.9 mH for the common-mode path. This combination makes the CMT-01301/1742302040Z particularly effective for reducing conducted emissions from digital systems. It is also designed with a wide impedance range from 10 to 40 ohms for suppression across multiple frequencies.

The main working principle of the CMT-01301/1742302040Z involves generating and maintaining a differential magnetic field between the windings. This difference in magnetic fields creates a capacitive coupling between the windings, and as a result, a common-mode current is created. This current is then blocked or reduced by the ferrite beads and steel shield. The resulting noise reduction achieved by the CMC is dependent on the amount of capacitive coupling generated, and the impedance of the common-mode circuit.

The CMT-01301/1742302040Z is commonly used in applications such as computer peripherals, audio and video equipment, industrial machinery, and telecommunications. It can also be used to reduce the amount of EMI emitted from motor or solenoid actuators. The CMT-01301/1742302040Z is especially suitable for digital system installations, as it has an excellent power rating and a high impedance in common-mode at all frequencies.

In conclusion, the CMT-01301/1742302040Z is a type of Common Mode Choke designed to suppress conducted emissions in a variety of electronics applications. It features superior power rating, a high impedance in common-mode at all frequencies, coupled with a low inductance of just 3.9 mH for the common-mode path. The CMC works by generating and maintaining a differential magnetic field between its windings, which creates a capacitive coupling between them and blocks or reduces common-mode current. The CMT-01301/1742302040Z is thus suitable for installations featuring digital signals, such as computer peripherals, audio/video equipment, industrial machinery, and telecommunications.

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