CMT1-7-R

Voltage Rating - AC:	--
Package / Case:	Vertical, 4 PC Pin
Height (Max):	1.437" (36.50mm)
Size / Dimension:	1.161" L x 0.866" W (29.50mm x 22.00mm)
Mounting Type:	Through Hole
Features:	--
Approvals:	--
Ratings:	--
Operating Temperature:	-40°C ~ 125°C
Series:	CMT
Voltage Rating - DC:	--
DC Resistance (DCR) (Max):	80 mOhm (Typ)
Current Rating (Max):	2.89A
Inductance @ Frequency:	4.2mH @ 10kHz
Number of Lines:	2
Filter Type:	Power Line
Part Status:	Obsolete
Packaging:	Bulk

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Common Mode Chokes A common mode choke (CMT1-7-R) is an electrical component that helps to reduce electrical noise in a system by absorbing it. It works by using a ferrite core, which exhibits a very high inductance to currents flowing through it. The choke is designed to provide a low pass filter that is especially effective at rejecting common mode noise, which is noise that is generated by components in the system that have an alternating current flowing through their components. The choke works by providing a path of low impedance to currents in the accepted frequency range and a high impedance path for frequencies outside this range.The CMT1-7-R is a type of common mode choke that is designed to work with ac current, not dc current. It is a large inductor with a single choke winding made up of several turns of wire wrapped around a ferrite core, which modulates the impedance of the common mode filter to a certain frequency range. This type of choke is usually found in motor controllers and power supplies, where it is used to reduce noise from power sources.The working principle of the CMT1-7-R is based on its inductive nature. When the ac current passes through the choke winding, it creates a magnetic field around the core. This field induces an opposing voltage, which acts as an opposition to the current and creates an impedance that blocks noise from entering the system outside of the chosen frequency range. In addition, the choke creates a low pass filter that reduces high-frequency interference, ensuring that only the signals within the designated frequency range are allowed to enter the system.The CMT1-7-R is commonly used in industrial and military applications, such as motor controllers, power supplies, and audio systems. In motor controllers, it is used to reduce electrical noise generated from the motor\'s magnetic field, allowing for smoother, quieter operation. In power supplies, it is used to reduce interference from electromagnetic sources, such as lightning. And in audio systems, it helps to reduce humming and hissing sounds from the speakers.The CMT1-7-R is a reliable and cost-effective solution for controlling common mode noise in various ac power applications. It features a proven track record of noise reduction in various industrial and military applications, providing excellent performance and reliable protection against electrical noise. The choke is also simple to install and maintain, making it an ideal solution for engineers and technicians seeking an efficient way to reduce common mode noise in their systems.

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