CMS3-13-R

Voltage Rating - AC:	--
Package / Case:	Horizontal, 4 PC Pad
Height (Max):	0.236" (6.00mm)
Size / Dimension:	0.550" L x 0.550" W (13.97mm x 13.97mm)
Mounting Type:	Surface Mount
Features:	--
Approvals:	--
Ratings:	--
Operating Temperature:	-40°C ~ 160°C
Series:	CMS
Voltage Rating - DC:	--
DC Resistance (DCR) (Max):	210 mOhm (Typ)
Current Rating (Max):	880mA
Inductance @ Frequency:	1.03mH @ 100kHz
Number of Lines:	2
Filter Type:	Power Line
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Common Mode Chokes
A common mode choke (CMS3-13-R) is a device designed to attenuate common mode noise on electrical power or signal lines. It is a dual-coil device that produces a small inductance when placed in series with two power lines. Common mode chokes are used in a wide range of fields, such as in communication systems, automotive systems, medical equipment, etc.The most common type of common mode choke is the ferrite core CMS3-13-R, which is a temperature independent device. It has a wide frequency response range from low to high frequencies, and can withstand up to 4 Amperes of current. It contains two small coils of wire wound around a core consisting of a ferrite material. The coils are spaced apart from each other, and the size of the core is dependent on the design of the choke.The working principle of a CMS3-13-R common mode choke is based on two main principles. The first principle is that it has an inductive reactance, which means that it has an opposing magnetic field that counters the current flow. The second is that it has an electric capacitance, which gives it a high-frequency filtering capability. These two principles work together to suppress common mode noise on power lines.The inductive reactance of a ferrite core CMS3-13-R is determined by its construction. The inner coil serves as the inductor, and the outer coils serve as the capacitor. When the voltage across the device is high, the combined reactance of the inner and outer coils causes the inductor to reduce the current flowing through it. The capacitor, on the other hand, tends to store the current and prevent it from flowing in the line. By combining the two elements, the device filters out noise from the power line.The electric capacitance of a ferrite core CMS3-13-R is dependent on the size of its core. The core determines the size of the coils, and the size of the coils determines the amount of capacitance. The larger the core size, the larger the capacitance of the choke. This, in turn, determines how effective the choke is in suppressing high frequency noise on the line.In addition to the above, a CMS3-13-R common mode choke also features a unique distributed windings topology. This topology is designed to provide an even spread of magnetic fields, which can help reduce cross-talk and interference on the line. It also helps to reduce current harmonics, which can cause signal interference.The general application field of a CMS3-13-R common mode choke is in systems and electrical circuits that require noise mitigation and suppression. The device is also used in high voltage power lines, communication systems, automotive systems, and medical equipment. This type of choke is also suitable for other applications that require noise suppression, such as in consumer electronics, office equipment, and even aerospace.In conclusion, a CMS3-13-R common mode choke is an essential noise suppression device for use in many different kinds of systems. Its inductive reactance and electric capacitance provides an effective means of filtering out common mode noise, while its distributed winding topology helps reduce current harmonics and cross-talk interference. The device is also suitable for use in a wide range of applications, such as in communication systems, automotive systems, and medical equipment.

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