ECMF04-4AMX12 Filters

Voltage Rating - AC:	--
Package / Case:	12-UFDFN
Height (Max):	0.024" (0.60mm)
Size / Dimension:	0.130" L x 0.059" W (3.30mm x 1.50mm)
Mounting Type:	Surface Mount
Features:	ESD
Approvals:	--
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Series:	ECMF
Voltage Rating - DC:	--
DC Resistance (DCR) (Max):	2.5 Ohm
Current Rating (Max):	200mA
Number of Lines:	4
Filter Type:	Signal Line
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Common Mode Chokes

Common mode chokes (CMCs) are specialized electrical components designed to provide effective isolation of signals and noise in high frequency electronic circuits. CMCs have inductive elements that, when linked together, create a “coil” arrangement formed of multiple loops that allow signal separation (or “decoupling”) between circuits. A common mode choke works by providing an impedance in series with the signal, which removes the noise components while allowing the intended signal to pass freely.ECMF04-4AMX12 is a type of common mode choke. This device has four separate coil elements molded in a single plastic package and integrated into the circuit board. Each coil is made from a ferrite core and has two windings which are both magnetically linked to the same core. The core materials used in ECMF04-4AMX12 are designed to provide high-frequency noise suppression and wide band signal isolation. ECMF04-4AMX12 can be widely used in both consumer electronics and industrial applications. In consumer electronics, ECMF04-4AMX12 can be found in products such as computers, TVs, and mobile phones. In industrial applications, ECMF04-4AMX12 can be used to reduce electrical noise in high-speed data transmission systems, RF and power line networks, and other sensitive high-frequency electronic circuits. The working principle of ECMF04-4AMX12 involves the blocking of currents through the choke that have an identical pattern on both its input lines, referred to as common mode currents. These common mode currents can be generated by electrical interference when the two signal lines migrate across different logic levels, resulting in unwanted signals that could interfere with the intended signal. By blocking these common mode currents, ECMF04-4AMX12 can reduce the amount of electrical noise present in the circuit.The ECMF04-4AMX12 also provides superior signal-to-noise ratio (SNR) performance over a wide range of frequencies. This enhanced SNR performance is beneficial for high-speed digital systems, as it reduces the incidence of false triggering and signal corruption. This is especially important for high frequency RF applications, where common mode noise can impinge on the quality of the signal received. The four separate ferrite coils of ECMF04-4AMX12 also acts as a filter. The device can filter out both common mode noise and differential mode noise, depending on the frequency and the impedance of the electronic circuit. In addition, it can filter out a wide range of frequencies ranging from low frequency 50/60 Hz power line noise up to 1 GHz signals. Overall, ECMF04-4AMX12 is capable of providing effective blocking and filtering of both common mode and differential mode noise at high frequencies, making it an ideal choice for a variety of applications. In summary, ECMF04-4AMX12 is a type of common mode choke optimized for high-frequency applications. Its four interconnected coils offer effective noise suppression and signal isolation in both consumer electronics and industrial applications. It also provides excellent SNR performance over a wide frequency range, making it well-suited for high-speed digital systems. Lastly, its filtering capability allows it to effectively block both common mode and differential mode noise.

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