ELF-14M020E

Common mode chokes are a type of electrical device designed to block unwanted signals from entering or exiting a circuit. They are commonly used in applications such as audio, video and data transmission. The ELF-14M020E is a type of common mode choke designed for low frequency applications. It is constructed from a ferrite core and two coils that are wound in opposite directions. This particular model offers high-impedance levels and low-DCR levels, making it ideal for suppressing unwanted signals, particularly in applications where noise can be an issue.

The ELF-14M020E has a wide range of applications, particularly in communication systems such as GPS receivers, wireless networks, and adjacent broadcasting networks. It is most often used in equipment for radio technology, to minimise the amount of AC and RF interference that gets through the machine. The choke is also used in power systems to block DC currents, which can allow AC interference to pass through and create electrical noise. This is particularly important in fields such as medical testing, where accuracy is essential.

The ELF-14M020E also has a range of features designed to make it the most effective common mode choke for its given application. For instance, it offers a near-constant impedance over a frequency range of from 0.1 Hz to 10 kHz. This ensures that its suppression of interference is reliable, regardless of the frequency of the current. It also has a wide temperature range, allowing it to be used reliably in a range of environment conditions. Additionally, it is constructed with an environmentally friendly and robust protective coating, meaning that it can stand the test of time and is suited to a variety of applications.

The working principle of the ELF-14M020E is based on the idea of magnetic induction. It works by having two coils wound in opposite directions and placed around a ferrite core. When current is passed through the choke, the core magnetises in one direction and generates a magnetic field. This in turn will induce a flow of current in the opposite direction. This second current opposes the current entering the choke, effectively blocking it. This process, known as inductive reactance, is how the common mode choke blocks unwanted current.

The ELF-14M020E is a versatile and effective common mode choke, offering robust protection against unwanted signals and currents. With its high-impedance levels, low-DCR levels, and wide frequency range, it is suited for a variety of applications in both the domestic and commercial sectors. It is also designed to offer excellent temperature resistance and an environmentally friendly protective coating, making it reliable and long-lasting.