BLM18BA750SN1D

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Ferrite is a type of magnetic material used to form beads, also known as Ferrite Beads, that are designed to be placed around a wire or a set of wires in order to allow for the inductive or capacitive effects that can occur when dealing with electrical components. Ferrite beads and chips are used in a wide range of applications and, in order to better understand the applications and working principles of these components, we will be taking a look at the BLM18BA750SN1D ferrite bead.

The BLM 18BA750SN1D ferrite bead is a 0805 size, surface mount multilayer magnetic filter designed to isolate unwanted high frequency noise signals in order to improve the signal quality of data lines or signal lines in a variety of digital and analog circuit designs. These beads are also used to reduce the overall effect of electromagnetic interference (EMI) on system performance.

When it comes to the BLM 18BA750SN1D application field, it can be used in tablets, smartphones, automotive systems, computers, networking products, security systems, and other applications where it is necessary to maintain signal integrity. The bead is rated at 18 Ω based on IEC 60288, and can handle up to 6.2A current. The operating temperature range is -40℃ to +85℃.

In terms of working principle, ferrite beads are designed to provide a low impedance barrier to high frequency noise signals that can adversely affect the performance of digital and analog circuits. A ferrite bead’s impedance is high at low frequencies and impedance decreases with a rise in frequency, reaching a minimum at its cut-off frequency. The bead has an air core and a highly permeable ceramic construction which ensures that the level of attenuation does not change with the DC bias current. The peak performance of this bead is most evident when operating between 20MHz and 1800MHz.

These beads are also built with a high saturation flux density in order to provide the maximum amount of inductance and effectively reduce common-mode noise. Furthermore, the bead has a high insulation resistance of at least 1000 MΩ @ 500V DC; it has low self-capacitance and low series resistance as well.

Overall, the BLM18BA750SN1D is a high-performance ferrite bead that can help reduce signal interference in various applications. It offers optimized performance over a wide range of frequencies, is highly reliable and can be used for a variety of applications.

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