BK2125HM121-TV Filters

Ferrite beads and chips have many applications. The BK2125HM121-TV is one popular application of these technologies. The BK2125HM121-TV ferrite chip is used for a variety of purposes, including signal, overall EMC performance, and electromagnetic interference (EMI) suppression. In this article, we’ll explore what the BK2125HM121-TV is, what its application fields and working principles are, and why it may be the right choice for signal integrity applications.

The BK2125HM121-TV ferrite chip is a member of the BK series of EMI suppression chips from Murata. It is compatible with Printed Circuit Board (PCB) sizes of up to 0.4 mm. This type of chip contains two layers of ferrite material that suppress EMI radiation from both the top and bottom surfaces. The chip is also relatively low in cost and has a high power dissipation due to its lower impedance value. This makes it an ideal choice for application in printed circuit boards where the size and weight restrictions are critical.

The BK2125HM121-TV application field is primarily in the signal integrity space. The chip helps reduce interference between signals while maintaining a higher signal level. It is often used in automotive applications, communication equipment, and electrical apparatus. Additionally, it can be used for FM radio, cellular networks, and wireless LANs. The BK2125HM121-TV chip also offers protection from power surges and voltages up to 1200V.

The basic principle behind the BK2125HM121-TV is known as “differential mode suppression.” The chip works by suppressing both differential (radiated) and common-mode (coupling) emissions. Differential mode suppression is based on the idea of creating an electric field in one direction while reducing the field in the opposite direction. This reduces the amount of energy radiated and couples to other parts of the circuit. Common-mode suppression works by creating an electric field in both directions, resulting in a balanced radiated and coupled energy.

The BK2125HM121-TV ferrite chip has two distinct advantages over the traditional ferrite beads and chips. One is the chip’s low impedance value, which allows it to absorb more power than the conventional ferrite bead. This makes it perfect for high-power applications, such as in automotive, medical, and aerospace applications. Furthermore, the chip is much thinner than the standard ferrite bead, allowing for easier implementation in PCB designs.

In conclusion, the BK2125HM121-TV ferrite chip is a great option for those looking to reduce EMI radiation and reduce signal interference. The chip offers low impedance, high power dissipation, and thinner sizes than traditional ferrite beads and chips. It is an ideal solution for signal integrity applications in automotive, communication equipment, and electrical apparatus. The chip works via the principles of differential mode and common-mode suppression, allowing it to effectively reduce the amount of radiation and coupling to other parts of the circuit.