HM28-20003LF

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Common Mode Chokes are widely used in many areas such as industrial automation, power electronic systems, and signal processing, due to their ability to prevent electrical noise from affecting connected electrical circuits. The HM28-20003LF is an example of this type of device. It is a 45ohm surface mount Ferrite Common Mode Choke designed to filter out differential and common mode signals.

The HM28-20003LF consists of a two-core Ferrite coil, encapsulated in a thermoplastic enclosure. The enclosure is designed to help protect the coil from physical damage and prevent electrical shorts from internal or external sources. Inside the enclosure are two coils wound around an internal core, which are connected in series to each other. The two coils are wound in opposite directions and are configured to achieve the desired common mode suppression, while still allowing a differential signal to pass through.

The two coils of the HM28-20003LF are designed to reject common mode noise, while allowing a differential signal to pass through. The differential signal is the desired signal and the common mode noise is the undesired signal. The common mode choke works by suppressing the common mode noise and allowing the differential signal to pass through. The amount of noise that can be suppressed is determined by the design of the common mode choke. In the case of the HM28-20003LF, the two coils are designed to reject noise levels up to 60 dB.

The HM28-20003LF can be used in a wide variety of applications. It is ideal for use in applications where electrical noise needs to be reduced such as motor speed control, automotive audio systems, embedded systems, and telecommunications. It is also suitable for use in industrial environments where high levels of electromagnetic interference (EMI) are present. It is an ideal solution for reducing the impact of EMI on connected circuits.

The working principle of the HM28-20003LF is simple. The two coils absorb the common mode signals, while allowing the differential signal to pass through unimpeded. The differential signal is then passed on to the connected circuits free from electrical noise. The device acts like a shield between the interconnected circuits and any sources of EMI or electromagnetic noise. The amount of noise that can be suppressed depends on the design of the common mode choke.

The HM28-20003LF is a high-performance surface mount common mode choke designed to reduce differential and common mode noise. Its two coils are designed to reject noise levels up to 60 dB and it is capable of providing a reliable and cost-effective solution for many applications where noise suppression is needed. It is ideal for industrial applications where high levels of EMI and noise are present, as well as for applications where differential and common mode interference must be prevented.

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