EH28-1.5-02-20M Filters

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Common Mode Chokes (CMC) are electronic components designed to reduce conductive and capacitive interference on a signal line. CMC are among the most effective tools for noise control and reducing electromagnetic interference (EMI). They work by suppressing common mode noise – typically EMI from power and signal cables – from entering circuits. CMCs are passive devices, meaning they do not require power to operate. The EH28-1.5-02-20M is a specific CMC with application fields and an internal working principle. The EH28-1.5-02-20M is designed for use in low-noise circuits requiring high EMI protections. This model is developed for frequencies from 10MH to 2GHz and is a single line component. With a minimum inductance of 0.1µH, it offers high protection while delivering exceptional performance. The EH28-1.5-02-20M is designed for use in high-frequency, narrow-band circuits, including computers, telecommunications, and industrial control units.The internal working principle of the EH28-1.5-02-20M is based on its special structure. The component comprises two windings with dampers and interleaved, stacked ferrite pieces. This construction has the unique capability to trap different wave lengths. From the two windings, one is a high-inductance choke winding and the other is a highly capacitive pulse transformer winding. When a signal is passed through the component, the choke winding reduces the high-frequency signal and the capacitive winding reduces the low-frequency signal. The combination of both these effects creates an increased attenuation at all frequencies, allowing a high-performance noise reduction in a single component. The EH28-1.5-02-20M provides various advantages, including a high-temperature range of -40 to +125°C, a high frequency operation of 10 MHz to 2 GHz, and a low impedance of 0 ohms. The component also offers a high degree of flexibility, as it can be used in different configurations, such as board-level mounting, dip soldering, or as a header with PC contacts. The component is also shielded and RoHS-compliant. In summary, the EH28-1.5-02-20M is an effective common mode choke developed for use in low-noise circuit applications. Its particular construction allows it to reduce noise interference from different wave lengths while guaranteeing high performance. The component offers a high temperature range with excellent flexibility for different configurations. As such, it is an ideal electronic component for applications requiring EMI protection.

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