BLM21BD272SN1L

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Ferrite beads and chips are components that can improve the performance of electrical and electronic products. BLM21BD272SN1L is a kind of ferrite bead. It mainly acts as a low-pass filter of high-frequency signals. It can reduce the noise of the high-frequency signal passing through the component and reduce the impedance of the circuit. Its application field and working principle will be introduced in this article.

Application

BLM21BD272SN1L mainly used to suppress EMI (electromagnetic interference). It is mainly used in electronic products such as mobile phones, computers, LCD TVs, automotive electronics, communication devices and so on, to reduce the radiation effect of electromagnetic waves and shield the conductive loop of signal EMC. It can also be used to ensure signal integrity. Besides, it can also be used for power supply line filter or sensor and signal line filter.

Working Principle

BLM21BD272SN1L mainly uses the ferromagnetism phenomenon of ferrite. This ferrite bead has the characteristics of high resisting rate and low costing. The whole device can be divided into two parts: a ferrite core and a inductance body. The inductance body has two ends, one of them is connected to the power line and the incoming signal is input from the other end. The signal passing through the ferrite core will be inducted an AC current caused by the AC magnetic field, which will lead to the increase of the impedance of the ferrite core. Therefore, the high-frequency noise signal is filtered, and the high-frequency noise is attenuated.

In addition, BLM21BD272SN1L can improve the signal-to-noise ratio and reduce the power supply voltage ripple, which ensures the normal operation of the circuit. It has the characteristics of low insertion loss, low signal distortion, low operating temperature and easy adjustment of impedance.

Conclusion

In recent years, BLM21BD272SN1L has become increasingly popular, mainly due to its low cost and strong noise reduction effect. It is widely used in the field of electronic products, and its performance has been recognized by many manufacturers. This ferrite bead has many advantages, such as low insertion loss, low signal distortion, and easy adjustment of impedance. In addition, its application field and working principle are also quite simple. That\'s all for the introduction of BLM21BD272SN1L application field and working principle.

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