MH3261-190Y

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Ferrite beads and chips are one kind of tiny parts whose main purpose is for EMI (Electromagnetic Interference) and EMC (Electromagnetism Compatibility). They are usually used as filters or attenuators on small circuits such as PCBs (printed circuit board). The MH3261-190Y is one of the ferrite bead and chip.

Application Field of MH3261-190Y

MH3261-190Y has the features of both EMI noise suppression and high-frequency common-mode noise suppression, and they are broadly used in low-frequency ripple suppression and common-mode noise suppression for many low-frequency power supplies and telephone lines.

It is mainly used for power supplies of small household appliances such as cellular phone chargers, AC/DC converters, etc. And it is also used for AC/DC adapters of instrument, radio, interphone and small household appliances.

Working Principle of MH3261-190Y

MH3261-190Y also features a ferrite core and two wires wound around it. When noise is present in the power supply, the core and the two wires create a mini transformer. This mini transformer acts as a low-impedance path for the noise, preventing it from entering the load. It also provides an inductive load, limiting the current in the circuit and preventing damage to the device.

In the device, a capacitor is connected parallel to the ferrite core to filter out high-frequency noise. In addition, a resistor may be added in series to control the ferrite core\'s peak current and reduce the generated heat.

MH3261-190Y is often used in circuits where the impedance is less than 100 ohms for capacitor and resistor combination. This helps to reduce parasitic impedances and reduce common-mode currents. This increases power transfer efficiency and reduces emitted EMI.

Conclusion

MH3261-190Y is a small ferrite bead and chip widely used in many electronic and power supplies. It combines the features of EMI noise suppression and high-frequency common-mode noise suppression to effectively reduce EMI. It is used in many low-frequency power supplies and telephone lines. It also has a capator and resistor connected parallel and series respectively, which help to reduce parasitic impedance and reduce common-mode currents.

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