MHQ0402P3N4BT000

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Fixed inductors, also known as chokes, coils, reactor or winding, are passive components used to introduce inductance into an electronic circuit in order to pass current in a controlled, predictable way. In its most basic form, an inductor comprises of a coil of wire wrapped around a core. As current passes through the coil, a magnetic field is created around it, effectively storing energy and preventing any changes in current. It is these characteristics that make fixed inductors ideal for use in power electronics circuits, such as boost and buck converters, inverters, and motors.

The MHQ0402P3N4BT000 chokes are fixed inductors designed with a 0.22mH inductance value for a maximum current rating of 3.3A. This particular series is commonly used in low-power applications to suppress transient noise on the DC line. These devices are constructed with a ferrite core and have a current-to-temperature thermal coefficient of 2.25°C/A. With a 100KHz frequency range and a -40°C to +105°C operating temperature, this series is well suited for use in small form-factor applications.

The inductors’ main application area is in switching power supplies. In this application, it functions as a low-pass filter for the input voltage. It is used to smooth the input waveform, suppressing excessive noise which may lead to oscillation or malfunctions in the overall power supply design. Additionally, the MHQ0402P3N4BT000 is also employed in various types of filter networks, such as low-pass and bandpass filters, to help ensure the performance and efficiency of the system.

The working principle of a fixed inductor is simple. When a current is applied to the inductor, it creates an EMF (electromotive force) which opposes any change or fluctuations in the current. That is, the EMF will be proportional to the rate of change of the current through the coil. This EMF acts as an opposing force causing the current to slow down, providing an inductive reactance to the circuit. In this way, it serves to regulate the flow of electric current, maintaining a constant current and suppressing transient noise.

The MHQ0402P3N4BT000 fixed inductors are ideal for use in applications where low power consumption and size are of the essence. Thanks to their solid construction, this series of inductors are able to handle a wide range of temperature and current levels without sacrificing reliability or performance. Additionally, their ability to suppress current and voltage fluctuations allows for improved efficiency and system performance.

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