ER1641-184JS

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Fixed inductors are a type of component used in electrical circuits that are capable of storing energy in the form of an electromagnetic field. The ER1641-184JS is a ceramic-based fixed inductor specifically designed for high-frequency switched-mode power supplies, providing a high coupling, low ESR, and excellent temperature stability. The ER1641-184JS is a small, low profile component that is ideal for use in low voltage applications.

The ER1641-184JS is constructed from high-grade ceramic which provides excellent thermal and mechanical stability, as well as strong insulation characteristics. The inductor also contains a high permeability core and is wound with a copper-laminated inductor wire. The inductor wire used is designed to provide low ESR and an excellent current waveform suitable for use in high frequency applications.

The inductance of the ER1641-184JS is 50μH ± 10%. It has a maximum DC current of 130mA and a recommended saturation current of 40mA. The operating temperature range is from -40°C to 85°C, with a recommended storage temperature range of -55°C to 125°C.

The ER1641-184JS is typically used as a fixed inductor in switched mode power supplies (SMPS) as well as other high frequency applications such as individual switching regulators, DC–DC converters, and voltage regulators. In a SMPS, the inductor acts as a filter that stores energy in the form of an electromagnetic field when the switch is off and provides energy to the load when the switch is on. It also acts as a buffer to reduce voltage spikes, allowing the power supply to provide smoother operation with less output voltage ripple.

The working principle of the ER1641-184JS fixed inductor is based on Faraday’s law of induction, which states that a changing magnetic field will induce a current in a nearby conductor. When an alternating voltage is applied to the inductor, a changing magnetic field is generated. This will then induce a voltage in the inductor in the opposite direction to the applied voltage, resulting in a reduction in the current through the inductor. The magnitude of the induced voltage is dependent on the rate of change of the applied voltage, the inductance of the inductor, and the amount of current flowing through it. The induced voltage will oppose the applied voltage and as a result, the current flowing through the inductor is reduced and an energy field is created.

In conclusion, the ER1641-184JS fixed inductor is a versatile component that is used in numerous applications due to its excellent temperature stability, low ESR, and small profile. It is excellent for use in high-frequency applications such as switching regulators, DC–DC converters, voltage regulators, and SMPS.

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