MIL1812-333J

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Fixed inductors, or choke coils, are a type of electrical component that are used to store and release energy in electric and electronic circuits. Their main purpose is to reduce the current flow in certain sections of a circuit, or to smooth out ripple voltages generated by rectifying circuits. The MIL1812-333J is one of the most popularly used fixed inductors.

The MIL1812-333J inductor is a 1210-sized, SMT surface mount, lead-free component. It has an inductance range of 2.5 to 33 nH and a rated current of 1.6 A. The core is made of a ferrite material and the winding is encased in a resin sleeve. The body of the component also has copper pads to help dissipate heat.

In terms of application field, the MIL1812-333J is primarily used as a power inductor for DC-DC converters, DCM flyback converters, and switch-mode power supplies. It is also used in the filtering circuits of consumer electronics such as mobile phones, laptops, MP3 players, and tablets. While it is mainly used in power supply and electronic circuitry, it can also be used in RF circuits for designing antennas.

The working principle of a fixed inductor is based on the same principle as that of a transformer. Current flowing through the inductor forms an electromagnetic field around it, and this field produces a voltage that opposes the applied current. This is known as the inductance effect or inductive reactance. This inductive reactance reduces the current flow in the circuit and, therefore, helps in regulating the voltage in the circuit.

The MIL1812-333J has a wide range of features that make it suitable for applications in power supplies and electronic circuitry. These features include a low DC resistance, a high self-resonance frequency, and high surge current capabilities. It also has a high current rating of 150A and can withstand temperatures up to 150°C. The component also has an optimized design which helps in reducing electromagnetic interference (EMI) and its overall size makes it suitable for use in space-constraint applications.

The MIL1812-333J is a high-reliability, lead-free, surface mount fixed inductor that is suitable for use in power supply and electronic circuitry. Its wide range of features makes it highly suitable for different types of applications. Its optimized design makes it ideal for use in space-constraint applications while its high self-resonance frequency and surge current capability make it a reliable component for use in demanding applications.

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