ER1840-38JR

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Fixed inductors, also known as inductors, are passive two-terminal electrical components used to store energy in the form of magnetic field. ER1840-38JR is a low profile, surface mount single-ended radial lead wound inductor owned by Arcol. It offers a stable inductance over a wide frequency range as well as a low DCR and high Q factor. Featuring an operating temperature range of -55°C to +125°C, this fixed inductor is ideal for use in power circuit designs. It has a rated current of 0.28A and is suitable for either MELF (Metal Electrode Leadless Face) format or straight leaded solder terminals.

The ER1840-38JR\'s application fields are many. It is used in numerous automotive, consumer and industrial electronics, as well as lighting, power supply, medical and robotic applications. With a low series resistance, this component limits the power lost in series operation, making it a good choice for power applications. Furthermore, the inductor\'s radial leads are also suitable for reflow soldering. It is also used in pulse charging circuits in radio and communication industries.

The working principle of ER1840-38JR is simple. It behaves like a coil when a current flows through it. The magnetic field produced by the current creates an opposing force, called inductance, which opposes the current. The inductance is proportional to the number of turns of the coil, the current, and the permeability of the magnetic core. The figure of merit or quality factor for the inductor is related to the inductance and the series resistance of the inductor. As the current flows through the inductor, the voltage drop across it (equal to the rated current multiplied by the series resistance) causes the current to decrease, eventually reaching zero.

The ER1840-38JR has excellent nonlinear characteristics and is compatible with most high frequency applications. The inductor also offers temperature compensation to ensure stability over a wide temperature range. The inductor also features an undercut mounting structure that ensures secure mounting and reduces the possibility of board warping.

In summary, the ER1840-38JR is a low profile, surface mount single-ended radial lead wound inductor owned by Arcol with a low series resistance, suitable for either MELF (Metal Electrode Leadless Face) format or straight leaded solder terminals. Its wide range of applications include automotive, consumer and industrial electronics, lighting, power supply, medical and robotic applications. It works on the principle of inductance, where the current creates an opposing force, called inductance, which opposes the current. The inductor also offers temperature compensation to ensure stability over a wide temperature range. It is overall an excellent choice for many power circuit designs.

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