SP1812-392G

DC Resistance (DCR):	200 mOhm Max
Height - Seated (Max):	0.134" (3.40mm)
Size / Dimension:	0.189" L x 0.134" W (4.80mm x 3.40mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	1kHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	SP1812
Shielding:	Shielded
Current - Saturation:	1A
Current Rating:	1A
Tolerance:	±2%
Inductance:	3.9µH
Material - Core:	Ferrite
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors are components used to store energy, allowing higher current levels while providing an inductance resistance. SP1812-392G is an example of a fixed inductor and is typically used in applications such as power supply filtering, audio equipment, and dc/dc converter input filters. The SP1812-392G, being an inductor, is composed of a coil of wire wrapped around a core material. This inductor has a ferrite core material, as well as a +20% tolerance, and works within a frequency range of 10kHz to 150kHz. With a peak current rating of 2.3A, the SP1812-392G is capable of supplying an impressive level of current with minimal resistance.The SP1812-392G’s working principle involves the concept of magnetic fields. Whenever a current passes through the coil, it will induce a magnetic field around it. The ferrite core in which the coil is wrapped amplifies and intensifies this magnetic field, allowing the inductor to store more energy than what ordinarily would happen in air alone. This stored energy is then returned to the circuit as a back EMF (electromotive force) whenever the circuit\'s current drops. Because of this, the inductor is able to smooth out the current, and keep it steady over extended periods of time.The SP1812-392G’s application fields are varied and broad. In power supply designs, the device is a commonplace component, and can be found in a variety of electronic products such as charging ports, computers, and sound systems. It can be used to regulate the current passing through the power supply, and as a low-pass filter, helping to keep unwanted noise and interference out of the circuit. Meanwhile, in audio equipment, the inductor can be used as coupling elements, which help to pass along the audio signals.DC/DC Converter input filters are also a major application field for the SP1812-392G. In this type of setup, multiple inductors are used in tandem with a capacitor to act as an LC Low-Pass Filter. This type of filter helps eliminate noise and vibrations from entering the converter, and improves the overall performance of the device.In conclusion, the SP1812-392G is a reliable inductor capable of providing high peak currents while maintaining a low resistance. Its versatile application fields make it ideal for a wide variety of electronic devices and systems, from sound systems to DC/DC converters. Its working principle makes it possible for it to store energy, allowing it to regulate and stabilize current levels, making it an essential component in modern electronics.

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