S1812R-681H

DC Resistance (DCR):	440 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:	1812 (4532 Metric)
Package / Case:	1812 (4532 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	25MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	166MHz
Q @ Freq:	40 @ 25MHz
Series:	S1812R
Shielding:	Shielded
Current - Saturation:	--
Current Rating:	675mA
Tolerance:	±3%
Inductance:	680nH
Material - Core:	Iron
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Inductors, commonly known as coils or reactors, are electrical components that store energy in the form of magnetic fields, instead of producing it. Fixed inductors, or non-variable inductors, come in a wide variety of shapes and sizes for different uses. Fixed inductors are used to filter signals, boost the voltage of a given signal, or set an inductive load for circuit current. Among the variety of fixed inductors, the S1812R-681H is of particular interest.The S1812R-681H is a type of power inductor, characterized by a low losses, high current, and high saturation material. It has a ferrite core to provide increased operating frequency, a winding that allows for minimal power losses and increased reliability, and terminals that are designed for secure, firm connections. The inductance value of this particular inductor is 6.8 uH and its DC resistance is 0.16 ohms.The S1812R-681H is suitable for a variety of applications, including ambient and temperature compensated DC/DC converters, portable and offline audio amplifiers, and normal DC/DC applications. This part is typically used in frequency converters, DC/DC converters, switching power supplies, and as an inductive component for a circuit. As indicated by its specifications, it is equally suitable for high current applications.In general, power inductors stabilize voltage in circuits by providing a stable supply of power, filter out certain frequencies of signals, or provide an inductive load to circuit current. When a current is passed through an inductor, a proportional magnetic field is created around the winding. This magnetic field resists any change in the current and provides a separate path for the induced current to flow in, called the counter-electromotive force. This force maintains a stable voltage in the circuit, even when the currents fluctuate.The S1812R-681H is a great example of an efficient, high performance fixed inductor. This part has a long life expectancy and is ideal for applications that require high current. It has a wide variety of applications and, due to its high saturation material, is suitable for a multitude of frequency converters. It is a reliable part that is excellent at filtering signals, boosting the voltage of a given signal, or providing an inductive load for circuit current.

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