S1812-393G

DC Resistance (DCR):	3.2 Ohm 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:	2.5MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	11MHz
Q @ Freq:	50 @ 2.5MHz
Series:	S1812
Shielding:	Shielded
Current - Saturation:	--
Current Rating:	250mA
Tolerance:	±2%
Inductance:	39µH
Material - Core:	Ferrite
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed inductors encompass a broad range of electronic components that offer a wide range of inductance and power values. The S1812-393G is the latest in a series of fixed inductors from ROHM Semiconductor that offer both low inductance and high current capability. This makes it ideal for applications in the automotive, consumer electronics, as well as communications and industrial markets.The S1812-393G consists of two individual coils made of a ferrite core encapsulated with a metal shield for additional protection. This two‑coil design helps the inductor to achieve higher inductance values with a relatively small size, making it ideal for applications with limited space constraints. It also offers low resistance at high frequencies and low noise operation, making it suitable for applications that require minimal system noise.The S1812-393G has a rated inductance of 15μH and a maximum current rating of 0.6A. It is coated with an epoxy resin to protect against environmental contaminants. The inductor has a low profile of 2.5mm and is a component part of the new ‘Modular Power Solution’ from ROHM Semiconductor. It is ideal for use in automotive, consumer and industrial applications that demand low system noise and maximum current delivery.The working principle of the S1812-393G is based on the concept of induction. This occurs when a changing current in a conductor induces a current in a nearby conductor. This is because a changing current in a conductor creates an oscillating magnetic field, which in turn induces a changing magnetic field in a nearby conductor. This induces a current in it. The amount of current induced is proportional to the number of turns in the coil and the speed of change of the current.When a voltage is applied to the S1812-393G\'s coils, the current passes through the first coil and induces a current in the second coil. This current creates a magnetic field, which in turn induces a voltage in the first coil. This current flowing through the inductor is known as inductive reactance. The inductive reactance is proportional to the number of coil turns and frequency of current flow and can help to reduce or limit the amount of "noise" present on the system.In summary, the S1812-393G is an ideal fixed inductor for use in automotive, consumer electronics, communications and industrial applications. Its low inductance and high current capability makes it suitable for applications with limited space constraints. The inductor has a low profile of 2.5mm and is protected by a metal shield for additional protection. It also offers low resistance at high frequencies and low noise operation, making it suitable for applications that require minimal system noise.

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