IMC1812ES121J

DC Resistance (DCR):	8 Ohm Max
Height - Seated (Max):	0.134" (3.40mm)
Size / Dimension:	0.177" L x 0.126" W (4.50mm x 3.20mm)
Supplier Device Package:	1812
Package / Case:	1812 (4532 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	790kHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	6MHz
Q @ Freq:	40 @ 790kHz
Series:	IMC-1812
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	110mA
Tolerance:	±5%
Inductance:	120µH
Material - Core:	Iron Powder
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Fixed inductors are the most essential components of a wide range of electronic circuits. These are electrical components that contain an inductor, usually in the form of a coil. The property of an inductor is that when a current passes through it, it generates a magnetic field. In addition, when this magnetic field changes, it produces an induced current inside the inductor. This induced current is called back-emf.The IMC1812ES121J is a fixed inductor with extensive applications. It has a winding around a magnetic core, with a rated current of up to 14A, and an inductance in the range 11.5-12.0uH. It also features an excellent low profile, measuring only 14.1 mm x 8.8 mm x 4.5 mm. Its operating temperature range is -55°C to +85°C.The main application of the IMC1812ES121J is as a power inductor in switch mode power supplies (SMPS). SMPS are power conversion systems which use electronic switches to quickly switch the voltage or current being supplied to the system, converting an input power source into a desired output, usually at a higher power. This is essential for a wide range of devices, from laptop computers to microwave ovens. The IMC1812ES121J is used as part of the SMPS to control the current flowing to the load.The IMC1812ES121J typically performs two distinct functions within an SMPS circuit. The first is to limit the current supplied to a circuit, usually by sensing when the voltage exceeds a certain threshold and cutting off the current flow. This helps prevent damage to the electronics due to excessive current. The second function is to store energy in the form of a magnetic field, and release it quickly when the switch is turned off. This helps maintain a steady supply of current to the load, despite the rapid switching of the electronic switches.When the switch is on, the coil of the inductor builds up a magnetic field as current flows through it. When the switch is off, the magnetic field collapses, creating an induced current, or back-emf. This back-emf maintains a flow of current to the load, until the next pulse of the switch is received. The size of the inductor determines the speed with which it is able to store and release energy.The IMC1812ES121J is ideal for use in low power SMPS, due to its low profile and wide operating temperature range. Its rated current of up to 14A, and inductance range between 11.5 and 12.0uH, make it well suited for a wide range of power conversion applications. Thanks to its ability to store and release energy, this inductor is able to maintain a steady supply of current to the load, even at high speeds. In addition, its low profile design makes it well suited for applications where space is limited.

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