IMC1812ES391J

DC Resistance (DCR):	16 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:	3MHz
Q @ Freq:	40 @ 790kHz
Series:	IMC-1812
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	80mA
Tolerance:	±5%
Inductance:	390µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IMC1812ES391J belongs to fixed inductors, which have wide application fields. This article will discuss in what fields IMC1812ES391J can be applied as well as its working principle.IMC1812ES391J is a molded inductor with a wide variety of application fields. It is an ideal choice for commercial and industrial applications such as switch-mode power supplies, automotive circuits, motor control circuits, chargers, power converters, servo, and inverters. It also can be used in threshold power generators, peak sensors, open loop circuits, flybacks, and LED lighting applications. With its quick response time, it has the ability to respond to sudden load changes and maintain efficient performance.In terms of its working principle, IMC1812ES391J is a self-contained and polarized fixed inductor. It consists of a central core wrapped in an iron/ferrite material. On the iron/ferrite core is a wire coil which is wound around the core with varying pitch, direction, and spacing. This coil creates an electromagnetic field which, when energized, allows for current to be induced in the wire winding. In order to generate a magnetic field, the energy is provided by an external electric source. The electric current supplied by the source flows through the wire winding and creates a magnetic field in the core. The magnetic field generated by this current interacts with the core and induces a voltage in the conductors which is proportional to the rate of change of the magnetic flux. The combination of the core and winding creates a resonant circuit which is used to control the magnitude of the inductance. When the desired value of inductance is achieved, the external electric source is removed and the coil acts as a fixed inductor. This process results in the reduction of heat generation, thus making the inductor more efficient.In summary, the IMC1812ES391J is a fixed-type inductor with a wide variety of application fields. It is mainly used in switch-mode power supplies, automotive circuits, motor control circuits, chargers, power converters, servos, and inverters. It also can be used in threshold power generators, peak sensors, open loop circuits, flybacks, and LED lighting applications. Its working principle is based on an electromagnetically-generated magnetic field, which helps it to maintain efficient performance.

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