LB3218T220K Inductors, Coils, Chokes

DC Resistance (DCR):	490 mOhm
Height - Seated (Max):	0.079" (2.00mm)
Size / Dimension:	0.126" L x 0.071" W (3.20mm x 1.80mm)
Supplier Device Package:	1207 (3218 Metric)
Package / Case:	1207 (3218 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	2.52MHz
Operating Temperature:	-40°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	19MHz
Q @ Freq:	--
Series:	LB
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	255mA
Tolerance:	±10%
Inductance:	22µH
Material - Core:	--
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Fixed inductors are passive electronic components consisting of a coil of wire that builds up a magnetic field when current is passed through it. They consist of a core (usually made of iron) wrapped in a coil of wire. The core is the material in which the magnetic field builds and the coil is responsible for generating the magnetic field. Fixed inductors are used to either filter out high frequencies or lower frequencies from an electrical signal, store energy for a short period of time, separate sensor circuits from other circuit components or to reduce electromagnetic interference.LB3218T220K is a type of fixed inductor, which is used in many commercial and industrial applications. It is a thin film-based inductor and is used for filtering, impedance matching, or voltage reduction. It is a two-leaded device, which has a wirewound core with a 22 μH rated inductance. The wirewound core is insulated with plastic molded over the coil. It has a robust construction suitable for use in high humidity and temperature environments, and high mechanical shock and vibrations. The design is sealed with epoxy resin, which provides protection from moisture and external contaminants in harsh conditions.The inductance of an LB3218T220K is established by the number of turns in the coil, the size of the core, the type of core used, and the thickness of the winding. The inductance range for this device is from 15.6 μH to 22 μH, with a tolerance of ±5%. The maximum dc current that can be passed through this device is 4A, while the inductance changes may be as high as 10% when an alternating current (AC) of 2A rms is passed through. The thermal resistance from the core to the leads, Rthj-l, is a low 0.48 °C/W.When LB3218T220K is used, it behaves as an electronic filter and its working principle is the same as that of a choke coil. When an ac voltage is applied, the reactance of the inductor opposes the change in the current flow. This means that the current will either be filtered or reduced in voltage depending on the frequency that is being sensed. At high frequencies, the reactance of the coil becomes so high that the current flow is blocked. This allows the LB3218T220K to filter out high frequency signals. When a lower frequency signal is applied, the reactance will not be as high, which reduces the voltage of the signal before it is sent to the next component. The applications of the LB3218T220K vary widely, as this device can be used for both filtering and power voltage reduction. It is used in consumer electronic devices such as TVs, radio receivers, sound amplifiers, and mobile phones. It is also used in the automotive industry for motion control systems, sensor systems, and engine management systems. Similarly, it is used in LED lighting systems, power supplies, robots, and other industrial systems. The wide range of applications of LB3218T220K makes it a versatile device for many commercial and industrial applications.

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