LAL02VA390K

DC Resistance (DCR):	5.2 Ohm Max
Height - Seated (Max):	--
Size / Dimension:	0.091" Dia x 0.134" L (2.30mm x 3.40mm)
Supplier Device Package:	Axial
Package / Case:	Axial
Mounting Type:	Through Hole
Inductance Frequency - Test:	2.52MHz
Operating Temperature:	-25°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	13MHz
Q @ Freq:	40 @ 2.52MHz
Series:	LA, L Type
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	74mA
Tolerance:	±10%
Inductance:	39µH
Material - Core:	--
Type:	--
Part Status:	Obsolete
Packaging:	Tray

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Introduction
Fixed inductors, also known as the inductance coils, are a type of passive electronic component which stores electrical energy in the form of magnetic field. Fixed inductors act as inductors or transformers, depending on its application. One such example is the LAL02VA390K – a high precision fixed inductor used for current sense applications.

Construction and Features
The LAL02VA390K is an axial leaded surface mount chip type fixed inductor, with drop-in mounting. It has an inductance value of 390nH and a rated current of 1.2A. The LAL02VA390K has operating temperature range of -40°C to +85°C, with a maximum dc resistance of 0.019 Ohm at 25°C and a saturation current of 2.6A at 20°C. Its rated voltage is 6V. The inductor comes with RoHS and REACH compliance certification.

Application of LAL02VA39K
The LAL02VA390K is most commonly used for current sense applications, providing an optimal combination of high current ratings and low DC resistance, making it ideal for high power applications. The 390nH inductance value provides a low frequency noise rejection, and the extended frequency response provides higher efficiency and less distortion of electrical signals in such applications. The device is also suitable for use in SMPS (switched-mode power supply) and in DC-DC converters.

Working principle of LAL02VA39K
The working principle of the LAL02VA390K is fairly simple, as it acts in the same way as a standard inductor. When a current flows through it, a magnetic field is created. This magnetic field is proportional to the current and contained within its core. When the current drops, the magnetic field collapses and generates a voltage of the opposite polarity at the terminals of the inductor. Thus, the inductor can act as a transformer, converting current to voltage or vice versa, depending upon its application.

Conclusion
The LAL02VA390K fixed inductor is an ideal solution for current sensing applications, providing both high current ratings and low DC resistance in a single chip. It is also suitable for use in SMPS and in DC-DC converters. The device features an operating temperature range of -40°C to +85°C, a maximum dc resistance of 0.019 Ohm at 25°C, and a saturation current of 2.6A at 20°C. With its high precision, wide operating range and low power losses, the LAL02VA390K is an ideal solution for many current sense applications.

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