LAL04NA151K

DC Resistance (DCR):	4.2 Ohm Max
Height - Seated (Max):	--
Size / Dimension:	0.157" Dia x 0.386" L (4.00mm x 9.80mm)
Supplier Device Package:	Axial
Package / Case:	Axial
Mounting Type:	Through Hole
Inductance Frequency - Test:	796kHz
Operating Temperature:	-25°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	3.5MHz
Q @ Freq:	45 @ 796kHz
Series:	LA, L Type
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	175mA
Tolerance:	±10%
Inductance:	150µH
Material - Core:	--
Type:	--
Part Status:	Obsolete
Packaging:	Bulk

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Introduction The LAL04NA151K is an inductive component part that falls under the category of fixed inductors. An inductor stores energy in the form of a magnetic field generated by the current flowing through a wire coil wrapped around a ferromagnetic core. The inductor has two main characteristics, inductance and quality factor (Q-factor); the higher the inductance and quality factor, the better the performance of the component when exposed to external electromagnetic influences. The LAL04NA151K has a rated operating temperature of -55°C to +105°C and can handle a maximum peak current of 5.7 Amps. Application Field The LAL04NA151K is commonly used in high-frequency electronic circuits to filter out unwanted signals and reduce power consumption. It can also be utilized as a negative temperature coefficient (NTC) thermistor in order to protect components from damage due to excessive current. Examples of applications where this component is often deployed include telecommunications, industrial process controls, automotive electronic systems, and consumer electronics such as DVD players, mobile phones, and loudspeakers. Working Principle When electric current passes through the inductor, a magnetic field is produced, which induces an electromotive force (EMF) of opposite polarity in the winding. The magnitude of the EMF is proportional to the rate of change of the current, thusly; the greater the rate of change, the higher the EMF generated in the winding. The generated EMF opposes the change in current, which is known as inductive reactance. By distributing the current in proportions proportional to the changes, the inductor acts as an AC filter, blocking certain frequencies while allowing the others to pass. In addition, the quality factor (Q-factor) of the inductor is a key factor in its efficiency; a higher Q-factor indicates a more efficient inductor. The Q-factor of the LAL04NA151K is typically rated between 15 and 175, with a higher Q-factor allowing the inductor to act as a more efficient filter.Further, the rated inductance of the component relates to the current it can handle without becoming saturated. For the LAL04NA151K, the rated inductance is 1.51 Henries (H). When the voltage or current through the component reaches a certain point, it will generate a voltage drop – referred to as a “knee” – which is critically important to the design of circuits using the component. Conclusion The LAL04NA151K inductor is a fixed inductive component with a rated operating temperature of -55°C to +105°C and able to handle a maximum peak current of 5.7 Amps. It is used in a wide variety of applications, both for filtering and protection, as its inductance, quality factor, and current handling capability make it suitable for use in high-frequency electronic systems, telecommunications, industrial process controls, automotive applications, and consumer electronics. The inductor’s key characteristics - inductance, Q-factor, and current handling capability - along with its capability of frequency filtering and generating a knee, makes it a popular and highly effective component for such a wide range of devices.

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