NR4012T150M Inductors, Coils, Chokes

DC Resistance (DCR):	480 mOhm Max
Height - Seated (Max):	0.047" (1.20mm)
Size / Dimension:	0.157" L x 0.157" W (4.00mm x 4.00mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-25°C ~ 120°C
Ratings:	--
Frequency - Self Resonant:	23MHz
Q @ Freq:	--
Series:	NR
Shielding:	Shielded
Current - Saturation:	560mA
Current Rating:	600mA
Tolerance:	±20%
Inductance:	15µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Fixed inductors, also known as non-adjustable inductors, are electronic components used in circuits that carry and convert electrical energy. They are composed of a coil of insulated wire wrapped around a core of metal, usually ferromagnetic, and covered with an insulating material such as ecoplast. Fixed inductors are adapted to carry current inside and outside of a circuit. In this article, the fixed inductor NR4012T150M will be analyzed, examining both its application fields and its working principle.

Application Field

The NR4012T150M is primarily used in power electronic circuits, such as those found in power converters or inverters. It is ideal for filtering high frequency signals and currents, for which its low inductance value (150 µH) and very small package size (2.5 mm x 2.3 mm) make it ideal. It can also be used to reduce power losses and improve efficiency. For example, it can be utilized in boost circuits, to prevent high frequencies from leaving the circuit, thus reducing power losses. The NR4012T150M is particularly suitable for applications in the automotive industry due to its high surge withstand voltage (280 V/μs) and its high insulation characteristics. It can be used in applications where high and intense current switching occurs, such as triggering, current sensing, and voltage clamping, among others.

Working Principle

Fixed inductors typically rely on the phenomenon of electromagnetic induction to produce inductance. This occurs when a current carrying conductor, such as the wire coil found in fixed inductors, establishes a magnetic field. As this magnetic field is generated, if it changes in intensity or direction, it induces an electromotive force on other conductive materials that are close to it. When current is passed through a fixed inductor, the wire coil establishes a rotating field. This field induces an electromotive force on the capacitor located in the center of the inductor, which then generates current in the opposite direction of the original current. This opposing current creates the inductance, which is measured in units of ohms. The NR4012T150M inductor is designed with a high surge withstand voltage (280 V/μs) and specializes in improved efficiency and reliability. Its small size makes it ideal for high frequency applications, such as in automotive inverters and converters.

Conclusion

The NR4012T150M fixed inductor is a versatile component with a wide range of applications, from traditional power electronic circuits to applications in the automotive industry. It is designed with a high surge withstand voltage, allowing it to be used in high frequency applications, and its small size makes it ideal for use in limited circuit space. Furthermore, it is well suited for use in reducing power losses and improving efficiency in power circuits, as well as for use in current triggering, current sensing, and voltage clamping applications.

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