DC Resistance (DCR):	1.5 Ohm Max
Height - Seated (Max):	0.024" (0.60mm)
Size / Dimension:	0.039" L x 0.024" W (1.00mm x 0.60mm)
Supplier Device Package:	1006 (0402)
Package / Case:	0402 (1006 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	1.4GHz
Q @ Freq:	20 @ 250MHz
Series:	MHQ-P
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	190mA
Tolerance:	±2%
Inductance:	39nH
Material - Core:	Ceramic, Non-Magnetic
Type:	Multilayer
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to Fixed Inductors

Fixed inductors, also known as non-variable inductors, are components used to store or conduct electrical energy in a circuit. They are made of wire, metal or a combination of both, and they come in a variety of shapes and sizes. In general, inductors are used in electronics as part of a circuit for signal processing, voltage regulation, and power conversion. Common applications include radio frequency (RF) circuits, power supplies, pulse circuits, and high voltage AC circuits.

MHQ1005P39NGT000

The MHQ1005P39NGT000 fixed inductor is the newest addition to the Panasonic family of inductors. It is a chip-style surface mount inductor designed for high reliability. It has a tiny 1.0mm X 1.0mm footprint and is able to fit neatly into tight spaces, making it an ideal choice for space-constrained applications. The inductor has a maximum DC current of 39 Amps and can handle up to 39 volts of DC power. The inductor has a ceramic core material and is RoHS compliant.

Application Field and Working Principle

The MHQ1005P39NGT000 inductor is primarily used in power supply and DC/DC converter applications. It is designed to store energy in the form of an electro-magnetic field and reduce power line noise in high-power systems such as DC-DC converters. In a power conversion circuit, the inductor is used to maintain the voltage level and control the current. During the charging up phase, the inductor acts as a current source, allowing the current to flow. During the discharging phase, the inductor acts as a load resistor, limiting the current flow.The working principle of an inductor is based on Faraday’s law of induction, which states that when a conductor is exposed to a changing magnetic field, it will induce an electromotive force (EMF) across the conductor. This EMF, expressed in volts, is equal to the rate of change of the magnetic flux linking the conductor. This EMF is responsible for the energy stored in the inductor. As the current in the inductor increases, the value of the magnetic flux linking the inductor also increases, resulting in an increase in the induced EMF. This induced EMF opposes the applied EMF and hence limits the current flowing through the circuit. This is known as inductance.

Conclusion

The MHQ1005P39NGT000 fixed inductor is an ideal choice for space-constrained applications in power supply and DC/DC converter applications. The chip-style surface mount design makes it suitable for high-reliability applications. It operates on the principle of Faraday’s law of induction, in which the induced electromotive force (EMF) opposes the applied EMF and limits the current flow. This makes the inductor an ideal part for controlling current in power conversion circuits.

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