HKQ04021N4C-E

Q @ Freq:	8 @ 500MHz
Height - Seated (Max):	0.009" (0.22mm)
Size / Dimension:	0.016" L x 0.008" W (0.40mm x 0.20mm)
Supplier Device Package:	01005 (0402 Metric)
Package / Case:	01005 (0402 Metric)
Mounting Type:	Surface Mount
Features:	--
Inductance Frequency - Test:	500MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	10GHz
Series:	HK, Q Type
DC Resistance (DCR):	170 mOhm Max
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	340mA
Tolerance:	±0.2nH
Inductance:	1.4nH
Material - Core:	Ceramic
Type:	Multilayer
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction to Fixed Inductors

An inductor is an electronic device that consists of a coil of wire and a core made of a magnetic material. This combination creates an electromagnetic field, causing the inductor to store electrical energy and behave as an inductance. Fixed inductors come in a variety of sizes and shapes to meet specific application needs and are commonly used to filter, couple, and bypass electronic signals.The HKQ04021N4C-E is a surface mount fixed inductor, designed to provide high power inductance in limited space. It is suitable for use in a wide range of electronics applications, particularly in consumer, automotive, and industrial electronics.

HKQ04021N4C-E Applications and Working Principle

The HKQ04021N4C-E is designed for power applications such as motor drives, motor controllers, high power switching systems, and other high power applications. Its feature set includes high inductance over a wide range of operating temperatures, high current capability, low AC resistance, and a wide temperature range.The HKQ04021N4C-E achieves its performance through its unique construction that combines a toroidal core with a rectangular winding pattern. This construction allows the inductor to store more energy and provide higher inductance values than traditional inductors with a single winding. The inductor also features a shield structure which provides better isolation between the winding and the inductor\'s core for more efficient operation.The working principle of the HKQ04021N4C-E is simple. When a current flows through the inductor, it creates an electromagnetic field around it. This field induces an EMF of its own in the adjacent wire turns, causing the inductor to store energy. This stored energy is then released when the current flow through the inductor is reduced or stopped. The amount of energy that can be stored depends on the inductance value of the inductor, which is a measurement of the rate at which current changes in the circuit.

Conclusion

The HKQ04021N4C-E is a high power surface mount fixed inductor with a wide range of applications. Its unique construction combines a toroidal core with a rectangular winding pattern to maximize inductance over a wide range of temperatures, while its shield structure enhances isolation between windings and core for better efficiency. The inductor\'s working principle is based on the ability to store energy due to the induced electromagnetic field.

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