HKQ04020N7C-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):	90 mOhm Max
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	470mA
Tolerance:	±0.2nH
Inductance:	0.7nH
Material - Core:	Ceramic
Type:	Multilayer
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Fixed inductors are a type of electronic component used to store energy electrically and magnetically. Also known as inductors, chokes, and coils, they are passive components connected in series with alternating current (AC) sources in an electrical or electronic circuit in order to regulate the flow of electrical current. Among the various types of fixed inductors, the HKQ04020N7C-E is a fixed radial leaded inductor with ferrite core, sealed in a metal shell. It is designed for reliable operation over a wide temperature range and is suitable for use in high-temperature applications.

Application Field

The HKQ04020N7C-E component has a wide range of applications, particularly in industrial and consumer electronics. This type of fixed inductor is often used as a noise filter to reduce high-frequency noise and provide an additional level of protection from external interference and overvoltage surges. It is also used as a memory backup device to retain information even when power is not available. Additionally, the inductor can benefit from its immunity to temperature changes and its high power efficiency.

Working Principle

Inductors use the principle of self-induction, where an electric current flowing through a coil of wire creates a magnetic field around the coil. This magnetic field exerts a self-induced voltage in the coil opposing the change in current. This can cause induced voltage, which can be either positive or negative, depending on the direction of the changing current. The core of the coil is usually made from a ferrite material, which helps to enhance the electromagnetic field around the coil, resulting in increased inductance. Thus, when a current is passed through the inductor, the magnetic field will increase in strength and oppose the current change, causing resistance. The HKQ04020N7C-E inductor provides effective protection from electromagnetic interference, enhances immunity to temperature and current changes, and provides increased power efficiency. Additionally, this component is designed to operate in environments between -20°C and 85°C, making it suitable for many industrial and consumer electronics applications.

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