ELJ-QE2N2DFA Inductors, Coils, Chokes

Series:	QE
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Multilayer
Material - Core:	Ceramic
Inductance:	2.2nH
Tolerance:	±0.3nH
Current Rating:	970mA
Current - Saturation:	--
Shielding:	Unshielded
DC Resistance (DCR):	40 mOhm Max
Q @ Freq:	15 @ 100MHz
Frequency - Self Resonant:	6GHz
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Inductance Frequency - Test:	100MHz
Mounting Type:	Surface Mount
Package / Case:	0603 (1608 Metric)
Supplier Device Package:	0603 (1608 Metric)
Size / Dimension:	0.063" L x 0.031" W (1.60mm x 0.80mm)
Height - Seated (Max):	0.032" (0.80mm)

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Introduction

Fixed inductors are electrical components that have been designed to sustain their electrical properties when exposed to a wide variety of environments. They have many applications, ranging from power supplies to high frequency operation. One type of fixed inductor is ELJ-QE2N2DFA, which is an electrically low profile, high voltage, low profile spade type inductors, mainly used in DC-DC converters and power supplies.

Application Fields

ELJ-QE2N2DFA has a wide range of applications, such as: 1. Switching power supply circuits: ELJ-QE2N2DFA used in switching power supply circuits provides high quality and reliable power conversion. It has the capability of providing high-efficiency, high frequency operation and can be widely used in AC/DC or DC/DC converters.2. High voltage operation: ELJ-QE2N2DFA inductors are advantageous over other fixed inductors since they are designed to have high voltage operation with low profile, making them suitable for applications in circuits that operate at high voltages.3. High frequency operation: ELJ-QE2N2DFA provides a wide range of frequency operation up to 3MHz. Therefore, it is suitable for use in high-frequency operations, such as radio frequency (RF) communications, wireless networks, etc.4. Radiation protection: ELJ-QE2N2DFA is designed to provide a shield against electromagnetic radiation. It is used in applications where the electromagnetic radiation must be blocked or attenuated in order to prevent interference with other electronic systems.

Working Principle

ELJ-QE2N2DFA works on the principle of storing energy in the form of electromagnetic fields. The stored energy is released when a current is passed through the device and creates an opposing EMF. This is what is known as induced voltage or inductance. The basic building block of ELJ-QE2N2DFA is an iron core inductor. The inductor consists of a winding of copper wire wound around an iron core. As electric current passes through the inductor, it produces a magnetic field that is proportional to the amount of current. The small voltage drop across the inductor due to EMF is called inductance. The EMF can be calculated by the formula V = 2πfL, where V is voltage, f is frequency and L is inductance. When the current decreases, the induced voltage drops, thereby decreasing the amount of energy produced. The inductance of ELJ-QE2N2DFA is easily adjustable by external capacitors allowing the user to select different frequencies as per their requirements. Moreover, the inductance also increases with an increase in frequency of current passing through the device.

Conclusion

In conclusion, ELJ-QE2N2DFA is a type of fixed inductor that is highly efficient and reliable. Its low profile, high voltage and high frequency operation make it suitable for a wide variety of applications, ranging from various switching power supply circuits, high voltage operation, and radiation protection. The principle of operation is based on the concept of storing energy in the form of magnetic fields. This energy is released when a current is passed through the device and creates an opposing EMF which is known as inductance. The inductance of ELJ-QE2N2DFA is adjustable by external capacitors thus providing the desired frequency as per the user requirements.

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