RLB0812-472KL

DC Resistance (DCR):	16 Ohm Max
Height - Seated (Max):	0.433" (11.00mm)
Size / Dimension:	0.264" Dia (6.70mm)
Supplier Device Package:	--
Package / Case:	Radial
Mounting Type:	Through Hole
Inductance Frequency - Test:	252kHz
Operating Temperature:	-40°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	500kHz
Q @ Freq:	60 @ 252kHz
Series:	RLB
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	50mA
Tolerance:	±10%
Inductance:	4.7mH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Bulk

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Introduction

Fixed inductors, or chokes, are components used in a variety of electronic circuits and are the most common type of inductor. They are used to increase the current or voltage in a circuit, reduce radio frequency interference, and serve as filters to allow only certain frequencies to pass through the circuit. The RLB0812-472KL is one such type of fixed inductor.

Application Field

The RLB0812-472KL is a fixed inductor used to build inductors for applications such as cellular base station, LCD TV and digital television. This type of inductor is also commonly found in switch mode power supplies (SMPS), DC-DC converters, electronic ballast for lighting, and radio frequency radios.

Features and Benefits

The RLB0812-472KL offers several features and benefits that make it an attractive option for many applications. It is a small fixed inductor with a size of only 8mmx12mm and a low DCR of 0.47 ohms. This makes it an ideal choice for applications that require a small size component with minimal losses. The RLB0812-472KL also has a low temperature coefficient of 0.3% per degree Celsius and a high Q factor of 57. This means that it is able to maintain high performance levels over a wide range of temperatures and frequencies. The device is also RoHS compliant and has a high energy rating of 2250 joules, making it suitable for high energy applications.

Working Principle

The working principle of the RLB0812-472KL is based on the concept of electromagnetic induction. When a conductor moves through a magnetic field, a voltage is induced in the conductor. This voltage is proportional to the rate of change of the magnetic flux. In an inductor, a coil of wire is connected in such a way that when a current flows through the coil, a magnetic field is generated. This magnetic field induces a voltage in the coil itself, creating a self-induced voltage opposing the current. This opposition to current is known as inductive reactance and is the basis of an inductor\'s function.

Conclusion

The RLB0812-472KL is a fixed inductor that is suitable for a wide range of applications. Its small size, high Q factor, low temperature coefficient, and RoHS compliance make it an ideal choice for many electronic circuits. Its working principle is based on the concept of electromagnetic induction, whereby a voltage is induced in a conductor when it moves through a magnetic field. The device is capable of providing high levels of performance over a wide range of temperatures and frequencies.

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