AIUR-04-472J

Series:	AIUR-04
Packaging:	Bulk
Part Status:	Active
Type:	Wirewound
Material - Core:	Ferrite
Inductance:	4.7mH
Tolerance:	±5%
Current Rating:	50mA
Current - Saturation:	50mA
Shielding:	Unshielded
DC Resistance (DCR):	18 Ohm Max
Q @ Freq:	40 @ 252kHz
Frequency - Self Resonant:	600kHz
Ratings:	--
Operating Temperature:	-25°C ~ 85°C
Inductance Frequency - Test:	252kHz
Mounting Type:	Through Hole
Package / Case:	Radial
Supplier Device Package:	--
Size / Dimension:	0.335" Dia (8.50mm)
Height - Seated (Max):	0.441" (11.20mm)

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Introduction
The AIUR-04-472J is a fixed inductor developed by a semiconductor company in Japan. It is widely used in electronic circuit designs and power supply systems. It is designed to provide significantly high stability and reliability, and is suitable for all kinds of circuit designs. The AIUR-04-472J has been widely accepted by users, and with its superior performance, it has become a popular choice for both repairs and new designs.

Working Principle
The AIUR-04-472J is an air-core inductor, meaning that there is no material inside the response inductor. This means that the magnetic field which forms around the inductor is due to the current alone. Thus, the inductance of the inductor is determined by the core material and geometry. The winding of the inductor is made up of insulated wires which further refine the inductor’s magnetic field.

The magnetic field around the inductor is made up of two components: a static component and a dynamic component. The static component is formed when current passes through the inductor. The static component remains constant and does not change with frequency. The dynamic component is formed when current varies with frequency. This variation produces an additional EMF in the inductor. The core material and geometry of the inductor cause the frequency response of the inductor to vary.

Application Field
Since the inductance of the AIUR-04-472J is known to remain constant with frequency, it is a popular choice for circuit designs in which low noise is desired. Additionally, because its static component is constant, it is often used as an anti-aliasing filter for circuit frequencies greater than 200kHz. Another popular application of the AIUR-04-472J is in power supplies where a constant current source is required. Its stable response makes it suitable for supplying steady DC power for many applications. In addition, it is also used for RF signal applications, as its fixed inductor inductance paired with its frequency response make it ideal for attenuating and controlling signal characteristics.

Conclusion
The AIUR-04-472J is a popular choice for many different types of circuit designs and applications. Its constant inductance and frequency response make it a preferred choice for circuit designs which require a steady current or low noise. Additionally, its RF signal application characteristics make it a great choice for attenuating signals for broadcast and communication applications. With its reliability and stability, it has become a preferred choice for repairs and redesigns in the electronics industry.

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