74477125 Inductors, Coils, Chokes

DC Resistance (DCR):	860 mOhm Max
Height - Seated (Max):	0.236" (6.00mm)
Size / Dimension:	0.472" L x 0.472" W (12.00mm x 12.00mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	1kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	2.5MHz
Q @ Freq:	--
Series:	WE-PD
Shielding:	Shielded
Current - Saturation:	700mA
Current Rating:	620mA
Tolerance:	±20%
Inductance:	560µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Fixed inductors, also known as inductors, are widely used in engineering and household electrical appliances. Their core function is to store and release electrical energy. 74477125 is one type of fixed inductors. This article aims to introduce the application field and working principle of 74477125.

Applications

74477125 are commonly used in radio transmission and amplifier circuits. In such cases, it is used as an chokes, with the core ability being to filter out alternating current and protect other components from being mixed with these. 74477s are also employed in monitoring units and in the manufacturing of power supplies that require low voltage output. When it comes to electronic filters, 74477125 can be used to separate a peak voltage with different magnitude. Such inductors are typically utilized in low-power and complex circuits, which are needed for measurement, monitoring, and troubleshooting. 74477125 are often used in radiating systems, such as car audio systems. In particular, it serves as the frequency determining element in such systems. Moreover, this type of inductors is used in the automatic voltage regulator for the production of low-current and high precision output voltage.

Working Principle

74477125 acts like an electrical transformer, in which signal power is passed from an input winding to an output winding. In an ideal situation, the input voltage is identical to the output voltage. But due to the contained inductance, the effect of input will be slowed down in the output winding in an exponentially decaying fashion. Thus, the output voltage will be lower than the input voltage, as the input current has been filtered out. The working of 74477125 is based on “ inductance ”. Through the principle of induction, the amount of current delivered in the primary winding of the inductor is proportional to the rate of change of current in the secondary winding. This means that if the voltage applied to the primary winding is increased, the inductor will induce more power to the output winding and the output will increase accordingly. On the contrary, if the voltage is decreased, the output will decrease conversely. Thus, the 74477125 will act as a tunable voltage regulator that enables precise control of the output voltage.

Conclusion

To summarize, 74477125 is a type of fixed inductor that is widely used in various applications, mostly in controlling power output. Through the principle of induction, it serves as an important component in monitoring systems, automatic voltage regulating devices, and other complex circuits.

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