SPD42R-472M Inductors, Coils, Chokes

Series:	SPD42R
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Wirewound
Material - Core:	Ferrite
Inductance:	4.7µH
Tolerance:	±20%
Current Rating:	900mA
Current - Saturation:	900mA
Shielding:	Shielded
DC Resistance (DCR):	45 mOhm Max
Q @ Freq:	--
Frequency - Self Resonant:	55MHz
Ratings:	--
Operating Temperature:	-55°C ~ 125°C
Inductance Frequency - Test:	100kHz
Mounting Type:	Surface Mount
Package / Case:	Nonstandard
Supplier Device Package:	--
Size / Dimension:	0.185" L x 0.185" W (4.70mm x 4.70mm)
Height - Seated (Max):	0.115" (2.92mm)

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Fixed Inductors

Inductors are one of the most important components in electrical and electronic circuits. They are used in all kinds of applications ranging from antenna and audio circuits to power source units and power converters. Fixed inductors have a wide variety of uses, including voltage spike suppression, potential dividers, charge pumps, and switching apps. The SPD42R-472M is a type of fixed inductor which is typically used for DC-DC power conversion and in other applications.

Construction and Design

The SPD42R-472M is a radial-leaded inductor which is designed to have low peak-to-peak variation over a range of current, temperature, and time. The inductor consists of a core material with a coil wrapped around it. The coil is made from an alloy of high-grade ferrite and ferromagnetic materials, and is wound tightly around the core material. The core material has precise magnetic characteristics which help to minimize the flux leakage, and also helps to increase the inductance value. The SPD42R-472M also has a non-magnetic epoxy coating which helps to protect the coil and core from moisture and environmental influences.

Working Principle

The working principle of the SPD42R-472M is based on the principle of electromagnetic induction. This principle states that when a current carrying wire is placed in a magnetic field, a voltage is induced in the wire. This induced voltage is proportional to the intensity of the magnetic field, and the rate of change of the current flowing through the wire. In the case of an inductor, electric current flowing through the coil creates a magnetic field around it. This magnetic field will induce a voltage in the coil which is proportional to the rate of change of the current in the coil. The voltage can be used to control the current in the circuit, and this in turn can be used to regulate the power output from the circuit.

Application Fields

The SPD42R-472M inductor is typically used for DC-DC power conversion. It can be used to convert lower voltage DC power sources, like batteries, into higher voltage outputs, like those needed to power larger devices. The inductor helps to regulate the power output from the circuit by controlling the current in the circuit. This helps to ensure that the proper amount of power is being delivered to the device.In addition to power conversion applications, the SPD42R-472M can also be used in other applications which require current regulation. This includes applications such as voltage spike suppression, voltage dividing, charge pumps, and switching apps.

Conclusion

The SPD42R-472M is a fixed inductor which is used for various purposes in electrical and electronic circuits. It is designed with a core material and a coil wrapped around it, and works on the principle of electromagnetic induction to control the current in the circuit. The SPD42R-472M is typically used for DC-DC power conversion, but can also be used in applications such as voltage spike suppression, voltage dividing, charge pumps, and switching apps.

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