HM66A-0630470NLF13

DC Resistance (DCR):	229.5 mOhm Max
Height - Seated (Max):	0.118" (3.00mm)
Size / Dimension:	0.248" L x 0.244" W (6.30mm x 6.20mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 85°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	HM66A
Shielding:	Shielded
Current - Saturation:	--
Current Rating:	600mA
Tolerance:	±30%
Inductance:	47µH
Material - Core:	--
Type:	Wirewound
Part Status:	Discontinued at Digi-Key
Packaging:	Tape & Reel (TR)

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Introduction to Fixed Inductors

Inductors are one of the most commonly used basic electronic components. Fixed inductors, as their name suggests, are inductors with relatively fixed inductance and typically using non-adjustable coils. Fixed inductors are used in many applications, from traditional switching mode power supplies to AC/DC supplies, and are especially useful in switching and filtering applications.

Types of Fixed Inductors

Fixed inductors come in many shapes and sizes, from axial to radial. The most common type of fixed inductor is the cylindrical axial type with a molded body and an axially extending core and coil assembly. Radial types are similar but with the coil wound in the radius of the body, and they are used mainly in high-frequency applications.

HM66A-0630470NLF13 Fixed Inductor

The HM66A-0630470NLF13 is a radial type fixed inductor with a low DC resistance and a high inductance and rated current of 470uH and 0.6A respectively. The construction of the HM66A-0630470NLF13 is a one piece construction with a flat bottom for easy solder joint. Its features also make it ideal for SMPS applications.

HM66A-0630470NLF13 Application Field

The HM66A-0630470NLF13 is a widely used fixed inductor mainly for SMPS applications. It is also used for audio applications as filtering and tuning circuits, and high frequency switching power supplies. In addition, the HM66A-0630470NLF13 is also popular in communications, instrumentation and computer equipment.

HM66A-0630470NLF13 Working Principle

Fixed inductors work on the principle of electromagnetism in which electric current creates a magnetic field. The HM66A-0630470NLF13 is a radial type of fixed inductor which means its coil is wound around its body in a spiral fashion instead of axially. The core of the HM66A-0630470NLF13 is a ferrite material where the current is passing through which helps to provide the desired inductance of 470uH.When the current passes through the coil, it creates a changing magnetic field which in turn, induces an electromotive force, or EMF, in the coil in the opposite direction of the caused by the current. The amount of the EMF is proportional to the rate of the change of the current and this is called the inductance of the inductor.

Conclusion

The HM66A-0630470NLF13 radial type fixed inductor is an excellent choice for many audio, SMPS, and high-frequency applications due to its low DC resistance and high inductance. It works on the principle of electromagnetism in which electric current passing through the core creates a magnetic field and induces an electromotive force in the coil in the opposite direction of the caused by the current. The amount of the EMF is proportional to the rate of the change of the current and this is called the inductance of the inductor.

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