9406-38

Q @ Freq:	53 @ 790kHz
Frequency - Self Resonant:	4.5MHz
Ratings:	--
Operating Temperature:	-55°C ~ 125°C
Inductance Frequency - Test:	790kHz
Mounting Type:	Through Hole
Package / Case:	Radial - 4 Leads
Supplier Device Package:	--
Size / Dimension:	0.500" L x 0.375" W (12.70mm x 9.53mm)
Height - Seated (Max):	0.375" (9.53mm)
Series:	9406
Packaging:	Bulk
Part Status:	Active
Type:	--
Material - Core:	Ferrite
Inductance:	150µH
Tolerance:	±10%
Current Rating:	153mA
Current - Saturation:	--
Shielding:	Shielded
DC Resistance (DCR):	9.2 Ohm Max

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Introduction to 9406-38 Fixed Inductors Fixed inductors, commonly known as coils, are electronic components that use electromagnetic induction to store energy in the form of an electrical current. They are often used in the transmission of radio frequency (RF) power, and in the design of filters, transformers, and impedance matching networks. The 9406-38 is an example of a fixed inductor, and this article will provide an overview of its application field and working principle.Types of Fixed InductorsFixed inductors come in a variety of shapes and sizes, and can be fabricated from a variety of materials. Amongst the most commonly encountered types of fixed inductors are toroid coils, air core coils, and ferrite core coils. Toroid coils consist of a loop of wire wound around a toroidal shaped core made of a magnetic material such as iron or ferrite. These coils are well-suited for high frequency applications as they have low inductance variations with frequency. Air core coils are wound around a core made of air, which provides minimal capacitance between the individual loops of wire. They are used in applications where noise immunity and high frequency performance are important, such as in RF circuits and in power supply filters. Finally, ferrite core coils have a core made of a material known as ferrite, which is a combination of ceramic and metal oxide materials. These coils are highly effective in DC applications such as filters and low impedance matching networks.Features of the 9406-38 Fixed InductorThe 9406-38 is a surface mount fixed inductor manufactured by Allegro MicroSystems. It is designed for use in applications such as power supplies, DC-DC converters, and RF circuits. This coil is characterised by its small size and low audible noise. The 9406-38 has a number of features that make it particularly suitable for use in power supply applications. These include a high frequency range (50 MHz to 350 MHz), low DCR (maximum 28 milliohms) and a low self-resonant frequency (SRF) (minimum 0.8 GHz). As this coil is a surface mount component, it is designed to be soldered directly onto the board. In addition, it is RoHS compliant, making it a popular choice in applications where environmental concerns are important. Application Field of the 9406-38 Fixed InductorAs a high quality and RoHS compliant surface mount fixed inductor, the 9406-38 is suitable for use in a wide range of applications. The principal application field for this component is in the design of power supplies, DC-DC converters, and RF circuits.In power supply applications, the 9406-38 can be used to effectively filter out harmonics and RF noise. Its low DCR and SRF characteristics make it well suited for use in high frequency resonant converter designs. The 9406-38 is also suitable for use in DC-DC converters, where its low DCR and SRF characteristics allow it to filter out noise from the input signal, while its small size and low audible noise makes it suitable for use in small form factor designs. Finally, the 9406-38 can be used in RF circuits to match impedance between the source and load, as well as to filter out unwanted signals. Working Principle of the 9406-38 Fixed InductorThe 9406-38 fixed inductor works on the principles of electromagnetic induction. When a current passes through the coil, a magnetic field is generated which induces an opposing current in the coil. This opposition of the current in the coil results in an increase in electrical energy stored in the form of inductance. The inductance of the 9406-38 is determined by the number of turns of the coil, its cross-sectional area, the nature of the core material, and the permeability of the core material. Different materials are used in different types of fixed inductors to produce inductors with different characteristics. For example, ferrite cores are used in fixed inductors for DC operation, while air cores are used for higher frequency applications. ConclusionTo conclude, this article provides an overview of the application field and working principle of the 9406-38 fixed inductor a surface mount component manufactured by Allegro MicroSystems. This component is designed for use in applications such as power supplies, DC-DC converters, and RF circuits, and works on the principle of electromagnetic induction. The 9406-38 is noted for its small size, low audible noise, and RoHS compliance.

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