1944-09G

DC Resistance (DCR):	70 mOhm Max
Height - Seated (Max):	--
Size / Dimension:	0.193" Dia x 0.447" L (4.90mm x 11.35mm)
Supplier Device Package:	Axial
Package / Case:	Axial
Mounting Type:	Through Hole
Inductance Frequency - Test:	25MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	288MHz
Q @ Freq:	55 @ 25MHz
Series:	1944
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	2A
Tolerance:	±2%
Inductance:	470nH
Material - Core:	Phenolic
Type:	Molded
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Fixed inductors are passive electrical components that store energy in the form of a magnetic field. They are used in a variety of consumer and industrial electronic circuits. The 1944-09G is a miniature fixed inductor designed specifically for high-frequency applications. This article will discuss the 1944-09G\'s application field and working principle.

Application Requirements and Field

The 1944-09G is designed for use in high-frequency applications. As such, it is required to have low DC resistance (< 0.5Ω) and a high Q-factor (>100). Additionally, the 1944-09G must be well suited for mounting on printed circuit boards, have the ability to cover a wide range of frequencies from 100kHz to 1GHz, and be able to operate in temperatures up to 125℃. The 1944-09G is especially suitable for use in consumer electronics such as cellular phones and portable music players due to its low DC resistance and high Q-factor. Additionally, the 1944-09G can be used for a variety of industrial applications including medical imaging, radio frequency (RF) amplifiers, and microwave circuits.

Design and Construction

The 1944-09G is a miniature fixed inductor with a small form factor, measuring in at only 2.0mm x 1.5mm x 0.6mm. It consists of a monolithic core made of ceramic ferrite and a copper wire wound around it. The ferrite core and copper wire are encapsulated in a thermoplastic casing for protection. The casing is primarily composed of polyurethane and ethylene-vinyl acetate (EVA).

Working Principle

The 1944-09G works by storing energy in the form of a magnetic field. When an alternating current passes through the copper wire via the power source, a magnetic field is created. This magnetic field is stored inside the ferrite core and can be harnessed to produce a voltage when needed. The number of turns of the manually wound copper wire is determined in order to achieve the desired level of inductance.

Conclusion

The 1944-09G is a miniature fixed inductor specifically designed for high-frequency applications. It is composed of a ceramic ferrite core with a copper wire wound around it and is encapsulated in a thermoplastic casing for protection. The 1944-09G is capable of operating at temperatures up to 125℃ and has a low DC resistance and a high Q-factor, making it well suited for consumer electronics and industrial applications. By storing energy in the form of a magnetic field, it is able to produce a voltage when needed.

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