108-683KS

DC Resistance (DCR):	25 Ohm Max
Height - Seated (Max):	0.075" (1.91mm)
Size / Dimension:	0.100" L x 0.100" W (2.54mm x 2.54mm)
Supplier Device Package:	--
Package / Case:	Nonstandard, 2 Lead
Mounting Type:	Surface Mount
Inductance Frequency - Test:	2.5MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	8.2MHz
Q @ Freq:	30 @ 2.5MHz
Series:	108
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	32mA
Tolerance:	±10%
Inductance:	68µH
Material - Core:	Iron
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to the 108-683KS

The 108-683KS Fixed Inductor is an inductor designed for use in radio-frequency (RF) circuits. It is often used as part of DC-DC power supply circuits, antenna matching networks, and other similar applications. The 108-683KS is a low-Q inductor, meaning it has a relatively low inductance and resistance. It is also highly stable over a wide range of temperatures, making it well-suited for use in mobile and automotive electronic systems.

Construction of the 108-683KS

The 108-683KS is constructed using two copper windings wound around a ferrite core. The inductor is housed in a molded plastic package and sealed for maximum environmental protection. The copper windings have a very low resistance, which helps keep the inductance low. Additionally, the package is designed to have a low-profile, making it well-suited for use in very constrained board-space applications.

Electrical Parameters

The 108-683KS is rated at 50 mH, with a maximum DC current rating of 1.5 A. The inductor has approximately 10 mOhms of DC resistance, meaning it has a very low power dissipation. The frequency response of the inductor is up to 50 MHz, making it suitable for use in RF applications. Additionally, the inductance is said to remain stable over a wide temperature range, up to 105˚C.

Applications

The 108-683KS is most commonly used as part of DC-DC power supply circuits, such as adapter circuits or battery-operated devices. It is also used in antenna matching networks, where it helps to match the antenna to the desired frequency and impedance. It is also used in various other RF circuits, such as amplifiers, mixers, and more. The low-profile package of the inductor is well-suited for use in electronic devices with very constrained board-space.

Working Principle

The fundamental principle of operation of the 108-683KS is based on Faraday’s Law. Basically, it states that an induced voltage is generated in a coil or wire when a changing magnetic field is applied to it. In the case of the 108-683KS, the magnetic field is provided by the ferrite core, while the copper windings induce a voltage in response to the changing magnetic field. This induced voltage is used to create a current, which is used to power the circuit.

Conclusion

The 108-683KS is a fixed inductor designed for use in radio-frequency circuits. It is constructed using two copper windings wound around a ferrite core, and housed in a low-profile molded plastic package. It is rated at 50 mH with a maximum DC current of 1.5 A and a frequency response up to 50 MHz. It is typically used in DC-DC power supply circuits, antenna matching networks, and other radio-frequency applications. The working principle of the 108-683KS is based on Faraday\'s Law, where an induced voltage is produced in response to a changing magnetic field.

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