ELJ-QF18NJF Inductors, Coils, Chokes

DC Resistance (DCR):	700 mOhm Max
Height - Seated (Max):	0.022" (0.55mm)
Size / Dimension:	0.039" L x 0.020" W (1.00mm x 0.50mm)
Supplier Device Package:	0402 (1005 Metric)
Package / Case:	0402 (1005 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100MHz
Operating Temperature:	-40°C ~ 85°C
Ratings:	--
Frequency - Self Resonant:	2.2GHz
Q @ Freq:	10 @ 100MHz
Series:	QF
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	240mA
Tolerance:	±5%
Inductance:	18nH
Material - Core:	Ceramic
Type:	Multilayer
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Fixed inductors are electronic components that convert electrical energy to mechanical energy or vice versa. They are used in a variety of applications, including power supplies, switching power supplies, and variable frequency drives (VFDs). ELJ-QF18NJF is a multi-functional, fixed inductor designed to provide high quality performance in a variety of applications.ELJ-QF18NJF is an ideal choice for portable electronic devices, such as cameras, cell phones and MP3 players. Its small size makes it a convenient component for space-constrained designs. The device is designed to maintain a steady current even when driven by a wide range of frequencies and voltages. The multi-functional fixed inductor is also designed to provide high-quality, low-impedance power delivery.The distinguishing feature of the ELJ-QF18NJF is its working principle. The inductor core is made from high-permeability ferrite material, while the primary and secondary windings are constructed from high-frequency copper coated aluminum wire. This combination\'s effective characteristic impedance and low saturation current allows the inductor to provide excellent current-limiting performance and low EMI emission.The primary winding of the ELJ-QF18NJF is connected to an input power source, and the secondary winding is connected to the desired device, i.e. drive, switch, etc. As the primary winding is energized, an electromagnetic field is created inside the inductor core. This field induces a voltage in the secondary winding, control its current flow, and transfers power from the input source to the output device.Due to the high-frequency design and outstanding performance, the ELJ-QF18NJF is an ideal component for applications requiring high-efficiency, high-capacity power conversion. It offers excellent temperature stability and maximum power transfer, enabling it to work in applications operating in a wide range of working temperatures and duty cycles. The superior parameters of the device make it a great choice for power supplies, switching supplies, VFDs, and low-voltage DC motors.In addition, the ELJ-QF18NJF can also be used as a filter in high-frequency applications such as communication, power, and signal circuits. The inductor\'s low DC resistance and low inductance allow for high saturation current and high-frequency operation. Due to its low self-resonance frequency, the device can filter out high-frequency noise in these applications.The characteristics of the ELJ-QF18NJF make it a great component for all types of applications. Its outstanding performance, combined with its small size, low cost, and wide operating temperature range, make it an ideal choice for anyone looking to build high-quality electronics designs. Its multi-functional capabilities make it one of the best fixed inductors on the market.

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