LQH55DN680M03L Inductors, Coils, Chokes

Series:	LQH55
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Wirewound
Material - Core:	Ferrite
Inductance:	68µH
Tolerance:	±20%
Current Rating:	640mA
Current - Saturation:	--
Shielding:	Unshielded
DC Resistance (DCR):	938 mOhm Max
Q @ Freq:	--
Frequency - Self Resonant:	7.6MHz
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Inductance Frequency - Test:	1MHz
Mounting Type:	Surface Mount
Package / Case:	2220 (5750 Metric)
Supplier Device Package:	2220 (5650 Metric)
Size / Dimension:	0.224" L x 0.197" W (5.70mm x 5.00mm)
Height - Seated (Max):	0.197" (5.00mm)

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Fixed Inductors are indispensable components in electronic circuits for their multiple functions, such as limiting current, storing energy, transforming signals, etc. In a wide range of applications, LQH55DN680M03L stands out with its unique features.LQH55DN680M03L is originally developed by TDK Corporation, a leader in the field of electronic components. The inductor consists of two units-inner coil and outer cover. The inner coil is made from special-purpose fine-filar copper, while the outer cover is formed from PET insulation layer and a tin-plated steel cover. The high-quality materials, careful design, and thin wire guarantee high level of reliability for LQH55DN680M03L.The LQH55DN680M03L has designed with an 18mH inductance and maximum DC current rating of 4.0A. It offers reliable performance at high frequency up to 1MHz. The inner coil structure is specially configured to enable stable inductance even under high-frequency and high current conditions. Thanks to its excellent properties, the LQH55DN680M03L has found applications in many fields, such as notebook computers, mobile device, HRD Drive and networking applications.The working principle of LQH55DN680M03L is based on one of the characteristics of inductors- to oppose changes in electrical current. When a current flows through a coil, a magnetic field will be generated, thus causing an opposing force to the current. The force increases proportionally with the rate of changes of current. LQH55DN680M03L utilizes this property to restrict the flow of current through an electric circuit.By controlling the flow of current, LQH55DN680M03L can stabilize voltage, adjust signal characteristics, or reduce power consumption. In addition, inductors are also used to store or release energy, which is crucial for providing strong EMI immunity. Furthermore, they can be used to separate noise from power lines to ensure the signal integrity in digital circuits.LQH55DN680M03L stands out among Fixed Inductors for its excellent performance. Adopting special materials and carefully designed coil structure, the inductor can withstand high operating temperature and stable inductance even at high frequencies. Thanks to its reliable performance and low power consumption, LQH55DN680M03L is widely used in notebook computers, mobile devices, drones, Hard Disk Drives, and many other applications.

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