L-07W3N6KV4T

DC Resistance (DCR):	66 mOhm Max
Height - Seated (Max):	0.024" (0.60mm)
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:	250MHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	6GHz
Q @ Freq:	55 @ 900MHz
Series:	--
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	840mA
Tolerance:	±10%
Inductance:	3.6nH
Material - Core:	Ceramic
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors: Application field and working principle

Fixed inductors, also known as chokes, are coils of wire that contain a spool, copper wire and one or more ferrite cores. The ferrite core is what creates the inductance of the coil, and is responsible for providing a smooth transfer of electrical energy from one part of the electrical system to another.Fixed inductors are paramount in a wide range of applications. Some of these applications include:

• rectification of electrical signals
• isolation of electrical noise
• filtering of power supply voltages
• DC blocking capacitors
• coupling of AC and DC components
• inductive heating elements
• LC oscillator circuits
• voltage regulators
• power factor correction (PFC) capacitors
• power supplies
• switching power supplies
• low-frequency inverters
• automotive sound systems
• motor drive inverters

Fixed inductors, sometimes referred to as ‘L-07W3N6KV4T’ due to their common size and shape, contain an insulated spool and cores. The spool consists of a wire coil which is looped around the core and the insulation helps to protect the internal parts of the inductor. The core consists of one or more ferrite pieces, with the number of pieces depending on the inductance of the device.The basic working principle of a fixed inductor is simple; when an electrical current is applied to the device an electromagnetic field is created which causes a voltage to be induced in the coil and core. This in turn creates an impedance in the electrical system, thus allowing the device to act as a filter or an attenuator, depending on the frequency of the current being applied.The impedance of a fixed inductor is determined by the inductance, and the inductance is determined by the number and size of the ferrite cores and the number of windings contained in the coil. As the number of coils is increased, the inductance increases and more energy is stored in the core and coil, resulting in a higher impedance.The frequency response of a fixed inductor works in the opposite manner to that of a capacitor. When an alternating current (AC) is applied to a capacitor, multiple frequencies are created depending on the applied voltage which can cause interference with other electronic components. On the other hand, the frequency response of a fixed inductor is relatively flat, meaning that it acts as a low-pass filter and blocks out any higher frequency signals. Thus, the device can be used to isolate electrical noise from other components in the system.In conclusion, fixed inductors are an important component in various applications. These inductors offer high impedance, efficient operation and frequency stability, allowing them to be used in a wide variety of settings. The basic working principle of a fixed inductor is based on the generation of an electromagnetic field and the induction of a voltage in the coil and core, thus allowing it to act as a filter or attenuator depending on the frequency of the applied current.

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