SDR0906-222KL

DC Resistance (DCR):	8 Ohm Max
Height - Seated (Max):	0.248" (6.30mm)
Size / Dimension:	0.492" L x 0.413" W (12.50mm x 10.50mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	1kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	2MHz
Q @ Freq:	94 @ 252kHz
Series:	SDR0906
Shielding:	Unshielded
Current - Saturation:	230mA
Current Rating:	140mA
Tolerance:	±10%
Inductance:	2.2mH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors: SDR0906-222KL Application Field and Working Principle

Fixed inductors, also referred to as inductors or coils, are components used in electronic equipment where energy is used to transfer an electrical signal from one point to another. An inductor is able to store energy in the form of an electromagnetic field before releasing it as electrical current when needed. Fixed inductors are made with a single ferromagnetic core and windings of insulated copper wire. Among the types of fixed inductors is SDR0906-222KL. This article will discuss the application field and working principle of the SDR0906-222KL.The SDR0906-222KL fixed inductor is primarily used in power and signal coupling circuits. Its major application is for providing inductance or filtering in DC to DC converter circuits. This type of inductor is used to reduce switching noise and to reduce EMI (electromagnetic interference). They are also capable of being used as a filter in low frequency circuits up to a few hundred kHz.The SDR0906-222KL fixed inductor has a ferromagnetic core that is comprised of high permeability soft ferrite material along with wrapped copper windings. This type of inductor has an inductance range of 0.15mH to 0.2mH and it has a DC Resistance of 0.020-0.210ohms. Its rated current is 29A and its saturation current is 15. The rated frequency is from 10kHz to 300kHz.Working principle of this fixed inductor is based on the electromagnetic field. When a current is applied to the winding, it will generate a simple, uniform magnetic field around it. This magnetic field causes opposition to the flow of the applied current. This is referred to as inductive reactance. The greater the number of windings, the greater the inductance, and the greater the opposition to the flow of current.When AC current is applied to the SDR0906-222KL fixed inductor, there is a gradual increase of the current when the circuit is switched on. Afterward, the current passes through its peak value and then begins to decrease until the circuit is switched off. As the current flows through the windings of the inductor, it induces self-inductance and stores energy in the form of a magnetic field. When the current that is applied to the inductor decreases, the magnetic field begins to collapse, and it releases energy back into the circuit. This process is referred to as aback EMF.The SDR0906-222KL fixed inductor is used primarily for power and signal coupling applications in DC to DC converters. It is able to reduce switching noise and to reduce EMI. This inductor is also able to be used as a filter in low frequency circuits up to a few hundred kHz. Fixed inductors are simple components that are able to store energy and release it back to the circuit when needed. This type of inductor relies on its magnetic field to provide opposition to the flow of current. Therefore, the SDR0906-222KL is an excellent choice for providing inductance and filtering in circuits.

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