SDR1105-390KL Inductors, Coils, Chokes

DC Resistance (DCR):	140 mOhm Max
Height - Seated (Max):	0.197" (5.00mm)
Size / Dimension:	0.437" L x 0.394" W (11.10mm x 10.00mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	1kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	AEC-Q200
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	SDR1105
Shielding:	Unshielded
Current - Saturation:	4.5A
Current Rating:	2.4A
Tolerance:	±10%
Inductance:	39µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed InductorsFixed Inductors, also known as chokes or coils, are passive electronic components that store the energy and transfer the power in an electrical circuit. They are widely used in different types of applications as they come in different sizes and shapes and are available in various materials such as air, ferrite, and iron.One of the most common types of fixed inductors is the SDR1105-390KL, which is a self-shielded surface mounted SMD inductor. This coil consists of a ferrite core and copper wire wound around it, and features an operating temperature range of -40°C to +125°C, with a rated current of 1.3A and a maximum resistance of 0.35Ω. It is capable of providing high efficiency performance in various applications.The SDR1105-390KL can be used for different purposes, such as power line filtering, switching power supplies, and DC-DC converter circuits. It works by providing the necessary amount of inductance and resistance that is required for the power supply to function properly. The working principle of the SDR1105-390KL involves the generation of an electro-magnetic field when the current in the circuit varies. This creates a self-induced voltage in the same circuit, which is responsible for the inductance. The amount of the induced voltage varies with the rate of change of the applied current, providing the desired inductance. Apart from limiting the amount of current as per the requirement, the SDR1105-390KL is also capable of reducing electrical noise and ripple in the power supply, providing a more reliable performance. It can also be used for EMI/RFI protection in automotive and consumer electronics, and as a choke or isolation transformer for power supplies. Overall, the SDR1105-390KL is a reliable and efficient inductor that can be used for a variety of applications, providing improved performance and reliability. By filtering the current and voltage fluctuations, it ensures smooth and consistent operation of the circuit.

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