SDR0503-821KL

Series:	SDR0503
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Wirewound
Material - Core:	Ferrite
Inductance:	820µH
Tolerance:	±10%
Current Rating:	120mA
Current - Saturation:	155mA
Shielding:	Unshielded
DC Resistance (DCR):	10 Ohm Max
Q @ Freq:	40 @ 796kHz
Frequency - Self Resonant:	3MHz
Ratings:	--
Operating Temperature:	-40°C ~ 125°C
Inductance Frequency - Test:	1kHz
Mounting Type:	Surface Mount
Package / Case:	Nonstandard
Supplier Device Package:	--
Size / Dimension:	0.197" L x 0.189" W (5.00mm x 4.80mm)
Height - Seated (Max):	0.130" (3.30mm)

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Fixed Inductors - SDR0503-821KL Application Field and Working Principle

Fixed inductors, also known as chokes, are components used to store energy from a power source in an electric field. They do this by using a coil or loop of wire which, when placed in a magnetic field, will induce a current in the coil proportional to the amount of power from the source. The induced current is then stored in the inductor and can then be used to supply power, regulate voltage and reduce noise and interference in electrical circuits.The SDR0503-821KL fixed inductor is a component from Sumida\'s DR Series of shielded type power inductors, designed for use in DC-to-DC converter applications. It is a low-profile, surface mount inductor made of ferrite material with an epoxy-molded case and terminals, designed for easy installation and efficient power transfers. It features an added Ferrite-Shield for improved RF noise shielding and a wide operating temperature range. The SDR0503-821KL inductor has a rated current of 8.2 Amps and an allowable temperature range of -55C to 115C, making it a suitable choice for a wide range of applications.When used in a DC-to-DC converter, the SDR0503-821KL acts as a filter, regulating the flow of electrical current. It works by trapping energy in the form of a magnetic field, generated when current flows through the component\'s windings. This magnetic field stores energy in the form of magnetic flux, which is then released back into the circuit when the current falls below a certain level. In this way, the inductor functions as a filter, protecting sensitive components against sudden peaks in current while also allowing the efficient transfer of electrical energy from the DC supply.The use of an inductor in a DC-to-DC converter is essential for regulating and stabilizing the flow of current. Without their help, the system would be prone to spikes and dips in voltage, leading to the risk of component damage or even system failures. The SDR0503-821KL inductor, thanks to its ferrite material, offers increased resistance to electrical signals, helping to keep the flow of current stable and consistent.Another way inductors are used is in the filtering of noise and interference. Inductance is the property of a component which allows it to filter out certain frequencies while allowing others through. By winding the component in different arrangements, the inductor can be tuned to filter out electrical noise from a particular source. This means that by using the SDR0503-821KL, users can create a system to more effectively eliminate noise and interference.Finally, the SDR0503-821KL is very versatile and can be used in a variety of other applications. It can be used to create oscillators, give signals sharp edges, reduce transients, and provide direct current when used in flyback circuits. It can also be used with other components in voltage regulators and in power conversion systems. Overall, the SDR0503-821KL is a highly capable inductor which provides power regulation, noise protection, and efficient energy transfer in a wide range of applications. With its low-profile form factor, wide operating temperature range, and Ferrite-Shield protection, it is an excellent choice for designers looking for a reliable, robust, and efficient solution for their DC-to-DC conversion needs.

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