SDR0503-221K

DC Resistance (DCR):	2.5 Ohm Max
Height - Seated (Max):	0.130" (3.30mm)
Size / Dimension:	0.197" L x 0.189" W (5.00mm x 4.80mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	1kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	6MHz
Q @ Freq:	35 @ 796kHz
Series:	SDR0503
Shielding:	Unshielded
Current - Saturation:	340mA
Current Rating:	250mA
Tolerance:	±10%
Inductance:	220µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

Fixed inductors are essential components of electronics and electrical engineering. They are frequently used in the most basic electrical and electronic devices such as televisions and computers. In particular, sdr0503-221K fixed inductors, with their low self-inductance, high inductance to volume ratio and wide frequency response, are essential components for many applications.

Application Fields

SDR0503-221K is a type of fixed inductors which exhibits low self-inductance and a wide frequency response. It is mainly used for power supplies, EMI/RFI suppression, switch/motor control, noise suppression filter design, etc.In power supplies, the inductor is used to filter the power supply output, so that the supply voltage remains constant. The SDR0503-221K inductor features a wide frequency range, which is suitable for a variety of power supplies.In EMI/RFI suppression, the inductor is used to attenuate high frequency EM waves. The SDR0503-221K inductor has excellent shielding ability, which can effectively prevent interference from EMI/RFI.The SDR0503-221K inductor is also popular in switch and motor control, as its high inductance to volume ratio allows it to switch faster, compared to other types of inductors. In addition, the inductor is often used in noise suppression filters, to reduce interference from outside sources.

Working Principle

The working principle of a fixed inductor is based on Faraday\'s law of electromagnetic induction. According to Faraday\'s law, a changing current in a coil creates an induction voltage, which is opposite to the current\'s direction upon entering the coil. The SDR0503-221K inductor consists of a core, usually made of iron, wound with a copper wire or other suitable conductor. When an alternating current (AC) flows through the coil, a magnetic field is created, which induces an electrical field in the coil. This induces voltage in the coil, which is opposite to the direction of the current entering the coil.The magnitude of the induced voltage depends on the inductance of the coil. SDR0503-221K inductors have high inductance to volume ratio, which gives them a wide frequency response and low self-inductance. The SDR0503-221K inductor is also characterized by its low noise characteristics. This is because the core of the device absorbs any high frequency noise generated by the current and the magnetic field, thus reducing interference from outside sources.

Conclusion

In conclusion, sdr0503-221K is a type of fixed inductor which is ideal for power supplies, EMI/RFI suppression, switch/motor control and noise suppression filter design. It features a low self-inductance, high inductance to volume ratio and wide frequency response. The inductor works based on Faraday\'s law of electromagnetic induction, where current in a coil creates a magnetic field, which induces an electrical field in the coil. The SDR0503-221K inductor is also characterized by its low noise characteristics, which makes it suitable for applications that require low interference.

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