S1812R-822K Inductors, Coils, Chokes

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Fixed inductors are passive components used in a wide variety of electronic applications to store energy in the form of magnetic fields. Inductors are commonly used in alternating-current circuits where they can provide inductive reactance, reduce current flow, and protect circuits against high voltages. The S1812R-822K is a fixed inductor manufactured by Alpha & Omega Semiconductor Inc. Its low-loss properties make it ideal for high-frequency applications such as microwave ovens, mobile phones, and other wireless communication systems.

The S1812R-822K is a surface mount fixed inductor available in a 10.9 mm by 6.6 mm package. It features a 6-turn winding made of 2x2 double-insulated copper wires. The inductor is rated at 220 µH inductance at 100 MHz and 0.58 Q factor. The inductor is composed of a magnetically shielded core and a non-ferrite substrate. The entire construction has a maximum working temperature of 125°C.

The S1812R-822K is used in a variety of high-frequency applications including radio frequency identification (RFID), microwave equipment, and RF transceivers. It can also be used as a feedback element in power supplies, high-efficiency switching mode power supplies (SMPS), and motor drive circuit applications. The inductor\'s rated DC current is 1.3 A. It also features a low equivalent series resistance (ESR) of 0.14 Omega and a low equivalent inductance (EL) of 28 nH. The inductor is also RoHS compliant.

The S1812R-822K is an excellent choice for applications that require a high frequency, low-loss inductor. Its magnetically shielded core prevents electromagnetic interference (EMI) from affecting the surrounding components and circuits. The inductor\'s small size also makes it an ideal choice for compact designs. Furthermore, the inductor\'s low ESR and EL provide superior performance in switching mode power supply applications.

The working principle of the S1812R-822K is simple. When electric current is applied to the inductor, a magnetic field is generated within the core. The magnetic field stores energy which is then released back into the circuit when the current is removed. This process is known as inductance and is essential for a variety of electronic applications, including but not limited to alternating current circuits, radio frequency applications, and power supplies.

The S1812R-822K is an excellent choice for designers of high-frequency applications. Its magnetically shielded core reduces the risk of interference from external sources, while its small size and low ESR and EL ensure superior performance. Additionally, the inductor is RoHS compliant and can withstand temperatures up to 125°C, making it suitable for a wide range of applications. With its versatile features, the S1812R-822K is the ideal choice for high frequency, low-loss inductor applications.

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