PM1812-821J-RC

DC Resistance (DCR):	35 Ohm Max
Height - Seated (Max):	0.134" (3.40mm)
Size / Dimension:	0.177" L x 0.126" W (4.50mm x 3.20mm)
Supplier Device Package:	1812
Package / Case:	1812 (4532 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	796kHz
Operating Temperature:	-40°C ~ 100°C
Ratings:	--
Frequency - Self Resonant:	2.5MHz
Q @ Freq:	30 @ 796kHz
Series:	PM1812
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	30mA
Tolerance:	±5%
Inductance:	820µH
Material - Core:	Ferrite
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Fixed inductors are common electronic components used in a variety of applications. The PM1812-821J-RC is a fixed inductor, specifically designed for use in specialized applications and with specific specifications. In this article, the application field and working principle of the PM1812-821J-RC will be discussed.

Applications

The PM1812-821J-RC is used in medium to high power applications where good power handling, low loss and high efficiency may be required. These applications may include power converters, DC/DC converters, alternative energy converters, telecommunication equipment, UPS systems, UPS systems and more. The PM1812-821J-RC is designed for use in both inductors operating in the frequency range from 2kHz to 100MHz and in switching regulators. Its use in medium power circuits allows for operation at up to half of the maximum rated current without significant losses or heating. The inductor is also designed to withstand high temperatures, ranging from -45°C to +125°C, and it has high reliability, even when temperatures rise.

Working Principle

The PM1812-821J-RC fixed inductor is a non-magnetic core inductor consisting of a coil wound around a core material made of ferrite, a type of ceramic. The design of the inductor allows it to pass a magnetic field through the coil, converting AC electrical signals into a range of frequencies. The current is circulating in the inductor at all times. When an alternating current passes through the inductor, it induces a varying magnetic field inside the coil which creates a secondary winding in the coil. This secondary winding stores the energy and keeps the coil and core in a steady state. In this way, the PM1812-821J-RC is able to convert the alternating current to DC, allowing for a higher efficiency in its medium to high power applications. This feature also makes it particularly suitable for the switching regulators used in power converters, DC/DC converters and other special applications.

Conclusion

The PM1812-821J-RC fixed inductor is an efficient and reliable component designed for medium to high power applications. It is capable of converting AC to DC with minimal losses, making it suitable for use in power converters, DC/DC converters, alternative energy converters, telecommunication equipment, and UPS systems. This inductor is also designed to withstand high temperatures, ranging from -45°C to +125°C, and it has a high degree of reliability. The working principle of the inductor lies in its ability to create a stable secondary winding by passing an alternating current through a magnetic field, allowing the inductor to convert the alternating current into direct current.

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