PM5022S-221M

DC Resistance (DCR):	470 mOhm Max
Height - Seated (Max):	0.299" (7.60mm)
Size / Dimension:	0.732" L x 0.602" W (18.60mm x 15.30mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 85°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	PM5022S
Shielding:	Shielded
Current - Saturation:	1.9A
Current Rating:	1.1A
Tolerance:	±20%
Inductance:	220µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Fixed Inductors : PM5022S-221M application field and working principle

Fixed inductors, such as the PM5022S-221M, are standard components used in various applications. These devices are a type of inductor designed to react to alternating current by producing an inductive reactance, and are designed to have few or no variations in their values of inductance when exposed to varying environmental conditions.This type of inductor component plays a very important role in a diverse range of applications, from precision filtering to radio-frequency antenna matching, and more. This article explores the use of the PM5022S-221M inductors and their working principle, to understand the advantages that these components can bring to various applications.

The PM5022S-221M Inductor

The PM5022S-221M is an air core inductor with SMD (Surface Mount Device) packaged type, and a compact size of 2.2mm x 0.8mm x 1.0mm. The device is rated up to 1.0A/2.2GHz, with an inductance value of 220nH. It also has a wide operating temperature range from -40°C to +105°C, with excellent surge current capacity and good EMI attenuation performance.In terms of appearance, the PM5022S-221M is small, meaning it can be easily embedded into small or compact circuits, suitable for high density applications. In terms of improvements, the inductor has better thermal and EMI performance, as well as higher efficiency, allowing it to work effectively in more challenging applications.

Applied Industries and Applications of PM5022S-221M Inductors

The PM5022S-221M inductors are mainly used in the automobile, consumer electronics, communications, networking and other sectors. In terms of usage, these inductors are commonly used for impedance matching, DC blocking, ripple reduction and RF signal filtering. In automotive applications, the PM5022S-221M can be used as a self-resonant inductor to regulate the electronic circuits, as well as to provide current limiting protection during power-on reset or inverter drive applications. In addition, it can be used as a low-pass filter component to reduce the influence of power disturbances caused by alternating electromagnetic fields.In consumer electronics, it can be used as an EMI filter, especially for devices with high power and high frequency, such as tablets, laptops, etc. Its excellent performance makes it ideal for these applications, as it can reduce the interference from the RF signals emitted by these devices.In the communication and networking fields, it can be used for signal transmission between digital equipment and telephone dial-up modem connection. It can also be used for anti-jamming filter to reduce the radiation level and interference of wireless communication.

Working Principle of Fixed Inductors

Fixed inductors use electrical current to create a magnetic field. As the current increases or decreases, the rate of change of the magnetic field reaches its maximum at the origin, and then the inductance created by the inductor begins to increase. The inductance is expressed as a function of the current flowing through the inductor, and this is usually represented by the inductance equation L=μI.When an alternating voltage is applied to a fixed inductor, it generates two opposite fluxes that induce two emfs, called the forward and reverse emfs. The direction of the current in the inductor is determined by the difference between the forward and reverse emfs.This type of inductor is based on the principle of Faraday\'s Law, which states that “when a conductor is placed in a magnetic field, an emf is induced in the conductor which is proportional to the rate of change of the magnetic flux.” This means that when an alternating voltage is applied to the inductor, an electrical current will be generated in the conductor.

Conclusion

Fixed inductors, such as the PM5022S-221M, are essential components in a broad range of industries. This article has discussed the features and applications of the PM5022S-221M inductor, as well as the working principle behind fixed inductors. The PM5022S-221M is a reliable and cost-effective component that can bring excellent performance to many applications.

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