PM74SB-221K-RC

DC Resistance (DCR):	1.18 Ohm Max
Height - Seated (Max):	0.193" (4.90mm)
Size / Dimension:	0.307" L x 0.276" W (7.80mm x 7.00mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	5MHz
Q @ Freq:	--
Series:	PM74SB
Shielding:	Shielded
Current - Saturation:	550mA
Current Rating:	360mA
Tolerance:	±10%
Inductance:	220µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to Fixed Inductors

A fixed inductor is an electronic component, normally of a cylindrical, rectangular, or cylindrical-shaped component, that stores energy in the form of an electromagnetic field generated in a coil when a current flows through the inductor. While the inductance is fixed, the current can be adjusted. There are several types of fixed inductors: surface mount inductors, power inductors, and toroidal inductors.In general, fixed inductors are used in many different applications such as power supplies, oscillators, control systems, and signal processing. They also provide filtering functions for DC-DC converters, reduce transient surges, and limit current in circuit applications.

PM74SB-221K-RC Application Field and Working Principle

The PM74SB-221K-RC is a type of fixed inductor manufactured by Murata Electronics. This type of fixed inductor is an application-specific inductor that is specifically designed for use in hybrid vehicles. It is a high-current and high-efficiency inductor that provides superimposed electromagnetic fields for optimized performance.The PM74SB-221K-RC inductor operates on the principle of magnetic induction, which occurs when a current passes through a coil of wire. This current results in an electromagnetic field, or a "mini-magnet" being created within the coil. When current is applied to the wires, it creates a magnetic field that interacts with the magnetic field produced by the coil. This interaction, which is known as mutual inductance, creates an inductance inside the metal core.The PM74SB-221K-RC fixed inductor is ideal for applications such as DC-DC converters, switch mode power supplies (SMPS), and LED drivers. It features a low DC resistance and a high power handling capacity, making it suitable for applications that require high current and high power levels.The PM74SB-221K-RC fixed inductors have a number of advantages over traditional inductors. For example, they require smaller cores and less wire. Additionally, they are much more efficient than most traditional inductors, achieving a better power density and higher performance. Additionally, these inductors are easier to install than traditional devices.

Conclusion

The PM74SB-221K-RC is an efficient and reliable fixed inductor that is suitable for a range of applications. It is ideal for high power and high current applications, such as DC-DC converters, switch mode power supplies, and LED drivers. The PM74SB-221K-RC fixed inductors offer a number of advantages over traditional inductors, such as a smaller core size, easier installation, and higher efficiency.

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