PM54-181K-RC

DC Resistance (DCR):	1.38 Ohm
Height - Seated (Max):	0.189" (4.80mm)
Size / Dimension:	0.228" L x 0.228" W (5.80mm x 5.80mm)
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:	20 @ 796kHz
Series:	PM54
Shielding:	Unshielded
Current - Saturation:	500mA
Current Rating:	380mA
Tolerance:	±10%
Inductance:	180µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors – PM54-181K-RC Application Field and Working Principle

Inductors are one of the most commonly-used and ubiquitous components in modern electrical and electronic circuits. Mobile phones, computers, speakers, calculators, electronic devices and appliances all employ fixed inductors in some form. PM54-181K-RC is the type of fixed inductors. It has different application field and working principle.

Application Field

PM54-181K-RC is a type of U-shaped inductor, with two outer legs connected to the inner coil. This type of inductor is mainly used in DC/DC converters, switch power supplies, electrical and electronic personal and home equipment, and battery charging circuits. PM54-181K-RC can be found in various types of consumer, automotive, aerospace, medical and communications equipment.

Working Principle

Inductors function as an electrical device which stores energy in the form of a magnetic field. PM54-181K-RC fixed inductors use ferrite cores to increase the inductance value of a given device. The core material provides a higher inductance than a coil-type inductor. The core utilizes a sense winding connected in series with a drive winding which is the outer part that provides the inductive properties. The sense winding is then connected to a control voltage which regulates the current and provides feedback about the current and voltage.When energy is applied through the inductor, the current in the drive winding will increase while the current in the sense winding will be the same. This allows the inductor to regulate the current in the circuit. During operation, magnetic flux is generated around the core’s substance which then increases the total inductance of the component. This allows the inductor to increase or decrease the current through the drive winding. The circuit current can be adjusted by controlling the voltage applied to the sense winding. The higher the voltage applied to the sense winding, the higher is the total current, while the lower voltage applied to the sense winding, the lower is the total current. This allows for precise current control in the circuit.

Conclusion

PM54-181K-RC is a type of fixed inductor with a U-shaped ferrite core used in various applications such as DC/DC converters, switch power supplies, battery charging circuits, and electrical and electronic equipment. It works by storing energy in the form of a magnetic field, and the current in the circuit can be adjusted by controlling the voltage applied to the sense winding.

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