PM42S-4R7-RC

DC Resistance (DCR):	82 mOhm Max
Height - Seated (Max):	0.118" (3.00mm)
Size / Dimension:	0.189" L x 0.189" W (4.80mm x 4.80mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	55MHz
Q @ Freq:	8 @ 7.96MHz
Series:	PM42S
Shielding:	Shielded
Current - Saturation:	1.5A
Current Rating:	1.72A
Tolerance:	±30%
Inductance:	4.7µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

A fixed inductor is an electronic component whose primary function is to provide resistance to a current in an electric circuit. In particular, it works by storing energy in a magnetic field that is generated when a current is passed through the device. Fixed inductors are used in a variety of applications, such as power supplies, filters, and oscillators. One particular example of a fixed inductor is the PM42S-4R7-RC, which is used in a variety of applications.

PM42S-4R7-RC Application Field and Working Principle

The PM42S-4R7-RC is a fixed inductor that is commonly used in voltage-regulated power supplies, electronic filter circuits, audio signal processing, switching power supplies, and frequency control circuits. It is a surface-mount inductor that has a relatively low profile and is designed for surface mounting on printed circuit boards. The inductor has a maximum operating temperature of +125°C and is designed for operation in an area of up to 10 mm by 5 mm. The working principle of the PM42S-4R7-RC is to convert electrical energy into magnetic energy and store it in the form of a magnetic field. When current is passed through the fixed inductor, a magnetic field is created around the inductor. The magnetic field has an inductive reactance, which opposes changes in voltage or current in the circuit. This property of inductors causes them to resist changes in the current and voltage, thus maintaining the energy level. The PM42S-4R7-RC is able to provide high inductance and low DC resistance. This makes it well-suited for use in power supplies and filters where it can provide high inductance values as well as excellent low-frequency noise reduction. Its high inductance can also be used for non-linear frequency compensation and harmonic current suppression in switching converters. The PM42S-4R7-RC inductor also has a high self-resonance frequency. This is the frequency at which the inductor becomes self-resonant, which is a property that allows the inductor to be used in applications such as filters and oscillators. The high self-resonance frequency of the PM42S-4R7-RC reduces the ripple of the output voltage, allowing for more component noise reduction in power supplies. In addition to providing high inductance and excellent control of voltage and current, the PM42S-4R7-RC also offers excellent heat dissipation capabilities. It is designed with a secured wire surface mount technology, which provides enhanced heat dissipation. Additionally, the integrated shield over the core offers improved protection from external interference and helps to reduce the electromagnetic interference (EMI) produced from the inductor. Overall, the PM42S-4R7-RC is an ideal choice for many different applications, including voltage-regulated power supplies, frequency control circuits, filters, and audio signal processing. Its features provide excellent inductance and excellent control of voltage and current, as well as high self-resonance frequency, improved heat dissipation, and superior EMI protection.

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