PM42S-2R7

DC Resistance (DCR):	105 mOhm Max
Height - Seated (Max):	0.079" (2.00mm)
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:	7.96MHz
Operating Temperature:	-30°C ~ 100°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	PM42S
Shielding:	Shielded
Current - Saturation:	--
Current Rating:	1.28A
Tolerance:	±30%
Inductance:	2.7µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Fixed inductors are passive electronic components consisting of wire windings around a solid core or around an air core, and they are composed of two main parts: a magnetic core (or core material) and wire. A magnetic core is the heart of the inductor, which gives the inductor its reactance and inductance properties. A wire is typically a copper winding that is snaked around the core to give the inductor its inductance.The PM42S-2R7 fixed inductor is made with a high temperature composite construction. The core material is composed of high performance ferrite, and this combination makes it highly efficient in storing magnetic energy. The wire is made with high conductivity copper, such as enamel wire or teflon wire. This helps to promote good electrical performance, enabling current to flow freely. Its construction and design make it ideal for use in various applications, such as in high frequency circuits, for switching circuits, in power converters, in voltage regulators and many other high-reliability applications.The PM42S-2R7 inductor is designed to be a low cost, high reliability component, providing a good balance between cost and performance. It has an operating temperature range from -55°C to +125°C and is designed to maintain high reliability even in extreme conditions. The component is also RoHS compliant, ensuring it is environmentally friendly.The PM42S-2R7 inductor is designed to be used in a wide variety of applications. In SMPS applications, it is used to control current in buck, boost and various other converter architectures. In switched mode power conversion applications, the PM42S-2R7 inductor is used as an LC filter to improve the efficiency and reduce electrical noise in the system, and this inductor is also used as an EMI filter to minimize electromagnetic interference.The working principle of a fixed inductor is simple. As electric current is passed through the induactor, a magnetic field is created around the inductor. This magnetic field induces a voltage across the inductor which opposes the flow of the current. This phenomenon is known as inductance and is represented by the letter "L". The greater the inductance of an inductor, the more voltage that will be induced across it, and this induces a current flow in the opposite direction of the original current. This opposition to current flow is what gives an inductor its name.In summary, the PM42S-2R7 is a fixed inductor used in a variety of applications such as SMPS applications and switched mode power conversion applications. It is made with an efficient ferrite core and high conductivity copper and is designed to provide good electrical performance. It is a low cost component that provides excellent reliability and is RoHS compliant, providing a good balance between cost and performance. Its working principle is to create a magnetic field when electric current is passed, and this induces a voltage across the inductor which opposes the flow of the current, thus creating inductance.

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