4302R-273K

DC Resistance (DCR):	13 Ohm Max
Height - Seated (Max):	0.095" (2.41mm)
Size / Dimension:	0.115" L x 0.105" W (2.92mm x 2.66mm)
Supplier Device Package:	--
Package / Case:	2-SMD
Mounting Type:	Surface Mount
Inductance Frequency - Test:	2.5MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	10MHz
Q @ Freq:	20 @ 2.5MHz
Series:	4302R
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	105mA
Tolerance:	±10%
Inductance:	27µH
Material - Core:	Iron Powder
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed inductors are electrical components used in some electrical and electronic circuits. They provide an inductance of a certain value, and they are generally constructed using a coil of wire wound around a magnetically permeable material, such as a core of ferrite, or air. The 4302R-273K is a type of fixed inductor that is used in a wide range of applications. This article looks at both the applications of the 4302R-273K and its working principle.

Applications

The 4302R-273K is a low cost fixed inductor that is used in various circuitry designs, including:

• Filtering
• Smoothing
• Noise Suppression
• Signal Modulation

The 4302R-273K is generally used in applications where space is at a premium, such as commercial electrical wiring or electronic manufacturing. It is also commonly found in automotive components, such as electronic fuel injectors, spark plugs, and some speedometers.

Working Principle

The 4302R-273K, like most fixed inductors, is made up of a coil of wire wound around a core. Typically, the core is made up of ferrite, which is a type of extremely hard, magnetic material. The coil of wire acts as a conductor through which a current is passed. When the current passes through the coil, a magnetic field is generated. This magnetic field then induces a magnetic flux in the core, which is why the core is magnetically permeable.The magnetic flux then generates a voltage in the coil, although this voltage is not the same as the voltage running through the coil. The voltage generated in the coil is known as the back-emf, and it has an opposing direction to the current running through the coil. This back-emf acts as a counter-force, and it opposes the change in current in the coil, thus effectively limiting it. This is known as inductive reactance, and it is the principle upon which fixed inductors, such as the 4302R-273K, operate.

Conclusion

The 4302R-273K is a fixed inductor that is used in various applications. It is especially useful when space is at a premium, such as commercial electrical wiring and electronic manufacturing. It operates on the principle of inductive reactance, whereby a back-emf is generated by a coil wound around a magnetically permeable core, thus limiting the current running through the coil.

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