1945R-12J

DC Resistance (DCR):	1.6 Ohm
Height - Seated (Max):	--
Size / Dimension:	0.193" Dia x 0.447" L (4.90mm x 11.35mm)
Supplier Device Package:	--
Package / Case:	Axial
Mounting Type:	Through Hole
Inductance Frequency - Test:	2.5MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	32MHz
Q @ Freq:	75 @ 2.5MHz
Series:	1945R
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	430mA
Tolerance:	±5%
Inductance:	22µH
Material - Core:	Iron
Type:	Molded
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Inductors are a form of passive electrical component which can store energy in the form of an electric field when supplied with an electric current. They come in many shapes, sizes and uses, with a wide variety of applications in electrical engineering. One such inductor, the 1945R-12J, is an example of a fixed inductor, meaning the inductance is fixed and non-adjustable. This article will discuss the 1945R-12J application field and working principle.The 1945R-12J is a fixed inductor which is constructed from a ferrite core, two wires and a plastic housing. The inductance of the 1945R-12J is fixed at 12uH, meaning that it cannot be adjusted or changed when installed in the circuit. The core is constructed from ferrite, which helps to increase the inductance of the device and improve its performance. The two wires are connected to the core, allowing an electrical current to flow through the inductor. The plastic housing protects the core and wires from damage and prevents short circuit.The 1945R-12J is most commonly used in applications such as power supplies, which require a high level of voltage. The fixed inductor helps to maintain a constant voltage level, even when the load changes, thus making it suitable for a range of applications. It is also highly efficient, utilising very little power when compared to other inductors. The working principle of the 1945R-12J is based on Faraday’s law of induction which states that an electric current flowing through a conductor produces a magnetic field. The magnetic field interacts with the core and wires of the inductor, resulting in an increase in the flow of current which is caused by the induction effect.The inductor is also able to utilise a number of physical effects, such as the reluctance effect. This occurs when the core and wires are not aligned in the same direction, creating a force which resists the flow of current. This effect helps to further regulate the voltage level of the circuit.In addition to its use in power supplies, the 1945R-12J is also commonly used in audio applications, such as speakers and amplifiers. In these applications, the inductor helps to filter out unwanted noise and improve the audio quality of the output.Overall, the 1945R-12J is a cost-effective and efficient fixed inductor, with a range of applications in various electrical projects. Its ability to maintain a constant voltage level, even when the load changes, makes it an ideal choice for a variety of electrical projects. Furthermore, its high efficiency means it uses minimal power when compared to other inductors.

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