DC Resistance (DCR):	10.4 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:	790kHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	3.44MHz
Q @ Freq:	65 @ 790kHz
Series:	1945R
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	131mA
Tolerance:	±2%
Inductance:	430µH
Material - Core:	Iron
Type:	Molded
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Inductors, otherwise known as coils, are electronic components used in electrical circuits to store energy in the form of an electromagnetic field when the current flow through them changes. Fixed inductors are inductors with a predetermined inductance, most commonly expressed in units of microhenrys (μH). The 1945R-30G is a type of fixed inductor, and is widely used in a variety of applications.The 1945R-30G is a molded, radial-leaded surface-mount inductor manufactured in small sizes to meet the demands of high density circuit boards. It is primarily made out of an iron core and copper wire, and has an operating frequency range from 0 to 30 MHz. Additionally, it is rated for a DC current of 2 amp, and a DC resistance of 0.21 ohm.In terms of its most common application, the 1945R-30G is used in the production of noise-canceling high-end radio receivers and receivers. It reduces the radio’s noise levels by effectively suppressing parasitic radiation signals, which would otherwise interfere with the reception. This type of inductor also finds use in demodulators and frequency synthesizers.From a technical standpoint, the 1945R-30G operates on the principle of electromagnetic induction. In this process, a coil of conducting wire (1945R-30G) is placed near a current-carrying wire or other source. As the current changes, it produces a time-varying magnetic field around the wire. This field induces a voltage within the coil, which is known as an “induced voltage” or “back EMF”. This induced voltage opposes the original current, and the inductor stores energy by “blocking” the current until the magnetic field dissipates.The 1945R-30G’s ferrite core increases its inductance, and improves its frequency response by reducing losses. This makes the inductor more efficient and allows it to store more energy at a given frequency range. Additionally, the inductor’s molded housing has been designed to withstand shock and vibration, making it suitable for environments such as automotive and aerospace. Finally, its surface-mount design allows it to be installed on circuit boards without the use of specialized tools, further improving its overall efficiency.Therefore, the 1945R-30G is an ideal choice of fixed inductor for a variety of applications. Its frequency response, stability, and durability make it suitable for use in high-end noise-cancelling receivers, demodulators, and frequency synthesizers. Its size and surface-mount design also allow it to easily fit onto densely-packed circuit boards with minimal installation difficulties. With all these advantages, the 1945R-30G is a reliable and cost-effective choice of fixed inductor.

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