1945R-21F

DC Resistance (DCR):	5 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:	5.76MHz
Q @ Freq:	65 @ 790kHz
Series:	1945R
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	170mA
Tolerance:	±1%
Inductance:	120µH
Material - Core:	Iron
Type:	Molded
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Fixed inductors are passive electronic components designed to store energy in the form of magnetic fields. The most common type are wound on cores of air, ceramic, or ferrite and are available in various shapes and sizes. Their purpose is to control current, voltage and impedance levels in circuits, including radio receivers, audio amplifiers, and oscillators.The 1945R-21F is a particularly versatile type of fixed inductor with a wide range of practical applications. It is composed of a single or core element that\'s wound with copper wire in its center and lined with a paper dielectric. As a result, this inductor has excellent electrical characteristics and offers up to 21μH (micro Henries) of inductance.The 1945R-21F\'s primary purpose is to store electrical energy in the form of a magnetic field when connected to an electric current, and to recently released that energy when the current is removed. The amount of energy that is stored depends on the inductor\'s size and the magnitude of the current. As a result, the 1945R-21F can be used to filter out unwanted noise and interference in circuits, as well as stabilize signals and protect against voltage and current surges.In audio systems, the 1945R-21F can be used to block DC signals which tend to cause undesired effects such as distortion or hum. Additionally, they can be used to ensure that audio signals remain within the allowed frequency range, so that the audio is clean and free from noise or distortion.The 1945R-21F can also be used to produce a range of other desired electrical results. For example, they can be used to produce a constant voltage level or to increase the impedance of a circuit in order to protect components from over-currents or over-voltages. Similarly, they can be used in oscillator circuits in order to limit the amount of current flow.In summary, the 1945R-21F is a versatile component that can be used in a variety of applications. Its excellent electrical characteristics make it well suited for use in audio systems and other electronic circuits. It can store energy, filter out unwanted noise and interference, stabilize signals, increase impedance, and protect components from over-currents and over-voltages.

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