1945-21F

DC Resistance (DCR):	5 Ohm Max
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:	1945
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 are one of the most commonly used electronic components in the field of electronics. The 1945-21F type is no exception, as it is also widely used today. It is classed as a fixed inductor due to the fact that it has its inductance value set at a given value which is not subject to change.In terms of its specific working principles and functions, the 1945-21F can be broken down into two parts: its inductor and its capacitor. The inductor component is composed of wire wrapped around a magnetic core. When the current passes through this wrapped wire, it creates a magnetic field. This field produces a voltage which is proportional to the rate of change of the current. The capacitor within the 1945-21F is responsible for storing electrical charge and also serves to prevent sudden spikes within the electrical current which may occur.The 1945-21F is mainly used in circuits where low frequency pulses are required. An example of this is within the world of telecommunications where low frequency pulse trains are needed to encode data for transmission. The 1945-21F is also used to create or regulate AC power sources, as well as within the production of musical instruments.The fact that the 1945-21F has a fixed inductance value allows it to be used in a variety of applications, allowing it to be a useful and versatile tool. In addition to the previously mentioned uses, the 1945-21F can also be used in many AC power circuits in order to produce a limited output that is not subject to fluctuations. The 1945-21F can also be used for filtering purposes, as its inductance helps to reduce spurious noise that may be present at specific frequencies.In terms of its physical characteristics, the 1945-21F is a cylindrical device consisting of metal wire wrapped around a ferrite core, and is usually packaged in a plastic housing. It has dimensions of 9.9 mm in diameter and 7.3 mm in length and is equipped with a pin for easy connection to other electronic components. The 1945-21F has a maximum working voltage of 28V and a maximum current of 0.12A.In conclusion, the 1945-21F is an integral part of many electronic components and circuits, and is used in telecommunications, AC power circuit production, musical instruments, and filtering applications. Its fixed inductance value means it can be a versatile and useful tool within various projects. Its physical characteristics and dimensions also make it suitable for a wide range of applications. Consequently, the 1945-21F can be considered an essential part of any electronic circuit build.

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