B78148E1223K000 Inductors, Coils, Chokes

DC Resistance (DCR):	350 mOhm Max
Height - Seated (Max):	0.453" (11.50mm)
Size / Dimension:	0.157" Dia (4.00mm)
Supplier Device Package:	--
Package / Case:	Radial
Mounting Type:	Through Hole
Inductance Frequency - Test:	100kHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	12MHz
Q @ Freq:	40 @ 796kHz
Series:	BC+
Shielding:	Unshielded
Current - Saturation:	1.25A
Current Rating:	1.3A
Tolerance:	±10%
Inductance:	22µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed inductors, also known as chokes, are components that can be used in different circuits for various reasons. In the most basic form, a fixed inductor is an inductor that has a fixed amount of inductance and a fixed frequency response. These are often used to block or filter out certain frequencies from a circuit, and they can also be used as parts of a tuned circuit to provide resonance behavior. The B78148E1223K000 is an example of a fixed inductor that adds functionality and value to modern circuits.

The B78148E1223K000 is a low-cost, shielded, axial-lead inductor. It has a very low DC resistance and a rated current of up to 1.2A. It provides a range of inductance values, ranging from 1.3 to 10.4uH. This allows the inductor to be used in many different applications, such as filtering circuits, tuned circuits, and AC circuits. The inductor also features a high self-resonant frequency of 2.1MHz. This allows it to be used at higher frequencies than many other inductors.

The B78148E1223K000 has a wide range of application fields, including power supplies, DC/DC converters, and power converters. It can be used in power supplies to reduce the amount of noise that is introduced by AC ripple, or in DC/DC converters to reduce the impact of inductive switching noise. In power converters, it can be used to filter out harmful harmonics that can overload and damage components. The inductor is also a good choice for RF circuits, as it offers high Q-factor and excellent linearity.

To understand the working principle of the B78148E1223K000, we must first understand what an inductor is and how it works. An inductor is a passive electronic component made up of a wire loop and a core material, typically ferromagnetic. When an electric current flows through the wire loop, a magnetic field is created, and this magnetic field creates an electromotive force known as inductance. The amount of inductance is proportional to the number of turns and size of the wire coil.

The B78148E1223K000 uses this principle to provide its filtering and dampening characteristics. When an alternating current flows through the inductor, the magnetic field created by the core material and the number of turns in the wire loop interacts with the current, creating a countercurrent that opposes the original current. This countercurrent is known as a back EMF, and it acts to reduce the amount of current that passes through the inductor, allowing only certain frequencies to pass through.

The B78148E1223K000 is a great choice for a variety of electronic circuits. Its low cost, wide range of inductance values, and high self-resonant frequency make it a versatile inductor. Its filtering and dampening characteristics make it a great choice for power supplies, DC/DC converters, and power converters, and its high Q-factor and linearity make it a great choice for RF circuits. It\'s no wonder that the B78148E1223K000 is one of the most popular fixed inductors on the market today.

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