103R-123J

DC Resistance (DCR):	3.8 Ohm Max
Height - Seated (Max):	0.075" (1.91mm)
Size / Dimension:	0.100" L x 0.100" W (2.54mm x 2.54mm)
Supplier Device Package:	--
Package / Case:	Nonstandard, 2 Lead
Mounting Type:	Surface Mount
Inductance Frequency - Test:	2.5MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	35MHz
Q @ Freq:	25 @ 2.5MHz
Series:	103R
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	160mA
Tolerance:	±5%
Inductance:	12µH
Material - Core:	Ferrite
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed inductors are electric components that consists of wire coils wrapped around a core, such as a coil of copper wire, ferrite core or magnetic core. Fixed inductors are classified according to their application field and working principle. One of the most common types of fixed inductors is the 103R-123J, which is primarily used in telecommunication systems. This type of inductor is designed to match the impedance of telephone lines, and therefore provide a more efficient signal transmission. The 103R-123J is composed of a winding core coil, consisting of 1.2 mm enamelled copper wire, wound around a ferrite core. The ferrite core is formed in a rectangular shape, with an interior gap between the two pieces. This gap is filled with a magnetic material, such as mag-type powder. Once the core is assembled, the coil is then inserted between the two pieces. The two pieces are also connected by a non-magnetic washer to insulate the core from the windings. The working principle of the 103R-123J is relatively simple. When an alternating current is applied to the coil, the magnetic field created by the core induces eddy currents in the coil. These eddy currents are then dissipated, and the resulting energy is transferred into the coil, creating a magnetic field around the windings. This process creates a reactive impedance, which can be used to match the impedance of the telephone line to which it is connected. The 103R-123J can also be used as a voltage regulator, providing a highly stable output voltage when used in conjunction with a capacitor. This makes it an ideal choice for use in power supplies. The 103R-123J can also be used in other applications, such as in audio systems and power amplifiers. Its rich harmonic profile makes it ideal for use in preamplifiers and equalisers, as it is able to deliver precise and accurate sound reproduction. The 103R-123J is a highly efficient and reliable inductor, and is suitable for use in a wide range of applications. Its unique design ensures that it is able to match a wide variety of telephone line impedances, and its low noise characteristics make it an ideal choice for use in audio systems.

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