ELJ-PA121KF Inductors, Coils, Chokes

DC Resistance (DCR):	7 Ohm Max
Height - Seated (Max):	0.094" (2.40mm)
Size / Dimension:	0.126" L x 0.098" W (3.20mm x 2.50mm)
Supplier Device Package:	--
Package / Case:	1210 (3225 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	796kHz
Operating Temperature:	-20°C ~ 85°C
Ratings:	--
Frequency - Self Resonant:	6MHz
Q @ Freq:	20 @ 796kHz
Series:	PA
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	75mA
Tolerance:	±10%
Inductance:	120µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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.ELJ-PA121KF Fixed Inductors: Application Field & Working PrincipleInductors, also known as coils or chokes, are electrical components used to store energy in a magnetic field and to transfer energy between circuits. Among these, fixed inductors, or fixed-value inductors, are the most basic type. They are used in a wide range of applications, from basic electrical circuits to complex designs. The type of fixed-value inductor commonly used in design and prototyping applications is the ELJ-PA121KF Inductor.An ELJ-PA121KF Inductor is an unshielded, radial leaded inductor with a ferrite core wind. It offers high interwinding capacitance, low DC resistance, and a high self-resonant frequency (SRF). It is designed for use in applications that require a low-current, high-frequency core. ELJ-PA121KF Inductors, are typically rated for 1.2µH, while their actual inductance varies from 1.1µH to 1.3µH depending upon the winding configuration.In terms of its application field, the ELJ-PA121KF Inductor is commonly used in the design of power applications such as switched mode power supplies (SMPSs), line output converters (LOCs), DC-DC converters, filter circuits, oscillators, triggers, delay lines, and RF circuits. It is also used to provide protection from electromagnetic interference (EMI) in video and data cables, as well as in filtering interference and radio frequencies in telecommunication systems. The ELJ-PA121KF Inductor also has a wide variety of applications in acoustics and audio systems, where it is used to provide low frequencies with sufficient energy, as well as to help balance the level of a signal.In terms of its working principle, the ELJ-PA121KF Inductor functions by transferring energy between electrical circuits, using the properties of electricity and magnetism. When a current is applied to a coil, a magnetic field is created around it. This magnetic field stores energy, and when the current is removed, the stored energy is dissipated. The inductance of the ELJ-PA121KF Inductor is determined by the core material, the number of windings, and the geometry of the windings. The advantage of the ELJ-PA121KF Inductor is that it is relatively inexpensive compared to other inductors. This, combined with its stability, reliability, and high current-handling capacity make it an attractive choice for use in various design applications. Additionally, it has a low profile, making it well-suited for space-constrained designs. Overall, the ELJ-PA121KF Inductor is a versatile, low-cost, low-profile component that has a wide range of applications and is suitable for use in a variety of design applications. It is a great choice for prototyping, as well as for use in audio and telecommunication systems. Thanks to its low current-handling capacity and high SRF, it has become a popular choice for use in circuits that require high-frequency filtering and EMI protection.

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