2890R-18H Allicdata Electronics
Allicdata Part #:

2890R-18H-ND

Manufacturer Part#:

2890R-18H

Price: $ 2.13
Product Category:

Inductors, Coils, Chokes

Manufacturer: API Delevan Inc.
Short Description: FIXED IND 8.2UH 555MA 1.4 OHM TH
More Detail: 8.2µH Unshielded Molded Inductor 555mA 1.4 Ohm Max...
DataSheet: 2890R-18H datasheet2890R-18H Datasheet/PDF
Quantity: 1000
800 +: $ 1.93640
Stock 1000Can Ship Immediately
$ 2.13
Specifications
DC Resistance (DCR): 1.4 Ohm Max
Height - Seated (Max): --
Size / Dimension: 0.280" Dia x 0.900" L (7.11mm x 22.86mm)
Supplier Device Package: --
Package / Case: Axial
Mounting Type: Through Hole
Inductance Frequency - Test: 7.9MHz
Operating Temperature: -55°C ~ 125°C
Ratings: --
Frequency - Self Resonant: 68MHz
Q @ Freq: 60 @ 7.9MHz
Series: 2890R
Shielding: Unshielded
Current - Saturation: --
Current Rating: 555mA
Tolerance: ±3%
Inductance: 8.2µH
Material - Core: Phenolic
Type: Molded
Part Status: Active
Packaging: Tape & Reel (TR) 
Description

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Fixed inductors are commonly seen in power electronics circuits. They use some sort of core material, usually metal, to wrap around a coil of wire. This creates a magnetic field. The inductor helps to regulate the voltage in a circuit by releasing energy only when the current in the circuit reaches a certain level. The 2890R-18H is just such an inductor.

The 2890R-18H is a radial leaded capacitor. It is an integrated structure, which features low loss, good high frequency performance, high reliability and high efficiency. The inductor is rated for 25V and has an excellent self-resonant frequency. It is suitable for use in high-end consumer electronics, industrial applications and medical systems. It has a small size and can be easily installed.

The working principle of the 2890R-18H is based on Faraday’s law of induction. When an alternating current flows through a coil of wire, it produces a changing magnetic field, which in turn induces an emf in the coil. This emf is known as the inductive voltage and is proportional to the rate of change of the magnetic field. Thus, when the 2890R-18H is used, the current must be constant so that a steady magnetic field is produced, resulting in a constant inductive voltage.

The 2890R-18H is most commonly used in high-end consumer electronics such as laptops, mobile phones, gaming consoles, and other handheld electronics. Its high efficiency and reliability make it particularly suitable for these applications. Additionally, it can also be used in industrial systems as an energy source and for power conversion. In medical systems, the 2890R-18H is used for signal conditioning and protection.

In conclusion, the 2890R-18H is an efficient and reliable fixed inductor used in many power electronics circuits. It is suitable for use in high-end consumer electronics, industrial systems and medical systems. Its working principle is based on Faraday’s law of induction and it produces a constant inductive voltage.

The specific data is subject to PDF, and the above content is for reference

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