ER1025-77JR

DC Resistance (DCR):	25 Ohm Max
Height - Seated (Max):	--
Size / Dimension:	0.095" Dia x 0.250" L (2.41mm x 6.35mm)
Supplier Device Package:	--
Package / Case:	Axial
Mounting Type:	Through Hole
Inductance Frequency - Test:	790kHz
Operating Temperature:	-55°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	8MHz
Q @ Freq:	30 @ 790kHz
Series:	ER1025
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	47mA
Tolerance:	±5%
Inductance:	240µH
Material - Core:	Ferrite
Type:	Molded
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors: ER1025-77JR

Inductors are classified as energy storage devices, where a small amount of electrical energy is stored in the form of an inductive field. Fixed inductors are used in high-frequency electronic circuits, which include oscillators and filters. The ER1025-77JR fixed inductor is one of the most popular fixed inductors in use today. This article will discuss its application field and working principle.The ER1025-77JR fixed inductor is a surface mount device (SMD) designed for use in mobile phones, radios, and other digital media applications. It features a low profile, with a height of only 0.25mm and a footprint of 1.2mm x 0.8mm, making it ideal for use in tight spaced designs. It is composed of a metal magnetic core material surrounded by a ceramic rod. Its terminal leads are made of gold-plated copper which increases its conductivity and reduces its noise level.The ER1025-77JR is designed to be used in low-frequency switching circuits and low noise environments. It is suitable for frequencies between 0Hz and 300MHz and has an inductance range of 1nH to 10uH. Its high Q factor makes it ideal for high-performance filter and oscillator applications. It also features good thermal stability, low resistance and low overcurrent absorption.The working principle of the ER1025-77JR fixed inductor is based on Faraday’s Law of induction. When an alternating magnetic field is established between two conducting loops, a potential difference is induced in each loop. This potential difference generates an electric current when the two loops are connected. The magnitude of this current is proportional to the inductance of the circuit. The ER1025-77JR utilizes this property to create high inductance values, allowing it to be used effectively in high-frequency circuits.The ER1025-77JR is ideal for use in a variety of circuits. Its small size and low-voltage DC operation make it ideal for use in mobile phones and radios. Additionally, it can be used in power supply applications, filters, and resonators, as well as in high-frequency amplifier and oscillator circuits.The ER1025-77JR fixed inductor is a versatile and reliable component. It is an invaluable tool for designers seeking to create high-performance electronic circuits. Its low-profile design and superior performance characteristics make it an ideal choice for a wide range of applications.

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