Product Specification

Magnetic Ring 4.7uH±20% Vertical Wound Double Wire Ferrite Toroidal Inductor

1.Product Description

A Ferrite Toroidal Inductor is a crucial electronic component widely used in various electrical and electronic circuits. It consists of a toroidal - shaped core made of ferrite material, which has excellent magnetic properties. The toroidal shape provides a closed - loop magnetic path, significantly reducing magnetic flux leakage compared to other core shapes. This results in higher inductance values and more efficient magnetic coupling. The winding of conductive wire is tightly wound around the toroidal core. The number of turns, wire gauge, and winding pattern are carefully designed according to the specific application requirements. Ferrite toroidal inductors are highly valued for their ability to store and release electrical energy in the form of a magnetic field. They are commonly used in power supply filters to suppress electromagnetic interference (EMI), blocking high - frequency noise while allowing the desired low - frequency signals to pass through. In addition, they play a vital role in RF (radio - frequency) circuits for impedance matching, signal filtering, and resonance tuning. Their compact size, high inductance per unit volume, and low - loss characteristics make them an ideal choice for modern electronic devices, contributing to the overall performance, stability, and miniaturization of these systems.

2.Features

1. High magnetic permeability and high inductance
--Ferrite materials have high magnetic permeability, which enables ferrite ring inductors to achieve high inductance in a smaller volume. High magnetic permeability is like building a smooth and unobstructed highway for magnetic field lines, allowing them to efficiently concentrate inside the magnetic core and enhancing the resistance of inductance to current changes. For example, in switch mode power supply circuits, this high inductance helps to stabilize the current, ensure the stability of power output, and provide pure and stable power supply for various electronic devices.

2. Low hysteresis loss and low eddy current loss
--Low hysteresis loss: The narrow hysteresis loop of ferrite materials means that less energy is consumed during the magnetic domain flipping process under alternating magnetic fields, resulting in low hysteresis loss. This characteristic enables inductors to effectively reduce energy waste and improve circuit efficiency in high-frequency circuits. For example, in the RF circuit of wireless communication devices, low hysteresis loss can avoid signal distortion caused by energy loss during transmission, ensuring the accuracy and integrity of the signal.

--Low eddy current loss: Ferrite has a high electrical resistivity, which can significantly suppress the generation of eddy currents and thereby reduce eddy current loss. When an alternating magnetic field passes through a magnetic core, lower eddy current losses can reduce core heating and extend the lifespan of the inductor. In some electronic devices that require long-term continuous operation, such as server power supplies, low eddy current losses help maintain stable inductance performance and ensure reliable operation of the equipment.

3. Advantages of circular structure
--Closed magnetic circuit: The annular structure forms a closed magnetic circuit, with almost no magnetic flux leaking into the external space. Compared with other shapes of inductors (such as E-type core inductors), this closed magnetic circuit design enables efficient circulation of magnetic field energy inside the core, greatly improving magnetic coupling efficiency. In circuit applications such as transformers and filters, high magnetic coupling efficiency can achieve more efficient energy transmission and signal processing, reducing energy loss and signal interference.

--Compact space utilization: The circular structure has a high space utilization rate and can wind coils with more turns in a limited space. This not only helps to further increase the inductance, but also makes the ferrite ring inductor more compact in volume, suitable for use in space limited electronic devices. For example, in miniaturized portable devices such as smartphones and tablets, their compact size can meet the requirements of circuit board layout and leave more space for other electronic components.

3.Product Advantages