T106125 90uH Magnetic Ring Inductor High Current Ring Inductor
Common Mode Coil
1.Product Description
90uH Magnetic Ring Inductor, also known as High Current Ring
Inductor or Common Mode Coil, is a highly specialized passive
electronic component. With an inductance value of 90 microhenries (uH), this magnetic
ring inductor is designed to handle high - current applications
while efficiently suppressing common - mode noise. Its toroidal core, usually made of high - permeability magnetic
materials like ferrite, provides a closed - loop magnetic path that
minimizes magnetic flux leakage, enhancing energy storage and
conversion efficiency. In high - current scenarios, it maintains stable inductance
performance, ensuring smooth current flow and reducing power
losses. As a common - mode coil, it plays a crucial role in filtering out
unwanted common - mode interference signals in power lines and
signal transmission cables, improving the electromagnetic
compatibility (EMC) of the circuit. This makes it widely applicable in power supplies, motor drives,
communication systems, and other electronic equipment, where both
high - current handling and effective noise suppression are
essential for optimal system operation.Here are some of the main application areas:
1. Power circuit: It can be used for filtering and energy storage
in various power adapters and switch mode power supplies. As an
energy storage component, it can stabilize the output current and
ensure the stability of the power output when the input voltage
fluctuates or the load changes. At the same time, it can
effectively filter out high-frequency noise in the power supply,
reduce power ripple, and provide pure DC power for the backend
circuit. For example, in computer power supplies, it can help
stabilize output voltages such as 12V and 5V, reducing the impact
of voltage fluctuations on computer hardware.
2. Motor drive circuit: In industrial motors, automotive motors,
and other drive circuits, this inductor can be used to limit the
rate of current rise and prevent damage to the circuit caused by
surge currents during motor start-up. In addition, it can also
suppress electromagnetic interference generated during the
operation of the motor, improving the reliability and stability of
the motor drive system. For example, in the motor drive system of
electric vehicles, it helps to protect power devices and reduce the
impact of electromagnetic interference on onboard electronic
equipment.
3. Communication system: It can be used for impedance matching and
filtering in RF circuits of communication devices such as mobile
phones and base stations. By selecting the appropriate inductance
value, efficient transmission of RF signals can be achieved,
reducing signal reflection and loss. At the same time, it can
filter out clutter signals within the communication frequency band,
improving signal quality and the anti-interference ability of the
communication system. For example, in the antenna matching circuit
of a mobile phone, it helps optimize the radiation efficiency of
the antenna and improve the communication performance of the phone.
4. Electromagnetic compatibility (EMC) design: In the EMC design of
electronic devices, as a common mode coil, it can effectively
suppress common mode interference current. When the device is
subjected to external electromagnetic interference or internal
electromagnetic interference, the common mode coil can convert the
common mode interference into differential mode interference, and
then filter it out through a filtering circuit, thereby improving
the electromagnetic compatibility of the device and meeting
relevant electromagnetic radiation and anti-interference standards.
For example, in industrial automation equipment, it can prevent the
equipment from generating electromagnetic interference to the
surrounding environment, while improving the equipment's own
anti-interference ability to ensure stable operation in complex
electromagnetic environments.
2.Performance Characteristics
| Performance Characteristics | Details |
| High Inductance Value | With an inductance of 90uH, it provides strong inductive reactance,
effectively suppressing current changes. Ideal for circuits
requiring stable current output, it presents high impedance to high
- frequency signals in AC circuits, enabling excellent filtering
performance. |
| Stable Inductance | The toroidal structure forms a closed magnetic circuit, minimizing
magnetic flux leakage. This ensures the inductance value remains
stable under various operating conditions, guaranteeing consistent
circuit performance. |
| High Current - Carrying Capacity | Designed as a high - current inductor, it uses low - resistance,
highly conductive wires for windings, reducing heat generation and
power loss. The magnetic core material has a high saturation flux
density, preventing saturation even under large currents and
maintaining normal operation. |
| Effective Common - Mode Noise Suppression | As a common - mode coil, it excels at suppressing common - mode
interference signals. When common - mode interference currents pass
through, the magnetic fields on both sides of the magnetic ring
stack up, creating high impedance for common - mode signals and
attenuating them. Normal differential - mode signals are hardly
affected as the magnetic fields on both sides cancel each other
out, enhancing the circuit's EMC. |
| Compact Design | The toroidal shape offers a compact form factor, occupying less
space on the circuit board compared to other inductors. This makes
it suitable for integration into miniaturized and high - density
electronic devices. |
| Cost - effectiveness | Thanks to mature manufacturing processes, magnetic ring inductors
are cost - controllable. They can meet multiple performance
requirements while maintaining high cost - effectiveness, making
them applicable to a wide range of cost - sensitive electronic
products and industrial applications. |
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4.Company Profile
