行业组件数据 · 2026

磁芯

Magnetic core is a ferromagnetic component that concentrates and guides magnetic flux in electromagnetic devices like transformers and inductors.

技术定义与适配语境
典型 磁芯 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

A magnetic core is a specialized component made from ferromagnetic materials designed to enhance magnetic flux density and efficiency in electromagnetic systems. It serves as the central element in transmitter coil assemblies, providing a controlled path for magnetic fields while minimizing energy losses through hysteresis and eddy currents. In industrial applications, magnetic cores are engineered to operate within specific frequency ranges, temperature conditions, and power levels to ensure optimal performance in energy transfer and signal transmission systems.

组件规格

定义
A magnetic core is a specialized component made from ferromagnetic materials designed to enhance magnetic flux density and efficiency in electromagnetic systems. It serves as the central element in transmitter coil assemblies, providing a controlled path for magnetic fields while minimizing energy losses through hysteresis and eddy currents. In industrial applications, magnetic cores are engineered to operate within specific frequency ranges, temperature conditions, and power levels to ensure optimal performance in energy transfer and signal transmission systems.
工作原理
Magnetic cores operate based on electromagnetic induction principles. When an alternating current flows through the coil wound around the core, it generates a varying magnetic field within the ferromagnetic material. The core's high permeability concentrates this magnetic flux, increasing inductance and coupling efficiency. The core material's magnetic properties (saturation flux density, coercivity, and permeability) determine its ability to store and transfer magnetic energy while minimizing core losses through hysteresis and eddy current effects.
材料
Ferrite (Mn-Zn or Ni-Zn compositions)powdered ironsilicon steel (electrical steel)amorphous metals (metglas)nanocrystalline alloys. Material selection depends on frequency rangepower requirementsand thermal stability needs.
Core Loss
<100 mW/cm³ at 100 kHz, 200 mT
Dimensions
OD 25mm, ID 14mm, Height 10mm
Core Material
Ferrite (Mn-Zn)
Curie Temperature
>200°C
Temperature Range
-40°C to +120°C
Operating Frequency
20 kHz - 1 MHz
Initial Permeability
2300 μi ±25%
Saturation Flux Density
510 mT at 25°C
标准
ISO 9001IEC 62368-1ASTM A753

行业分类与别名

磁芯 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Operating beyond saturation flux density->Reduced inductance, increased distortion, overheating->Implement current limiting circuits, use cores with higher saturation levels, add temperature sensors
Mechanical stress during assembly->Core cracking, air gap variations, magnetic path disruption->Use proper mounting fixtures, apply controlled torque, implement visual inspection protocols
High frequency operation with unsuitable material->Excessive core losses, thermal runaway, efficiency drop->Select appropriate ferrite grade, implement thermal management, use frequency compensation circuits

工业生态与工程逻辑

0
Core saturation leading to performance degradation
1
Thermal runaway due to excessive core losses
2
Mechanical cracking from thermal stress
3
Impedance mismatch causing reflection losses

合规与检测

tolerance
±5% on magnetic parameters, ±0.1mm on critical dimensions
test method
Impedance analyzer measurement (LCR meter), BH curve analysis, thermal cycling tests, vibration testing per MIL-STD-810

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the main function of a magnetic core in a transmitter coil assembly?

The magnetic core concentrates and guides magnetic flux to increase inductance, improve coupling efficiency, and reduce electromagnetic interference in transmitter systems.

How do I select the right magnetic core material for my application?

Select based on operating frequency (ferrite for high frequency, silicon steel for low frequency), power requirements, temperature stability needs, and core loss specifications.

What causes core losses in magnetic components?

Core losses primarily result from hysteresis (energy lost during magnetic domain realignment) and eddy currents (circulating currents induced in the core material).

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CNFX Industrial Component Index · 电气设备制造

数据基础

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初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

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URN:CNFX:ME:UNIT:MAGNETIC_CORE