行业组件数据 · 2026

电感器(用于LC滤波器)

Inductor for LC filters that stores energy in a magnetic field to filter high-frequency noise in electrical circuits.

技术定义与适配语境
典型 电感器(用于LC滤波器) 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。

An inductor is a passive electronic component designed for LC (inductor-capacitor) filters, primarily used in low-pass filter configurations to attenuate high-frequency signals while allowing low-frequency signals to pass. It operates by storing energy in a magnetic field when current flows through it, creating impedance that increases with frequency. In industrial applications, it is critical for reducing electromagnetic interference (EMI), smoothing power supplies, and ensuring signal integrity in machinery and electronic systems.

组件规格

定义
An inductor is a passive electronic component designed for LC (inductor-capacitor) filters, primarily used in low-pass filter configurations to attenuate high-frequency signals while allowing low-frequency signals to pass. It operates by storing energy in a magnetic field when current flows through it, creating impedance that increases with frequency. In industrial applications, it is critical for reducing electromagnetic interference (EMI), smoothing power supplies, and ensuring signal integrity in machinery and electronic systems.
工作原理
The inductor works based on Faraday's law of electromagnetic induction. When alternating current (AC) flows through its coil, it generates a magnetic field that opposes changes in current, creating inductive reactance (XL = 2πfL). In an LC filter, the inductor combines with a capacitor to form a resonant circuit that blocks or passes specific frequency bands. For low-pass filters, the inductor's high impedance at high frequencies attenuates noise, while low frequencies pass through with minimal loss.
材料
Core: Ferritepowdered ironor air core for high-frequency applicationsWire: Copper or aluminum enameled wireInsulation: Polyurethanepolyesteror epoxy coatingHousing: Plastic or metal casing for protection and heat dissipation.
Tolerance
±5% to ±20%
Inductance
1 μH to 100 mH
DC Resistance
0.01 Ω to 10 Ω
Current Rating
0.1 A to 10 A
Frequency Range
10 kHz to 10 MHz
Temperature Range
-40°C to +125°C
标准
ISO 9001IEC 60076DIN EN 61558

行业分类与别名

电感器(用于LC滤波器) 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

Exceeding current rating->Overheating and thermal degradation->Use inductors with adequate current margin and implement thermal management
High-frequency operation beyond specified range->Core losses and reduced efficiency->Select core materials optimized for the operating frequency and monitor performance

工业生态与工程逻辑

0
Overheating due to excessive current
1
Core saturation leading to loss of inductance
2
Mechanical damage from vibration or shock
3
Insulation failure causing short circuits

合规与检测

tolerance
Inductance tolerance typically ±10% as per IEC standards, with tighter tolerances available for precision applications
test method
Testing per IEC 60076 for electrical parameters, including inductance measurement using LCR meters and thermal cycling tests for reliability.

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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 role of an inductor in a low-pass filter?

In a low-pass filter, the inductor blocks high-frequency noise by providing high impedance at those frequencies, while allowing low-frequency signals to pass through with minimal attenuation, ensuring clean power or signal output.

How do I select an inductor for an LC filter?

Select based on required inductance value, current rating, frequency range, and core material. Consider factors like saturation current, temperature stability, and physical size to match the filter's application and environmental conditions.

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URN:CNFX:ME:UNIT:INDUCTOR_FOR_LC_FILTERS_