Qingsan EMI Filter Module Recommendations: Your High-Frequency Power Supplies 青山EMI滤波模块:为您的高频电源保驾护航

2026-03-19 15:06

Qingsan EMI Filter Module Recommendations: Your High-Frequency Power Supplies

青山EMI滤波模块:为您的高频电源保驾护航

产品介绍


大家好,今天推荐几款青山EMI滤波模块。

QSUF58V03AS ,QSUF58V05ASC,QSUF58V18ASD几款产品是专为高频开关型 DC-DC 电源模块优化的 EMI 滤波模块,具备优异的共模与差模噪声抑制能力,适用于各类电源输入/输出线路的噪声滤波,具有不同的电流(3A,5A,18A)。模块采用紧凑型封装,可轻松集成于印刷电路板,适用于自然对流或强制通风环境,外壳工作温度范围广(-40℃ 至 +125℃),满足严苛的工业与通信应用需求。

The QSUF58V03AS, QSUF58V05ASC and QSUF58V18ASD are specialized EMI filter modules optimized for high-frequency switching DC-DC power modules. These modules deliver superior common-mode and differential-mode noise suppression and are suitable for noise filtering in diverse power input/output circuits, with current ratings of 3A, 5A, and 18A respectively. Featuring compact packaging, they integrate seamlessly onto printed circuit boards (PCBs) and in both natural convection and forced-air cooling environments. With an extended case operating temperature range (-40°C to +125°C), they meet stringent industrial and telecommunications application requirements.


主要特性


01

High-Efficiency Noise Suppression

  • 专为抑制高频传导噪声设计,具备高插入损耗

    Designed specifically to suppress high-frequency conducted noise with high insertion loss.

    共模插入损耗:≥45 dB @ 1MHz

    Common-mode insertion loss: ≥45 dB @ 1 MHz

  • 差模插入损耗:≥65 dB @ 1MHz

    Differential-mode insertion loss: ≥65 dB @ 1 MHz

02

Robust Reliability

  • 最大额定电流:3A,5A,18A

    Maximum rated current: 3A, 5A, 18A

  • 支持连续直流输入电压:最高 58V

    Continuous DC input voltage support: up to 58V

  • 宽工作温度范围(-40℃ 至 +125℃),适应恶劣环境

    Wide operating temperature range (-40°C to +125°C), suitable for harsh environments

03

Compact and Easy Integration

  • 小型化封装

    Miniaturized package design

  • 可直接安装于 PCB,支持自动化焊接工艺

    Direct PCB mounting compatible with automated soldering processes

04

International Compliance

  • 满足 FCC、CISPR、VCCI 等标准

  • Meets FCC, CISPR, VCCI, and other standards

  • 适用于 CE、ETSI 等规范要求,助力产品快速过认证

  • Supports CE and ETSI specifications, accelerating product certification


产品优势


1


Addresses EMI challenges in high-frequency power modules. Ideal for high-density, high-frequency switching power modules, effectively mitigating common-mode and differential-mode noise caused by compact layouts, high capacitance in planar transformers, and metal substrate coupling.

2


Simplifies system EMI design. Modular architecture eliminates complex external filter circuits. When combined with recommended layouts, it significantly reduces conducted noise and streamlines overall EMI debugging.

3


Supports various cooling environments. Compatible with natural convection or forced-air cooling scenarios, accommodating varying power and temperature rise requirements.


典型应用场景



  • Power filtering in telecommunications equipment

  • Computer and server power modules

  • Industrial power systems

  • Input/output filtering for high-frequency DC-DC converters

  • Electronic products requiring compliance with CISPR/FCC Class B standards


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