WMSIC Electronic Components

Sumida CDRH127/LDNP-220MC CDRH127

ModelCDRH127/LDNP-220MC
PackageSMD,12x12mm
BrandSUMIDA
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

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Technical data

Product details

19 specifications

Core information

Product name
Sumida CDRH127 / LDNP-220MC
Type
SUMIDA
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SUMIDA
Electronic Component
CDRH127/LDNP-220MC
Electronic Component
1
Package
SMD,12x12mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
4.273g
Inductor
22uH
Electronic Component
1
Electronic Component
BM0265592468
Current
4.7A
Resistor(DCR)
36.4mΩ
Electronic Component
Electronic Component
Electronic Component
500

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

Sumida CDRH127/LDNP-220MC 功率电感产品概述

一、产品基本定位与核心价值

CDRH127/LDNP-220MC是日本胜美达(Sumida)推出的磁胶屏蔽表面贴装功率电感,针对中功率电源电路的高密度、低损耗设计需求开发。该产品平衡了电感储能能力、电流承载容量、电阻损耗与体积尺寸,可广泛应用于消费电子、工业控制及汽车电子等领域的电源管理模块,是替代传统非屏蔽电感的优选方案。

二、关键电气与物理参数详解

2.1 电气核心参数

  • 电感值与精度:额定电感值22μH,精度±20%,满足多数电源滤波、储能电路的工程设计余量要求(如DC-DC降压电路的输出滤波电感通常需要10-33μH范围)。
  • 额定电流:4.7A(注:Sumida该系列电感额定电流为温升电流,即电感表面温度在额定环境温度下升高40℃时的最大连续工作电流),可稳定承载中功率电路的电流需求。
  • 直流电阻(DCR):仅36.4mΩ,属于同电感值、同封装产品中的低损耗水平。以4A连续电流为例,其功率损耗为(I^2R = 4^2 \times 0.0364 = 0.582W),可有效降低电源转换损耗,提升整体效率。

2.2 物理与封装参数

  • 封装类型:SMD(表面贴装),尺寸12×12mm(长×宽),厚度约7mm(符合行业标准),适配多数PCB的贴装高度要求。
  • 屏蔽类型:磁胶屏蔽结构,通过磁胶包裹磁芯减少电磁辐射,相比非屏蔽电感可降低约10-15dB的EMI干扰,满足电磁兼容(EMC)标准要求。

三、封装与结构设计特点

  1. 紧凑尺寸适配高密度布局:12×12mm的SMD封装体积小巧,可节省PCB板空间,适合笔记本电脑、平板等便携设备的小型化设计,也可用于工业控制模块的多电感并联/串联布局。
  2. 磁胶屏蔽降低干扰:磁胶屏蔽层不仅减少电感自身的电磁辐射,还能抑制外部电磁场对电感的干扰,提升电路稳定性(尤其适合对EMI敏感的通信、医疗电子设备)。
  3. 表面贴装工艺兼容性:符合IPC标准的SMD引脚设计,可适配自动化贴装生产线,提高生产效率,降低人工成本。

四、典型应用场景

CDRH127/LDNP-220MC的参数特性使其适用于以下场景:

  1. 消费电子电源:笔记本电脑、平板、智能电视的DC-DC降压模块(如CPU、内存供电电路的输出滤波)。
  2. 工业控制电源:PLC(可编程逻辑控制器)、伺服驱动器的辅助电源模块,或小型变频器的滤波电路。
  3. LED驱动电源:中功率LED路灯、室内照明的恒流驱动电路(电感储能环节)。
  4. 汽车电子辅助电源:车载充电器(OBC)的低压辅助电源、仪表盘背光电源等小功率模块(部分型号可满足-40℃~+125℃宽温要求)。

五、性能优势总结

  1. 低损耗高效能:36.4mΩ的低DCR可显著降低功率损耗,提升电源转换效率(尤其适合对能效要求严格的设备)。
  2. EMI控制优异:磁胶屏蔽结构有效减少电磁干扰,降低电路EMC整改成本。
  3. 尺寸紧凑易集成:12×12mm封装适配高密度PCB布局,满足小型化设计需求。
  4. 稳定可靠:胜美达的磁芯材料与绕线工艺确保电感值稳定,额定电流下长期工作可靠性高。

该产品是中功率电源电路中平衡性能与成本的实用选择,可覆盖多数常规电源设计的电感需求。

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