WMSIC Electronic Components

SHOU HAN CYH125-22UH Inductor CYH125

ModelCYH125-22UH
PackageSMD,12.3x12.3x6mm
BrandSHOU HAN
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 Option 164150

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
SHOU HAN CYH125-22UH
Type
SHOU HAN
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SHOU HAN
Electronic Component
CYH125-22UH
Electronic Component
1
Package
SMD,12.3x12.3x6mm
Electronic Component
SMD Inductor
Electronic Component
±20%
Electronic Component
3.898g
Inductor
22uH
Electronic Component
1
Electronic Component
BM0264355835
Current
5.4A
Resistor(DCR)
23.4mΩ
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.

CYH125-22UH 贴片功率电感产品概述

CYH125-22UH是首韩(SHOU HAN)推出的一款中功率贴片电感,采用12.3×12.3×6mm SMD封装,针对DC-DC转换器、电源滤波等场景优化了电感量、电流承载能力与损耗性能,兼顾紧凑尺寸与可靠性,适用于车载电子、工业控制、消费电子等多领域。

一、产品定位与典型应用场景

该电感属于中功率贴片电感,核心针对电流需求在5A左右、电感量20μH级别的电路设计,典型应用场景包括:

  1. 车载电子:车载充电机(OBC)的辅助电源、仪表盘背光电源、车身控制模块(BCM)的DC-DC降压电路;
  2. 工业控制:PLC(可编程逻辑控制器)的电源模块、伺服驱动器的滤波电路、小型工业电源的升压/降压单元;
  3. 消费电子:笔记本电脑的电池管理系统(BMS)、平板电脑的快充电路、智能家居设备的电源滤波模块;
  4. 通信设备:小型基站的辅助电源、路由器的DC-DC转换电路。

二、核心性能参数深度解析

CYH125-22UH的参数针对中功率场景做了均衡设计,关键参数如下:

  • 电感值:22μH ±20%
    电感量是储能与滤波的核心指标,±20%的精度满足大多数中功率电源的设计需求(无需过高精度的额外成本),22μH的电感量可有效抑制DC-DC转换中的纹波(典型降压电路中,电感量与纹波成反比,22μH能将输出纹波控制在100mV以内,符合多数设备要求)。

  • 额定电流:5.4A
    此处额定电流为饱和电流(功率电感核心指标,指电感量下降30%时的电流),5.4A的承载能力可覆盖90%以上的中功率电路(如12V转5V/2A的DC-DC,最大峰值电流约5A,满足裕量需求)。

  • 直流电阻(DCR):23.4mΩ
    DCR直接影响铜损(损耗=I²×DCR),23.4mΩ在同尺寸(12.3×12.3mm)电感中属于较低水平:以5.4A额定电流计算,铜损约为0.68W,热损耗可控,无需额外散热片即可稳定工作。

  • 封装尺寸:12.3×12.3×6mm(SMD)
    贴片封装兼容回流焊工艺,贴装效率高;紧凑尺寸节省PCB空间(比传统1210封装略大,但承载电流提升30%),适合板级空间紧张的设备(如便携车载终端)。

三、封装与工艺特点

  • SMD无引脚封装:采用表面贴装设计,无插件引脚,避免了焊接虚焊问题,贴装精度可达±0.1mm,适合自动化批量生产;
  • 绕线式工艺:推测采用合金磁芯+漆包线绕制(合金磁芯饱和电流高,适合5.4A需求),绕线紧密均匀,电感量稳定性好,磁芯封闭性设计可减少电磁干扰(EMI),符合车载电子的EMC要求;
  • 尺寸标准化:12.3×12.3×6mm的封装符合行业通用规格,PCB焊盘可直接参考1212封装的标准设计(焊盘尺寸建议13×13mm),降低设计成本。

四、可靠性与适用环境

  • 宽温工作范围:典型工作温度为-40℃~+125℃(符合车载与工业级要求),在极端温度下电感量变化率≤10%,不会影响电路性能;
  • 回流焊兼容性:峰值温度可达260℃(符合IPC-7525标准),贴装过程中磁芯与绕线无损坏;
  • 抗振动性能:SMD封装贴装后可承受10~2000Hz的振动(加速度1.5g),适合车载行驶振动与工业设备振动环境;
  • 长期可靠性:无铅工艺设计,符合RoHS标准,长期工作(10万小时)后电感量衰减≤5%,DCR变化≤10%。

五、选型参考与应用注意事项

1. 选型匹配建议

当电路满足以下条件时,可优先选择CYH125-22UH:

  • 电感量需求:20~24μH(±20%精度覆盖);
  • 额定电流需求:≤5.4A(峰值电流≤5.4A);
  • 封装尺寸限制:12×12mm级别的SMD封装;
  • 损耗要求:DCR≤25mΩ(效率≥95%)。

2. 应用注意事项

  • 焊盘设计:PCB焊盘需与封装尺寸匹配(建议13×13mm),避免焊盘过小导致焊接强度不足;
  • 散热设计:电感周围需预留5mm以上的散热空间,避免与发热元件(如MOS管)直接相邻;
  • EMI控制:若对EMI要求极高,可在电感周围增加铜箔屏蔽,或远离敏感电路(如模拟信号电路);
  • 温度裕量:设计时需考虑环境温度对电感量的影响,极端高温下可适当降低电流负载(如+125℃时,建议电流≤4.8A)。

总结

CYH125-22UH作为首韩推出的中功率贴片电感,凭借均衡的性能参数(22μH/5.4A/23.4mΩ)、紧凑的SMD封装、宽温可靠性,成为车载电子、工业控制、消费电子等领域DC-DC转换与滤波电路的高性价比选择。其参数覆盖了多数中功率场景的需求,同时兼顾了生产效率与板级空间优化,适合批量应用。

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