WMSIC Electronic Components

MEIHUA MHS171WDT-C2 MHS171WDT

ModelMHS171WDT-C2
Package0805
BrandMEIHUA
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MEIHUA MHS171WDT-C2
Type
MEIHUA
Minimum package
4000 编带

Technical parameters

Power
75mW
Electronic Component
Electronic Component
Electronic Component
MEIHUA
Electronic Component
MHS171WDT-C2
Electronic Component
1
Package
0805
Electronic Component
LEDDiode / LED
Electronic Component
0.024g
Electronic Component
1
LED
715mcd
LED
140°
LED
Electronic Component
Electronic Component
BM0228233702
Operating Temperature
40℃~+85℃
Current
20mA
Electronic Component
Electronic Component

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

MHS171WDT-C2 0805 白光LED 产品概述

一、产品简述

MHS171WDT-C2 是美华(MEIHUA)推出的一款0805封装白光发光二极管,采用雾状黄色透镜与侧贴(carrier tape side-feed)载带包装,设计用于高密度贴片组装与背光、指示照明等应用。典型工作条件下的额定正向电流为20mA,正向压降(Vf)约为3.65V,器件功率额定为75mW,视角宽达140°,发光强度约715mcd,工作温度范围为-40℃到+85℃。

二、主要特性

  • 0805(2.0×1.25mm)超小贴片封装,适合自动化贴装与高密度电路板
  • 白光发光,雾状黄色透镜有利于光的漫射与出光均匀性
  • 宽视角(140°),适合面照明与均匀指示场合
  • 额定正向电流20mA,发光强度高达715mcd(典型)
  • 宽工作温度范围,适应多种环境应用

三、电气与光学参数要点

  • 额定正向电流(If):20mA(建议在应用中考虑降额以延长寿命)
  • 最大耗散功率:75mW;在20mA、Vf≈3.65V时器件功耗约73mW,接近额定极限,建议实际设计中考虑限流或低电流工作(例如10–15mA)以降低热应力
  • 正向压降(Vf):约3.65V(随温度与电流略有变化)
  • 发光强度:约715mcd(典型,测试条件请参考厂方规范)
  • 发光角度:140°(大角度、漫射型光分布)

示例限流电阻计算(5V供电、If=20mA):R = (5V − 3.65V) / 0.02A ≈ 68Ω,实际选用标准阻值68Ω并按功率和容差调整。

四、封装与贴装说明

  • 封装:0805 SMD,适用于自动贴片机
  • 载带方式:侧贴,便于与常见贴片设备兼容;请在物料准备时确认贴装方向与极性
  • 透镜:雾状黄色透镜,可改善光分布并降低眩光
  • 焊接:推荐采用回流焊工艺,遵循制造商的回流曲线与峰值温度限制;避免多次重复高温回流以减少光学或电气特性退化

五、应用场景

  • 面板指示灯与状态指示
  • 仪表、消费电子与可视化指示
  • 背光源与装饰照明(需注意亮度与色温要求)
  • 车载饰件、家电指示(在符合温度与振动条件下)

六、可靠性与使用建议

  • 由于在20mA条件下器件功耗接近额定75mW,建议在需要长期或高可靠性场合采用降额使用(如10–15mA),以降低结温并延长寿命
  • 遵守静电放电(ESD)防护和湿敏防护(MSL)要求;长期储存建议密封防潮并按生产商建议回潮处理
  • 对于关键产品,请向供应商索取完整的器件数据手册和回流焊工艺参数,并进行可靠性验证(温度循环、湿热、寿命加速测试等)

七、采购与质量提示

  • 在选型与下单时确认测试条件(If、测试电流、测量距离)以确保光电参数匹配实际需求
  • 若对环保认证(如RoHS)或特定测试(如LM80色衰、光通量)有要求,请在采购前与供应商确认并索取证明文件

结语:MHS171WDT-C2 为小型、高亮度、宽视角的0805白光LED,适合多种指示与面光应用。合理的限流与热管理能显著提升稳定性与使用寿命,建议在产品设计阶段进行充分的热电与光学评估。

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