WMSIC Electronic Components

MEIHUA MHT155GRCT

ModelMHT155GRCT
PackageSMD-4P,3.2x2.7mm
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 MHT155GRCT
Type
MEIHUA
Minimum package
2000 编带

Technical parameters

Power
60mW
Electronic Component
Electronic Component
Electronic Component
MEIHUA
Electronic Component
MHT155GRCT
Electronic Component
1
Package
SMD-4P,3.2x2.7mm
Electronic Component
632nm~640nm;567.5nm~575.5nm
Electronic Component
LEDDiode / LED
Electronic Component
0.051g
Electronic Component
1
LED
45mcd
LED
120°
LED
Electronic Component
Electronic Component
BM0228233749
Electronic Component
575nm;658nm
Operating Temperature
40℃~+85℃

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

MHT155GRCT 产品概述

一、产品简介

MHT155GRCT 为美华(MEIHUA)推出的一款小型贴片双色发光二极管,封装为 SMD-4P,尺寸 3.2×2.7mm,透明无色透镜设计。器件集成红色与黄绿色发光芯片,可用于状态指示、面板指示、背光点亮等需要双色或混色显示的场合。工作温度范围宽 (-40℃ 至 +85℃),适应一般工业与消费类电子环境。

二、主要技术参数

  • 发光颜色:红色 / 黄绿色(双色)
  • 波长范围:红色 632–640 nm;黄绿色 567.5–575.5 nm
  • 峰值波长(典型):红色 658 nm;黄绿色 575 nm
  • 正向电流(If):推荐 20 mA(最大值请参考厂方完整规格)
  • 正向压降(Vf):1.7 V – 2.4 V(随颜色与电流略有变化)
  • 功率:60 mW(光功率或器件允许耗散上限,建议参考数据手册)
  • 发光强度:45 mcd(典型值,通常在 If=20 mA 测试)
  • 发光角度:120°(宽视角)
  • 透镜:无色透明透镜
  • 封装尺寸:SMD-4P,3.2×2.7 mm
  • 工作温度:-40℃ 至 +85℃

三、光学与电气特性说明

MHT155GRCT 提供明显的双色视觉效果:黄绿色用于高亮度、易辨识的指示,红色用于警示或状态标识。典型发光强度 45 mcd 为 20 mA 驱动下的测量值;若需更长寿命或更低功耗,可采用降流工作(如 5–10 mA),亮度按电流近似线性下降。限流电阻计算公式:R = (Vs − Vf) / If。举例:若 Vs=5 V,取 Vf≈2.0 V,If=20 mA,则 R≈150 Ω,电阻耗散功率 P=(Vs−Vf)×If≈60 mW,应选用额定功率合适的电阻并留有安全裕度。

四、封装与安装建议

  • 封装为 SMD-4P,建议按厂家提供的贴片尺寸(PCB land pattern)设计焊盘以保证焊接可靠性与热散。
  • 推荐采用标准回流焊工艺,遵循器件热限及推荐回流曲线,避免超温超时导致芯片性能下降。
  • 贴装后避免长时间高温或潮湿环境存放,未贴片器件建议按防潮等级保存。
  • 建议在设计时预留散热路径并控制周围焊盘铜箔面积以利热量分散。

五、典型应用场景

  • 仪器仪表与控制面板的状态指示灯
  • 家电、消费电子的功能指示或通知灯
  • 交通/安防设备中的信号指示(非关键安全光源)
  • 背光点阵、装饰照明与双色提示灯

六、可靠性与注意事项

  • ESD 防护:LED 对静电敏感,装配与测试应采取静电防护措施(接地手环、离子风等)。
  • 驱动与散热:长期在高电流、高环境温度下使用需降流或采取散热改进,以免加速老化。
  • 引脚与电路配置:产品为双色封装,可能为共阴或共阳结构,具体引脚定义请参照出厂引脚图纸与数据手册,避免误接导致损坏。
  • 测试与检验:出货前建议按实际应用电流与温度条件做光学与电气验收测试,确认亮度与色坐标符合要求。

如需更详细的引脚图、回流焊温度曲线或完整电气参数(最大额定值、波长公差、光强分布曲线等),建议索取 MHT155GRCT 的完整数据手册或联系 MEIHUA 技术支持,以确保在目标应用中获得最佳性能与可靠性。

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