WMSIC Electronic Components

MEIHUA MHT194RGCT

ModelMHT194RGCT
Package0606
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MEIHUA MHT194RGCT
Type
MEIHUA
Minimum package
2000 编带

Technical parameters

Power
60mW
Electronic Component
Electronic Component
Electronic Component
MEIHUA
Electronic Component
MHT194RGCT
Electronic Component
1
Package
0606
Electronic Component
567.5nm~575.5nm;622nm
Electronic Component
LEDDiode / LED
Electronic Component
0.025g
Electronic Component
1
LED
72mcd;18mcd
LED
130°
LED
Electronic Component
Electronic Component
BM0228233744
Electronic Component
575nm;639nm
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.

MHT194RGCT 产品概述

一、产品简介

MHT194RGCT 是美华(MEIHUA)出品的一款小型表面贴装(SMD)发光二极管,封装尺寸为 0606(约 1.6 × 1.5 mm)。该器件为双色LED,发光颜色涵盖红色与黄绿色,透镜为无色透明,光束发散角度宽达 130°,适合对视角和均匀照明有要求的微型指示和面板照明场景。工作温度范围为 -40℃ 至 +85℃,适应常见消费和工业环境。

二、主要规格参数

  • 品牌:MEIHUA(美华)
  • 型号:MHT194RGCT
  • 封装:0606(SMD,1.6 × 1.5 mm)
  • 发光颜色:红色、黄绿色(双色)
  • 峰值波长:红色段约 622–639 nm(峰值约 639 nm);黄绿色段 567.5–575.5 nm(峰值约 575 nm)
  • 正向压降(Vf):典型 2.3 V(测试条件通常为 5 mA)
  • 正向工作电流:5 mA(典型)
  • 功率(LED 芯片允许最大功率):60 mW
  • 发光强度:典型值 72 mcd 与 18 mcd(视颜色和驱动条件而定)
  • 视角:130°(宽视角)
  • 工作温度:-40℃ ~ +85℃
  • 透镜颜色:无色透明

三、电气与光学特性说明与计算示例

  • 功率与热:在典型驱动条件下(Vf ≈ 2.3 V,If = 5 mA),LED 自身功率消耗约为 Pd = Vf × If ≈ 2.3 V × 0.005 A = 11.5 mW,远低于标称 60 mW 上限,但仍需注意PCB热散与长期可靠性。
  • 驱动限流电阻计算(示例):
    • 当电源为 3.3 V:R = (Vcc − Vf) / If = (3.3 − 2.3) / 0.005 = 200 Ω(可选标准值 200 Ω 或 220 Ω)
    • 当电源为 5 V:R = (5 − 2.3) / 0.005 = 540 Ω(可选标准值 560 Ω)
    • 电阻功耗示例(5 V, 560 Ω):I ≈ 4.82 mA,P_R ≈ I^2 × R ≈ 0.013 W(易用 1/8 W 或 1/4 W 电阻满足)
  • 光学输出:提供的发光强度为 72 mcd 与 18 mcd(典型),具体数值随颜色、测试条件(If)、和量测角度而变化。130° 的宽视角使得该LED用于面板或指示灯时视觉均匀性较好。

四、封装特性与安装建议

  • 封装尺寸小,适合高密度贴片布局。建议按制造商推荐的SMT焊盘与回流焊工艺进行贴装,保证焊点完整与热传导路径良好。
  • 焊接:采用无铅回流工艺时,应遵循元件的最高温度与厂家回流曲线建议(如无具体数据,参考常见SMD回流温度曲线并尽量缩短高温停留时间)。
  • 机械:避免在回流后对LED施加过大机械应力,取放及检修时注意勿用尖硬工具直接接触透镜区域。
  • 防静电:LED 属半导体器件,装配和测试过程中应做好 ESD 保护。

五、典型应用场景

  • 仪表/面板指示灯、状态指示(网络设备、家用电器、办公设备)
  • 可穿戴设备或小型终端指示(受限空间、低功耗需求)
  • 背光或标示照明(要求宽视角和颜色区分)
  • 工业控制指示(在工作温度范围内稳定工作)

六、可靠性与使用注意事项

  • 在高温或长时间满功率工作时应注意热管理与必要的电流降额。
  • 该器件规格给出的工作温度上限为 +85℃,超过该范围的环境或需额外验证。
  • 若用于对亮度一致性要求高的场合,应在批量采购时进行颜色和亮度分选(BIN)。
  • 储存:避免潮湿环境,若为托盘或卷带包装,开卷后如需回流焊接建议遵循防潮等级(MSL)要求并在规定时间内贴装。

七、选型建议与小结

MHT194RGCT 以其微小的 0606 封装、双色发光能力和 130° 宽视角,适合空间受限且需清晰指示的电子产品。若设计要求低功耗(典型 5 mA 驱动)、宽视角与双色指示,此器件为合适选择。选型时建议确认所需颜色段的发光强度(72 mcd/18 mcd)是否满足视觉/光学需求,并在PCB设计阶段预留合适焊盘与热散路径以保证长期可靠性。若有更严格的光电参数或回流曲线要求,可联系供应商索取完整数据手册与检验报告。

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