WMSIC Electronic Components

MEIHUA MHT192UYCT

ModelMHT192UYCT
Package0603
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MEIHUA MHT192UYCT
Type
MEIHUA
Minimum package
4000 编带

Technical parameters

Power
95mW
Electronic Component
Electronic Component
Electronic Component
MEIHUA
Electronic Component
MHT192UYCT
Electronic Component
1
Package
0603
Electronic Component
586nm~594nm
Electronic Component
LEDDiode / LED
Electronic Component
0.019g
Electronic Component
1
LED
600mcd
LED
120°
LED
Electronic Component
Electronic Component
BM0228233742
Electronic Component
591nm
Operating Temperature
35℃~+85℃

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

MHT192UYCT(0603)产品概述

一、产品简介

MHT192UYCT 是 MEIHUA(美华)推出的一款高亮度、微小封装的黄色发光二极管(LED),采用 0603 表面贴装封装,适用于空间受限但对指示性或背光要求较高的电子产品。该器件以稳定的光学性能和可靠的电气特性,常被用于指示灯、按键背光、仪表盘及小型显示模块等场景。

二、主要参数概览

  • 发光颜色:黄色
  • 峰值波长:591 nm(波长范围 586–594 nm)
  • 正向电压(Vf):2.6 V(典型,If = 20 mA)
  • 正向电流(If):20 mA(典型工作电流)
  • 功率:95 mW(器件最大功率耗散指标)
  • 发光强度:600 mcd(在 20 mA 下的典型光强)
  • 发光角度:120°(半功率角宽,视觉上属宽视角)
  • 透镜颜色:无色透明透镜(提供较纯净的色光输出)
  • 工作温度:-35 ℃ ~ +85 ℃
  • 封装:0603(约 1.6 mm × 0.8 mm,标准 SMD)

三、光学特性与视觉表现

MHT192UYCT 的峰值波长集中在 591 nm,属于暖黄色到正黄之间,视觉上显得柔和且辨识度高。600 mcd 的典型发光强度在微小封装中属于较高水平,配合 120° 的视角使其在广角可视性上表现良好,适合做面板指示、状态提示及需要广视角照明的小尺寸区域。透明透镜有利于光色纯净度,但在需要扩散效果时可结合表面罩或光学膜使用。

四、电气特性与驱动建议

  • 推荐工作电流:20 mA(连续工作)。若需延长寿命或降低发热,可采用 10–15 mA 的弱驱以降低光强并提高可靠性。
  • 正向电压(典型):2.6 V,实际电路设计请以该值为参考并考虑容差。
  • 电流限流:必须使用恒流驱动或串联限流电阻。限流电阻计算示例(以理想 Vf=2.6V、If=20mA 为例):
    • 3.3 V 供电:R = (3.3 − 2.6) / 0.02 ≈ 35 Ω(常用 33 Ω 或 39 Ω)
    • 5 V 供电:R = (5 − 2.6) / 0.02 = 120 Ω
    • 12 V 供电(多并联分支):R = (12 − 2.6) / 0.02 = 470 Ω
  • 功率考虑:器件给定最大耗散 95 mW;在 20 mA、Vf≈2.6 V 时,LED 本身消耗约 52 mW(2.6 V × 20 mA),在正常散热条件下属于安全范围,但仍需注意高温环境下的热管理与电流 derating。
  • 驱动方式:对颜色一致性及亮度一致性要求较高的应用,建议采用恒流驱动或配对电流源;对闪烁或指示应用,可采用脉冲驱动,但应控制占空比及峰值电流,避免超出器件脉冲额定值。

五、机械、装配与可靠性要点

  • 封装尺寸:0603,适合自动化贴装和回流焊工艺。
  • 安装与焊接:建议使用标准 SMD 回流焊工艺,避免长时间超高温暴露。为确保良好焊点与可靠性,建议遵循器件或生产商提供的回流曲线(通常峰值不超过 260 ℃、短时间)。
  • ESD 与静电保护:LED 属静电敏感元件,生产、搬运及贴装过程中应采取静电防护措施。
  • 环境与耐久性:工作温度范围 -35 ℃ 到 +85 ℃,适用于多种室内及部分户外设备(需考虑湿度与封装防水要求时另行处理)。

六、典型应用

  • 面板指示灯、状态指示(电源、工作指示)
  • 仪器仪表、工业控制指示灯
  • 消费电子按键背光、微型指示模块
  • 微型标识和装饰照明(需匹配透镜或扩散器)

七、选型与注意事项

  • 在高温或高环境湿度场景下,建议适当降低工作电流并做好封装保护以延长寿命。
  • 若需要色彩一致性,建议从相同批次采购,或在设计时做色容差评估。
  • 对于长线寿命或高可靠性产品,建议先做热循环和老化测试验证工作条件下的亮度衰减与颜色漂移。
  • 设计电路时留足限流与防反接保护,避免超过最大逆向电压或长时间反向偏置。

总结:MHT192UYCT(0603)以小尺寸、高亮度和广视角为优势,适合对空间和视觉效果有严格要求的指示与背光应用。正确选用驱动方式、良好散热与装配工艺能保证其在实际产品中的稳定性与寿命。

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