WMSIC Electronic Components

MEIHUA MHT193CGCT

ModelMHT193CGCT
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MEIHUA MHT193CGCT
Type
MEIHUA
Minimum package
5000 编带

Technical parameters

Power
60mW
Electronic Component
Electronic Component
Electronic Component
MEIHUA
Electronic Component
MHT193CGCT
Electronic Component
1
Package
0603
Electronic Component
569nm
Electronic Component
LEDDiode / LED
Electronic Component
0.015g
Electronic Component
1
LED
11.2mcd
LED
130°
LED
Electronic Component
Electronic Component
BM0228233746
Operating Temperature
40℃~+85℃
Current
5mA

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

MHT193CGCT 产品概述

一、产品简介

MHT193CGCT 是美华(MEIHUA)推出的一款高性价比表面贴装发光二极管(SMD LED),采用0603(1608公制)封装,发光颜色为黄绿色(波长569 nm),透镜为无色透明,可实现宽视角、高对比的指示显示。该器件面向消费电子、仪表、通信设备等需要小尺寸、低功耗指示光源的应用场景,兼具稳定的光学输出与良好的可装配性。

二、主要性能参数

  • 发光颜色:黄绿色(569 nm)
  • 发光强度:11.2 mcd(典型值,测试条件通常为 If = 5 mA)
  • 正向电流(推荐工作电流):5 mA
  • 正向压降(Vf):约 2.2 V(典型)
  • 最大功率耗散:60 mW
  • 发光角度:130°(典型)
  • 工作温度范围:-40 ℃ 至 +85 ℃
  • 封装形式:0603(SMD),无色透明透镜
  • 包装与品牌:MEIHUA(美华),通常卷带包装(Reel/Tape)

三、光学与电气特性说明

MHT193CGCT 的中心波长 569 nm 属于黄绿色区域,视觉敏感度较高,在相同电流下可获得良好的视觉亮度。透镜为透明无色设计,结合 130° 的宽视角,适合面板指示和侧面可见的状态显示。标称发光强度 11.2 mcd 为典型值,通常以 If=5 mA 测试,实际光强会随驱动电流、温度及生产批次略有变化。

电气方面,器件在推荐工作电流 5 mA 下运行,正向压降约 2.2 V。器件标明的功率耗散 60 mW 可用来估算理论上允许的峰值电流(If_max ≈ 60 mW / 2.2 V ≈ 27 mA),但该值为基于功率限值的理论计算,长期工作或频繁脉冲在此电流水平会影响寿命和一致性,因此不建议将其作为常规驱动电流。

四、封装与安装建议

  • 封装:0603 小尺寸 SMD,适配主流贴片机、回流焊工艺。0603 尺寸有利于高密度 PCB 设计,但需注意锡膏印刷与回流温度曲线控制。
  • 焊接:建议使用无铅回流工艺,遵循 JEDEC 推荐的无铅回流曲线峰值温度(典型不超过 260 ℃,并控制加热/冷却速率)。
  • ESD 与搬运:作为半导体元件,需在 ESD 保护环境中操作(佩戴腕带、使用防静电台面等)。
  • 焊盘与布局:推荐使用标准 0603 焊盘尺寸与过孔布局,留有足够的铜面积以利散热和焊点强度,同时避免直接在 LED 下方布设大面积焊盘以防焊接应力。
  • 包装与存储:通常采用卷带包装,开封后如非立即使用,建议在干燥柜中保存;如长时间暴露于高湿环境,建议返烘处理后再进行回流焊接。

五、典型驱动与参考电路

LED 驱动方法简单,通常采用限流电阻串联方式:R = (Vcc - Vf) / If。举例:

  • 以 3.3 V 电源、If = 5 mA 为例:R ≈ (3.3 - 2.2) / 0.005 = 220 Ω
  • 以 5 V 电源、If = 5 mA 为例:R ≈ (5 - 2.2) / 0.005 = 560 Ω

若需更精确的恒流驱动和亮度一致性控制,可采用小型恒流源或 LED 驱动 IC,特别是在多灯串并联或要求脉冲调光的场合。

六、典型应用场景

  • 消费类电器面板指示(如路由器、电视机、音响指示灯)
  • 可穿戴设备与便携终端的状态指示
  • 工业与医疗仪器的面板提示灯
  • 键盘/按钮背光及信号指示
  • 物联网设备、传感器模块的状态显示

七、选型与可靠性注意事项

  • 在选型时,请核对目标应用的环境温度与长期可靠性要求:虽然器件工作温度为 -40 ℃ 至 +85 ℃,但高温环境下 LED 光输出与寿命会下降,建议合理退让电流并进行寿命评估。
  • 对亮度一致性有严格要求的应用,应与供应商协商提供分级(bin)信息或进行筛选。
  • 如需用于汽车、航天等更苛刻环境,请确认是否满足相应认证与更高温等级的可靠性测试。
  • 建议在批量采购前索取样品并在目标工艺与使用条件下做可靠性测试(热循环、湿热、焊接耐受性等)。

总结:MHT193CGCT 以其小型 0603 封装、黄绿色 569 nm 发光与宽视角设计,适合空间受限且要求低功耗指示的各类电子设备。合理的限流与焊接工艺控制可以确保其稳定的光学输出与长期可靠性。若需器件详细电气光学曲线、封装尺寸图或分级信息,建议联系 MEIHUA(美华)或授权代理获取完整规格书与测试数据。

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