WMSIC Electronic Components

MEIHUA MHLA3029EGTD

ModelMHLA3029EGTD
PackageSIP-3-2.54mm
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 MHLA3029EGTD
Type
MEIHUA
Minimum package
1000 袋

Technical parameters

Power
60mW
Electronic Component
Electronic Component
Electronic Component
MEIHUA
Electronic Component
MHLA3029EGTD
Electronic Component
1
Package
SIP-3-2.54mm
Electronic Component
626nm;572nm
Electronic Component
LEDDiode / LED
Electronic Component
0.229g
Electronic Component
1
LED
4.2mcd;8.5mcd
LED
150°
LED
Electronic Component
Electronic Component
BM0226069599
Electronic Component
645nm;562nm
Operating Temperature
25℃~+85℃

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

MHLA3029EGTD 产品概述

一、产品简介

MHLA3029EGTD 是 MEIHUA(美华)出品的一款双色发光二极管封装器件,采用 3mm 圆形透镜灯头与 SIP-3-2.54mm 插针封装,器件内含两颗发光二极管并采用共阳极配置。该器件提供红色与黄绿色两种发光色,视角宽(150°),适合做面板指示、信号显示与一般照明指示用途。

二、主要电气与光学参数(典型值)

  • 正向电流(If):20 mA(推荐工作点)
  • 最大耗散功率:60 mW(单颗)
  • 二极管配置:共阳极(Common Anode)
  • 灯头类型:3 mm 圆形透镜
  • 发光颜色:红色、黄绿色(双色)
  • 名义波长(Dominant / 标称):红 626 nm,黄绿色 572 nm
  • 峰值波长(Peak,典型):红 645 nm,黄绿色 562 nm
  • 正向压降(Vf,典型):红 2.0 V,黄绿色 2.1 V
  • 发光角度:150°(宽视角)
  • 工作温度范围:-25 ℃ ~ +85 ℃
  • 封装形式:SIP-3,针距 2.54 mm(便于插装与电路板焊接)

注:上述为典型/标称值,具体性能以出厂数据表(DATASHEET)和实际测试为准。

三、封装与针脚说明

  • 封装类型:通过孔(THT)SIP-3,3 个引脚排列,常见于面板指示与插板安装。
  • 针脚功能(典型,共阳极):
    • 公共阳极引脚:连接电源正极(或到电源正极的上拉电阻/电路)
    • 两个独立阴极引脚:分别控制红色与黄绿色通断,通过限流电阻与地连接以实现各自发光控制
  • 灯头直径:3 mm,圆形透镜提供较均匀的发光面与宽视角。

四、使用建议与电阻计算示例

为保证 LED 寿命与稳定工作,必须采用限流电阻或恒流源。推荐工作电流为 20 mA;若需降低亮度或延长寿命可选择 10~15 mA 工作点。

限流电阻计算(示例):

  • 以 5 V 电源驱动红色(Vf = 2.0 V,If = 20 mA): R = (5 V - 2.0 V) / 0.02 A = 150 Ω
  • 以 5 V 驱动黄绿色(Vf = 2.1 V,If = 20 mA): R = (5 V - 2.1 V) / 0.02 A ≈ 145 Ω(可选 150 Ω 标准值)

注意电阻功耗:Pr = (Vs - Vf) * If,例如上例红色:Pr = (5-2) * 0.02 = 0.06 W,选用 1/4 W(或更高)功率电阻即可。

由于为共阳极结构,通常把公阳极接至正电源,独立对每个阴极端串联限流电阻并接地,从而单独控制每色。

五、热管理与可靠性

  • 最大耗散功率 60 mW 表示单颗 LED 在最大条件下的功率限制,实际功耗(Vf × If)应小于该值;在额定 If=20 mA 下,典型功耗约 40~42 mW(安全范围内)。
  • 在高温环境或密集封装中应注意散热,若长期在高温(靠近 85 ℃)工作,应考虑降额使用(降低 If)以延长寿命。
  • 建议在有温度变化或高湿度环境下进行可靠性验证。LED 对静电敏感,存取与焊接时应采取防静电措施(ESD 防护)。

六、焊接与存储注意事项

  • 推荐波峰/手工焊接温度与时间:波峰/回流的具体曲线请参考厂方资料表,一般最高焊接温度不超过 260 ℃,焊接时间短以免热损伤。
  • 焊接前建议在短时间内完成,避免器件长时间暴露于高温环境。
  • 存储建议:干燥防潮、避免阳光直射和强腐蚀性气体,常温下密封包装为佳。

七、典型应用场景

  • 仪表面板与指示灯(电源指示、状态显示)
  • 家用电器与消费电子指示灯(遥控器、开关指示)
  • 工业控制面板、信号灯、低功耗指示场合
  • 教育与开发板指示灯,便于插装调试

八、总结

MHLA3029EGTD 是一款适用于通用指示与显示的双色 3 mm LED 器件,具有共阳极便于电路设计、宽视角(150°)与标准 SIP-3 通过孔封装,便于面板与插板安装。典型正向电流 20 mA、Vf 约 2.0 / 2.1 V、工作温度范围 -25 ~ +85 ℃,在正确限流与良好散热条件下可提供稳定可靠的指示光源。购买与设计时建议参考完整数据表以获取详细的机械尺寸、典型光强与可靠性测试数据。

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