WMSIC Electronic Components

MEIHUA MHL3014UGTD

ModelMHL3014UGTD
PackageThrough-hole, D=3mm
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 MHL3014UGTD
Type
MEIHUA
Minimum package
1000 袋

Technical parameters

Power
120mW
Electronic Component
Electronic Component
Electronic Component
MEIHUA
Electronic Component
MHL3014UGTD
Electronic Component
1
Package
Through-hole, D=3mm
Electronic Component
520nm
Electronic Component
LEDDiode / LED
Electronic Component
0.163g
Electronic Component
1
LED
3.13cd
LED
45°
LED
Electronic Component
Electronic Component
BM0226603449
Electronic Component
525nm
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.

MHL3014UGTD 翠绿色 3mm 圆形发光二极管(MEIHUA 美华)产品概述

一、产品简介

MHL3014UGTD 是美华(MEIHUA)推出的一款高亮度翠绿色(峰值波长约525 nm,标称发射波长520 nm)3mm 直插式发光二极管(LED)。封装为插件式圆头,发光角度约45°,在典型正向电流20 mA 工作点时具有约3130 mcd 的光强,正向压降约为 3.2 V,额定功率 120 mW,适用于各种指示、显示与背光场合。

二、主要电学与光学参数

  • 发光颜色:翠绿色(波长 520 nm,峰值 525 nm)
  • 发光强度(Iv):3130 mcd(IF = 20 mA)
  • 发光角度:45°(半强度角)
  • 正向压降(Vf):约 3.2 V(IF = 20 mA)
  • 正向电流(IF):典型 20 mA(请勿长期超过推荐电流)
  • 最大耗散功率:120 mW(整灯/结点功耗限制)
  • 工作温度范围:-25 ℃ 至 +85 ℃
  • 封装:插件,D = 3 mm

三、特点与优势

  • 色彩纯正,峰值波长集中在绿色敏感区,视觉响应好,指示效果醒目。
  • 小型 3 mm 封装,适合空间受限的面板、指示孔与精密仪表。
  • 中等窄视角(45°),便于定向显示与突出指示效果,减少旁向漏光。
  • 插件封装便于手工装配与波峰/回流焊(具体焊接工艺请参见制造商推荐),适合快速替换与维护。

四、典型应用

  • 面板指示灯、设备状态指示、按键指示灯
  • 仪表与测试设备显示、消费电子指示元件
  • 低功耗标识、指示标志、信号指示
  • 工业控制与嵌入式系统的视觉反馈

五、驱动与连接建议

为保证稳定可靠的亮度和寿命,应采用限流方式驱动 LED。可选用简单的串联电阻或恒流驱动器。

串联限流电阻计算示例(以 IF = 20 mA, Vf = 3.2 V):

  • 5 V 电源:R = (5.0 − 3.2) / 0.02 ≈ 90 Ω → 取 91 Ω 或 100 Ω。电阻功率 P_R = (1.8 V × 0.02 A) = 0.036 W(0.125 W 或更高即可)。
  • 12 V 电源:R = (12 − 3.2) / 0.02 ≈ 440 Ω → 取 470 Ω。电阻功率 P_R = (8.8 V × 0.02 A) = 0.176 W(建议 0.5 W 或以上)。
  • 3.3 V 电源:R = (3.3 − 3.2) / 0.02 ≈ 5 Ω,电压裕量很小,不推荐直接用简单电阻限流;建议采用恒流源或提升电源电压后限流。

脉宽调制(PWM)调光可行,推荐在低侧使用 MOSFET 或 NPN 做开关,以获得良好线性与高频响应;注意 PWM 频率对人眼闪烁感应与电磁兼容的影响。

六、热管理与可靠性

LED 的光输出与寿命与结温密切相关。尽量保证环境温度在规格范围内工作,并避免在最高电流与高环境温度下长期运行。若需长期稳定亮度,建议对驱动电流适当降额(例如 10–15 mA)以提高寿命与可靠性。

制造商给出功率限值为 120 mW,应确保结温与封装散热路径不会引起超温。实际系统设计时应考虑散热、通风与 PCB 布局。

七、安装与焊接注意事项

  • 采用插件式封装,安装时注意极性(长脚为阳极/正极,具体请参阅元件本体标识或数据手册)。
  • 焊接时避免长时间高温烙铁接触 LED 封装正面或树脂体,以免变色或光学性能退化。推荐使用短时间快速焊接、适当预热并遵循制造商的焊接曲线建议。
  • 避免机械应力作用于封装和引脚弯折,安装完毕后不宜再次弯折引脚。
  • 存放与搬运时注意防潮与防静电,建议在 ESD 保护环境下操作。

八、注意事项与选型提示

  • 若需严格色度/亮度一致性,应向供应商索取色温/色品坐标与分级(bin)资料并按批次筛选。
  • 在需要精确亮度控制或在较宽电源范围工作时,优先采用恒流驱动或带反馈的 LED 驱动方案。
  • 高环境温度、连续过流或反向电压冲击均会缩短 LED 寿命,设计时预留裕量和保护电路(如限流、反向保护二极管)。

本概述基于 MHL3014UGTD 的典型参数与常见工程实践,具体详细电气、机械和可靠性数据请参阅美华(MEIHUA)官方数据手册或直接联系供应商获取批次与分档信息,以便在量产设计中确保一致性与合规性。

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