WMSIC Electronic Components

MEIHUA MHL512IR059CRT

ModelMHL512IR059CRT
PackageTHT,D=5MM
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MEIHUA MHL512IR059CRT
Type
THT, D=5MM
Minimum package
1000 袋装

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MEIHUA
Electronic Component
MHL512IR059CRT
Electronic Component
1
Package
Through-hole, D=5mm
Electronic Component
940nm
Electronic Component
Infrared Emitter
Electronic Component
70°
Electronic Component
0.291g
Electronic Component
1
Electronic Component
BM0228233737
Operating Temperature
25℃~+85℃
Current
100mA
Electronic Component
3mW/sr
(Vf)
1.8V
Power Dissipation(Pd)
180mW

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

MHL512IR059CRT 产品概述

一、产品简介

MHL512IR059CRT 是美华(MEIHUA)推出的一款高性能红外发射二极管,工作波长中心 940nm,采用标准 5mm 插件透明封装(F5),适用于红外遥控、光电传感与短距离光通信等场合。封装外观为透明树脂透镜,有利于辐射角控制与发射效率。

二、主要参数

  • 波长(λp):940 nm
  • 正向电流(If,额定/最大):100 mA
  • 正向压降(Vf,典型):1.8 V
  • 直流反向耐压(Vr):5 V
  • 耗散功率(Pd,芯片耗散):180 mW
  • 辐射强度:3 mW/sr
  • 视角:产品标注 50°(其它资料或测试值可达 70°,实际以出厂检验为准)
  • 工作温度范围:-25 ℃ 至 +85 ℃
  • 封装:插件,D=5 mm,透明外壳

三、主要特点

  • 以 940nm 为中心的近红外辐射,适配常用红外接收器光谱响应;
  • 较高的辐射强度(3 mW/sr),适合中短距离信号发射与检测;
  • 标准 5mm 插件封装,便于 PCB 设计与手工/波峰焊装配;
  • 宽温度工作范围,适合工业与消费类环境。

四、典型应用

  • 红外遥控器与接收终端;
  • 接近/障碍物检测与红外对射;
  • 非接触开关与物体计数;
  • 光电编码器、光学定位与短距无线光通信;
  • 夜视照明与安防传感(配合合适接收器)。

五、驱动与热管理建议

  • 芯片耗散 Pd=180 mW,按 Vf×If 计算:在 If=100 mA 时,LED 自身耗散约 1.8 V × 0.1 A = 0.18 W,已接近耗散极限,连续工作时需注意散热与环境温度;
  • 为保证寿命与可靠性,实际工作电流常建议降低至 20–50 mA 范围;峰值或脉冲工作可短时使用较高电流,但须控制占空比并遵循厂方脉冲规格;
  • 串联限流电阻计算公式:R = (Vs − Vf) / If;电阻功耗 P_R = (Vs − Vf) × If。示例:
    • 供电 5 V、If=100 mA:R ≈ (5−1.8)/0.1 = 32 Ω → 取 33 Ω,电阻功耗 ≈ 0.32 W,建议使用 ≥0.5 W 电阻;
    • 供电 3.3 V、If=100 mA:R ≈ (3.3−1.8)/0.1 = 15 Ω,电阻功耗 ≈ 0.15 W,建议 ≥0.25–0.5 W;
    • 若按 If=20 mA 设计(更常见):5 V 时 R ≈ 160 Ω,电阻功耗仅约 32 mW。
  • 严禁反向施加超过 Vr=5 V,以免损坏结结构;高温环境下应适当降低工作电流以避免超出 Pd。

六、封装与装配注意

  • 插件引脚一长一短,长脚为正极(阳极);安装时注意极性;
  • 透明树脂在波峰或手工焊接时应控制温度与时间,避免树脂变色或应力产生;
  • 建议在装配和调试时采取静电防护措施(ESD),并避免强酸碱清洗剂直接接触发光面。

七、可靠性与选型建议

  • 在选择此型号时,应结合发射距离、接收器灵敏度与环境光条件综合评估,必要时在样品阶段进行实测校验;
  • 若需更窄/更宽视角或更大辐射强度,可联系厂方索取详细产品系列与数据手册,确认脉冲规格与热力学特性。

综上,MHL512IR059CRT 是一款适用于多种红外发射应用的标准 5mm 插件红外 LED,具有良好的兼容性与实用性。选型与设计时请以具体工作电流、散热条件与产品出厂数据为准。若需完整数据手册或定制参数,请联系 MEIHUA 或授权经销商获取原厂资料。

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