WMSIC Electronic Components

MEIHUA MHT192JRCT

ModelMHT192JRCT
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 MHT192JRCT
Type
MEIHUA
Minimum package
4000 圆盘

Technical parameters

Power
75mW
Electronic Component
Electronic Component
Electronic Component
MEIHUA
Electronic Component
MHT192JRCT
Electronic Component
1
Package
0603
Electronic Component
631nm
Electronic Component
LEDDiode / LED
Electronic Component
0.019g
Electronic Component
1
LED
71mcd
LED
120°
LED
Electronic Component
Electronic Component
BM0225772640
Electronic Component
639nm
Operating Temperature
40℃~+85℃

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

MHT192JRCT (MEIHUA 美华) — 0603 红色发光二极管 产品概述

MHT192JRCT 是 MEIHUA(美华)出品的超小型 0603 封装红色发光二极管(LED),以紧凑封装、宽发光角度和稳定的发光特性适用于各类指示、背光及微型电子产品。该器件采用无色透明透镜,光学性能良好,适合高密度 SMT 装配。

一、主要规格要点

  • 型号:MHT192JRCT
  • 品牌:MEIHUA(美华)
  • 封装:0603(约 1.6 mm × 0.8 mm)SMD
  • 发光颜色:红色(透明透镜)
  • 标称波长:631 nm
  • 峰值波长:639 nm
  • 正向电流(If):20 mA(额定)
  • 正向压降(Vf):1.9 V(典型)
  • 最大功耗:75 mW
  • 发光强度:71 mcd(典型/测试条件请参见数据表)
  • 发光角度:120°(半功率角)
  • 工作温度范围:-40°C 至 +85°C

二、光学与电气特性解析

  • 波长与颜色:标称波长 631 nm,峰值 639 nm,属典型的纯红光谱区。透明透镜保证光点清晰、色散小,便于视觉识别和均匀照明应用。
  • 发光强度与角度:71 mcd 的亮度配合 120° 的大视角,使其在指示灯和面板照明中既能保证可视距离,又能提供较宽的观察范围。
  • 驱动与功耗:额定电流 20 mA 时典型正向压降约 1.9 V,器件最大功耗 75 mW。由于 0603 为微型封装,热耗散能力有限,连续工作时应注意电流与功耗匹配,避免超过封装热极限。

三、典型驱动与电阻计算示例

使用恒流源是最稳妥的方式;若采用限流电阻进行驱动,可按以下方法计算:

  • 示例:直流电源 5 V,目标 If = 20 mA,Vf = 1.9 V
    R = (5 V − 1.9 V) / 0.02 A = 155 Ω,常用取值 150 Ω 或 160 Ω。
  • 示例:直流电源 3.3 V,目标 If = 20 mA
    R = (3.3 V − 1.9 V) / 0.02 A = 70 Ω,常用取值 68 Ω 或 75 Ω。
    为延长使用寿命与降低温升,指示灯类应用可考虑将工作电流降至 2–10 mA,根据亮度需求取舍。

四、封装与焊接建议

  • 封装尺寸 0603(约 1.6 × 0.8 mm),适用于高密度 SMT 生产线。
  • 推荐按照厂商提供的焊膏印刷与回流温度曲线进行焊接;若无特殊说明,遵循通用 SMD 回流工艺,峰值温度通常不宜长期超过 ~260°C。
  • PCB 焊盘设计应参考厂商推荐的 land pattern,以保证良好焊点与热散布效果。微小封装对焊膏量和停留时间敏感,需在工艺验证中调整。

五、热管理与可靠性注意事项

  • 由于器件体积小,热阻较高,长时间在额定 20 mA 下工作会产生较大结温,建议在高环境温度或连续点亮场合适当降额(降低驱动电流或增加间歇)。
  • 工作温度范围 -40°C 至 +85°C 覆盖多数工业与消费场景,但在接近上限温度时建议降流以延长寿命。
  • 对焊接、回流次数和温度曲线要严格控制,避免热循环引起光衰或机械损伤。

六、存储、处理与防静电

  • LED 对电流突变和静电敏感,采购与贴装过程中应采取 ESD 保护(佩戴接地腕带、使用抗静电工作台等)。
  • 存储时避免潮湿、高温与强光照射;长期存放建议按干燥盒方式保存并遵循厂商出货说明进行回流前干燥处理(如需)。

七、典型应用场景

  • 面板/指示灯(家电、仪表、消费电子)
  • 键盘背光、指示状态、通信设备指示
  • 物联网设备、可穿戴设备与手持终端的状态提示
  • 仪器仪表和交通信号的微型光源场合

总结:MHT192JRCT(MEIHUA)为一款尺寸微小、视角宽、光色纯正的 0603 红色 LED,适合对体积要求严格且需要稳定指示光源的产品。实际设计中应重视热管理、限流设计与焊接工艺,以确保长期可靠性与一致的光学表现。若需精确光电曲线、脉冲特性或焊接温度曲线,请参考厂商完整数据手册或联系供应商获取验证数据。

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