WMSIC Electronic Components

LITEON LTST-C281KRKT-5A

ModelLTST-C281KRKT-5A
Package0402
BrandLITEON
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
LITEON LTST-C281KRKT-5A
Type
LITEON
Minimum package
5000 卷

Technical parameters

Power
75mW
Electronic Component
Electronic Component
Electronic Component
LITEON
Electronic Component
LTST-C281KRKT-5A
Electronic Component
1
Package
0402
Electronic Component
631nm
Electronic Component
LEDDiode / LED
Electronic Component
0.015g
Electronic Component
1
LED
4.5mcd;45mcd
LED
130°
LED
Electronic Component
Electronic Component
BM0227676836
Electronic Component
639nm
Operating Temperature
30℃~+85℃

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

LTST-C281KRKT-5A 产品概述

一、产品简介

LTST-C281KRKT-5A 是 LITEON(台湾光宝)推出的一款单色表贴 LED,采用超小型 0402 封装,发出橙红色光。该器件为无色透明透镜设计,视角宽达 130°,适合需要微型指示、状态显示或点阵排列的高密度电路板应用。凭借小体积与良好的光电特性,适用于消费电子、可穿戴设备、仪器仪表及各类指示灯方案。

二、主要电气与光学参数

  • 发光颜色:橙红色(肉眼呈橙红调)
  • 正向电流(IF):额定 5 mA(建议持续工作电流)
  • 正向压降(Vf):约 1.7 V ~ 2.3 V(随电流与环境温度变化)
  • 最大耗散功率:75 mW(器件极限,应避免长期靠近或超过该值)
  • 峰值波长(λp):639 nm
  • 标称波长(或主波长/支配波长):631 nm(视觉色调参考)
  • 发光强度(Iv):分档范围约 4.5 mcd ~ 45 mcd(不同光强分选/测试条件下的典型值)
  • 发光角度:130°(半强度角,适合宽角度照明与指示)
  • 工作温度范围:-30 ℃ ~ +85 ℃
  • 透镜颜色:无色透明透镜(便于实现纯色输出与多色面板设计)
  • 封装:0402 SMD(超小型,适合高密度布板)

说明:上述光强、压降等参数受测试条件(如测试电流、环境温度、测试器件分档等级)影响,实际选型时请参考厂商正式数据手册和分选(bin)信息。

三、封装与机械特性

LTST-C281KRKT-5A 采用 0402 表贴封装,体积极小,有利于节省 PCB 空间并支持细间距阵列布置。透明透镜有利于光通量输出的一致性和色彩还原。该封装适用于常规 SMT 回流工艺,但对贴片、回流温度曲线和产线处理精度有较高要求。建议在设计 PCB 时预留合理焊盘并考虑热膨胀与焊锡扩散影响。

四、典型应用场景

  • 面板指示与状态灯(电源、通信、告警等)
  • 可穿戴设备与便携电子(对体积敏感的状态显示)
  • 仪表与医疗设备的小尺寸指示
  • LED 点阵或图形显示阵列
  • IoT 终端与消费类电子的小型指示与装饰光效

五、使用与设计注意事项

  • 电流控制:建议在驱动电路中加入限流电阻或恒流源,避免超过额定 5 mA 的持续电流以延长寿命并防止光衰加速。
  • 功率与热管理:器件最大耗散功率为 75 mW,但在实际设计中应留有余量,避免长期在极限功率下工作。环境温度升高会使 Vf 下降且光强衰减,应进行温升评估和必要的热管理。
  • ESD 防护:SMD LED 对静电敏感,生产与调试过程中应采取静电防护措施(佩戴防静电手环、使用防静电工作台等)。
  • 焊接与回流:采用标准 SMT 回流工艺,遵循供应商提供的回流温度曲线与湿敏等级说明。回流后若需清洗,应使用对 LED 无腐蚀性的清洗剂并控制清洗温度与时间。
  • 光学分档:光强和色度通常有分档(bin)信息,批次间可能存在差异,若对亮度和颜色一致性要求高,建议与供应商确认分档等级并下单时指定所需 bin。
  • 储存与环境:长时间存放应遵循湿敏防护和温湿度管理,避免潮湿环境导致封装受潮影响回流质量。

六、采购与资料

LTST-C281KRKT-5A 属于 LITEON 常见的小功率 SMD LED 产品线,建议在设计前获取并参考官方数据手册,确认具体电气曲线、尺寸图、回流曲线与分档说明。批量采购时可与供应商沟通光强与色度分档要求,以保证成品一致性。

总结:LTST-C281KRKT-5A 以其超小 0402 封装、宽视角与稳定的橙红色发光特性,适合空间受限且需要可靠指示的应用场景。合理的电流控制与热管理、遵循制造与储运建议,可确保长期稳定运行与一致的显示效果。

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