WMSIC Electronic Components

LITEON LTST-C190YKT

ModelLTST-C190YKT
Package0603
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 26+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
LITEON LTST-C190YKT
Type
LITEON
Unit
Electronic Component
Minimum package
4000 卷

Technical parameters

Power
60mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
LITEON
Electronic Component
LTST-C190YKT
Electronic Component
1
Package
0603
Electronic Component
588nm
Electronic Component
LEDDiode / LED
Electronic Component
0.167g
Electronic Component
1
LED
6mcd
LED
130°
LED
Electronic Component
Electronic Component
BM0259736959
Electronic Component
585nm

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

LTST-C190YKT 产品概述

LTST-C190YKT 是来自台湾光宝(LITEON)的 0603 封装黄色 SMD 芯片型 LED,面向需要微型、低功耗且视角宽广的指示与背光应用。该器件以高可靠性、小尺寸与可回流焊接工艺的兼容性为特点,适用于消费电子、通信终端、家用电器、物联网终端等多种场景。

一、主要电学与光学参数

  • 发光颜色:黄色(Yellow)
  • 峰值波长:585 nm;光谱中心/典型波长:588 nm
  • 正向电压(Vf):典型 2.1 V(在 If = 20 mA 条件下)
  • 额定正向电流:20 mA(最大工作电流)
  • 最大耗散功率:60 mW
  • 光强(Iv):典型 6 mcd(在 If = 20 mA)
  • 发光角度:130°(宽视角,均匀照明/指示)
  • 透镜颜色/形式:无色透明透镜(透明封装有利于亮度与色彩一致性)
  • 工作温度范围:-55 ℃ ~ +85 ℃
  • 封装:0603 SMD 芯片
  • 品牌/型号:LITEON LTST-C190YKT

二、产品特点与优势

  • 小体积(0603)适合高密度贴片电路与空间受限设计。
  • 宽视角(130°),指示状态在较大观察范围内可见,适合面板与外壳指示灯需求。
  • 低功耗与低正向电压,便于在低电压系统中驱动与节能。
  • 透明透镜提供较好的发射效率与光学一致性,便于实现均匀显示效果。
  • 宽温度工作范围,能满足工业级与消费级多种环境条件。

三、典型驱动与电阻计算(示例)

在设计中通常采用恒流或串联限流电阻驱动。按典型参数示例计算:

  • 以 Vcc = 5.0 V,If = 20 mA:R = (5.0 − 2.1) / 0.02 = 145 Ω → 选用 150 Ω,电阻耗散功率约 (5.0−2.1)*0.02 = 0.058 W(1/8W 或 1/4W 常规电阻足够)。
  • 以 Vcc = 3.3 V,If = 20 mA:R = (3.3 − 2.1) / 0.02 = 60 Ω → 可选 62 Ω,电阻耗散功率约 0.024 W。
    提示:若以寿命与稳定性优先,建议采用低于额定电流(例如 10–15 mA)工作点,能显著降低热应力并延长光衰寿命。

四、封装与焊接建议

  • 0603 超小封装对焊盘设计与回流工艺敏感。建议按照光宝官方数据手册中的 PCB 焊盘图与回流曲线进行设计与工艺参数设置。
  • 为改善散热与焊接质量,可在 PCB 上为 LED 提供适当的铜层面积与焊盘过孔布局。
  • 装配时注意避免对 LED 本体施加机械应力(如强力刮擦或挤压),以免造成芯片损伤或光学性能下降。
  • 严格遵守 ESD 防护措施,避免静电放电损伤 LED 芯片。

五、可靠性与使用注意

  • 遵守最大正向电流与最大功耗限制,避免长时间在极限工况下工作。
  • 在高湿或潮湿环境下存放与回流焊前的预烘烤,请参照厂商关于潮湿敏感度(MSL)与储存的具体说明。
  • 长期高电流工作会加快光衰,若对亮度保持要求高,建议采用降额驱动并增加散热路径。
  • 在产品验证阶段进行热循环、焊接可靠性与光衰老化测试,以确认在目标应用场景下的长期稳定性。

六、应用场景

  • 面板/外壳状态指示(电源、通信、错误指示等)
  • 小型仪器与便携设备的功能提示灯
  • 可穿戴设备与手持终端的微型指示
  • IoT 节点、路由器、智能家居终端的状态显示
  • 多色指示阵列或简易符号背光(配合其它颜色 LED)

七、采购与鉴别要点

  • 型号完整:LTST-C190YKT,优先向授权供应链或光宝官方渠道购买,确保批次一致性与配套数据手册的可用性。
  • 注意查看元件的光学分档(Binning)与电气分档,设计时应考虑 Iv 与 Vf 的容差对终端亮度与颜色的一致性影响。
  • 接收来料时建议进行抽样测试(Vf、Iv、外观、焊接可焊性)以验证供应品质。

总结:LTST-C190YKT 是一款适用于多种指示与小型背光用途的 0603 黄色 SMD LED,兼具小尺寸、低功耗与宽视角特性。在电路设计与 PCB 布局上适当考虑热管理与焊接工艺,并遵循 LITEON 提供的详细规格与处理建议,能获得稳定可靠的使用表现。

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