WMSIC Electronic Components

ROHM SMLEN3BC8TT86

ModelSMLEN3BC8TT86
Package0603
BrandROHM
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
ROHM SMLEN3BC8TT86
Type
ROHM
Minimum package
5000

Technical parameters

Power
66mW
Electronic Component
ROHM
Electronic Component
SMLEN3BC8TT86
Electronic Component
1
Package
0603
Electronic Component
470nm
Electronic Component
LEDDiode / LED
Electronic Component
0.019g
Electronic Component
1
LED
40mcd
LED
Electronic Component
Electronic Component
BM0230878173
Operating Temperature
40℃~+85℃
Current
5mA
Electronic Component
Electronic Component
Diode
Electronic Component

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

SMLEN3BC8TT86 产品概述

一、产品简介

SMLEN3BC8TT86 是 ROHM(罗姆)生产的一款蓝光发光二极管(LED),封装为0603(标准表贴微型封装),发光波长为470 nm,颜色为蓝色。器件采用共阴极配置,透镜为无色透明,典型应用为面板指示、信号提示和微型光源场合。

二、主要参数(基于提供数据)

  • 发光颜色:蓝色(470 nm)
  • 正向电压(Vf):2.9 V(典型)
  • 典型正向电流(If):5 mA(工作点)
  • 额定功率:66 mW(器件允许的最大耗散功率)
  • 发光强度:40 mcd(典型)
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 封装:0603 SMD;透镜:透明无色;二极管配置:共阴极

注:在典型工作点 If=5 mA 时,器件自身的功耗约为 Pd = Vf × If = 2.9 V × 5 mA = 14.5 mW,远小于标注的66 mW额定耗散,说明在该工作电流下热裕量充足。

三、封装与引脚说明

0603 封装体积小,适合空间受限的高密度表贴电路板。共阴极配置常用于多色或多个灯珠集成驱动的情形(共用一端接地/阴极),在设计时应注意驱动端的极性与接线方式。具体焊盘尺寸与丝印位号建议参考 ROHM 原厂封装图和回流焊工艺建议。

四、典型电路与计算示例

为保证稳定亮度,需串联电流限流电阻或使用恒流驱动器。

  • 5 V 电源下:R = (5.0 − 2.9) / 5 mA = 420 Ω(常用值 390 Ω 或 430 Ω);电阻耗散约 P_R = I^2·R ≈ 0.0105 W,功率很小。
  • 12 V 电源下:R = (12.0 − 2.9) / 5 mA = 1.82 kΩ(取 1.8 kΩ);电阻耗散约 45.5 mW,选用 1/8 W 或更高功率电阻。
  • 3.3 V 电源下:R = (3.3 − 2.9) / 5 mA = 80 Ω;注意此时电压裕量小,电流易受电源与器件 Vf 波动影响,建议采用恒流源以稳定亮度。

提示:标注66 mW 为器件允许的最大耗散功率,按照 Pd_max / Vf ≈ 22.8 mA 可估算出理论上可能的极限电流,但长期或重复工作应遵循典型正向电流 5 mA 的推荐值及原厂极限条件,避免超额使用导致寿命下降。

五、适用场景

  • 仪表与面板指示灯、状态指示
  • 可穿戴设备与便携电子产品的标识光源
  • 工业控制与通信设备的指示/提示
  • 消费电子中对空间与功耗敏感的信号指示应用

六、装配与可靠性注意事项

  • 回流焊:使用适合0603 LED 的回流曲线与焊接工艺,避免过高峰温和过长加热时间造成光学或封装损伤;详细推荐请参考 ROHM 焊接工艺资料。
  • ESD 防护:LED 对静电敏感,装配与测试时须佩戴防静电装备并在 ESD 保护环境中操作。
  • 热管理:尽管典型工作点功耗较低,但在并联多个 LED 或高占空比驱动时需关注基板散热与热堆积。
  • 储存与搬运:避免潮湿环境与强光直射,建议密封干燥保存并在推荐时间内贴片使用;如需焊前预烘,请遵循通用 SMD LED 的湿度控制建议。

七、总结

SMLEN3BC8TT86 以其微型0603 封装、470 nm 纯蓝发光、适中的发光强度和宽工作温度范围,适合对空间与功耗有严格要求的指示类应用。在电路设计中应采用合适的限流或恒流驱动,并按原厂装配与可靠性建议进行回流焊与 ESD 管控,确保长期稳定运行。如需最终设计与生产资料,请以 ROHM 官方数据手册为准,以获取完整的机械图、光学分布、回流图与绝对极限参数。

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