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XL-1608HIRC-850是成兴光(Xinglight) 推出的一款0603封装近红外发射管,主打小型化、高可靠性、近距离感应适配,广泛应用于智能家居、消费电子、安防感应等场景。以下从核心特性、参数、应用等维度详细介绍:
这款器件采用0603贴片封装(公制1608,尺寸约1.6mm×0.8mm),是当前小型电子设备的主流封装之一,核心优势:
参数直接决定器件的适用场景,以下是关键参数的实际意义:
不同正向电流下略有波动,20mA工作电流时约1.5V,是常规红外LED的典型范围,方便电路计算限流电阻(如Vcc=5V时,R≈(5-1.5)/0.02=175Ω,选180Ω标准电阻即可)。
最大允许功率,实际工作需控制在30mW以内(对应电流≤20mA),避免过热导致性能下降或损坏。
近红外波段,人眼不可见,无视觉干扰;同时与常规红外接收管(如硅光电池、红外接收二极管)匹配度高,感应灵敏度稳定。
单位立体角内的发射功率,适合1~5米近距离应用(如人体感应、小型遥控),若需更远距离可并联多个器件(总功率不超45mW/个)。
最大直流正向电流,超过会导致器件老化加速;脉冲电流可适当提高(需参考 datasheet 具体要求)。
最大反向电压,避免反向击穿;电路中需避免反向脉冲(可通过二极管钳位保护)。
发射角度宽,单个器件可覆盖较大范围(如人体感应模块中,能检测到左右/上下约120°的移动),减少器件数量。
因参数适配近距离、小型化需求,这款器件主要用于:
XL-1608HIRC-850凭借小型化、高性价比、宽温适配,成为近距离红外应用的优选器件,尤其适合对尺寸敏感的智能设备、消费电子领域。若需更远距离或更高功率,可考虑并联多个或升级功率型器件,但需注意总功率限制。
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