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成兴光(Xinglight)推出的XL-3216IRC-940是一款1206封装的贴片红外发光二极管,属于近红外发射器件。该型号针对常规红外应用场景优化,核心波长集中在940nm左右,具备体积小、功耗低、发射角度宽等特点,广泛适配民用及工业级电子设备的红外控制、感应等功能需求。
红外LED的正向压降低于可见光LED(如红光LED约1.8V~2.2V),表示器件正向导通时的电压范围。实际应用需匹配限流电阻,确保工作电压落在该区间,避免过压/欠压导致性能异常。
器件允许的最大总功耗,实际工作时需注意“电流×电压”乘积不超过45mW。长期超功耗会导致芯片过热,缩短寿命甚至损坏。
属于人眼不可见的近红外光谱,是红外遥控、接近感应的主流波长——多数红外接收器件(如光敏二极管、接收头)对940nm左右的红外光响应最灵敏,兼容性强。
衡量红外光发射能力的关键参数(sr为立体角单位)。2mW/sr的辐射强度可满足常规室内5~10米有效作用距离,适配电视、空调遥控器等民用场景,兼顾小型感应模块的近距离需求。
额定正向工作电流,脉冲驱动时可适当提高峰值电流,但需控制平均电流≤30mA,避免芯片过载。
器件能承受的最大反向电压,超5V可能导致芯片击穿,电路设计需避免反向过压(如串联反向保护二极管)。
发射视角宽达120°,红外光覆盖范围大,无需严格对准接收端即可有效工作(如遥控器角度偏移仍能控制设备),提升使用便利性。
采用1206贴片封装(公制尺寸3.2mm×1.6mm),具备以下优势:
结合参数特性,该器件主要应用于:
XL-3216IRC-940是一款性价比突出的常规红外LED,参数覆盖民用及工业级基本需求,1206封装适配小型化设计,940nm波长兼容性强。适合批量应用于红外遥控、感应等场景,是电子设备红外发射功能的常用选择。
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WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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