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ASMT-UWB1-NX3B2 为 Broadcom(博通)出品的一款高亮度冷白光表面贴装(SMD)LED,采用 2-PLCC(4-SMD)扁平引线裸焊盘封装,外观为圆形平顶透镜并带散射处理。器件以冷白(约 6500K)主色温输出,透镜呈黄色(典型为蓝芯+黄色荧光粉形成白光),在标准测试电流 20 mA 条件下具有良好的光通性能与宽视角分布,适合多种指示和照明类应用。
该器件在 20 mA 驱动时能提供约 2300 mcd 的单点亮度输出,配合 120° 宽视角和散射透镜设计,可在小尺寸封装下实现较平滑的出光分布,适合做指示灯、照明点光源或小面积面光源。典型正向电压为 3.2 V,对应在 20 mA 时的电功耗约为 64 mW(P = Vf × I),热量较小但仍需注意 PCB 散热设计以保证长期稳定性与颜色一致性。
注意:所列光电参数为典型测量值,实际件别(bin)之间会有光强、色温及 Vf 的分布差异,批量选型时建议参考完整数据手册并按需要索取色彩/光强分bin。
ASMT-UWB1-NX3B2 采用 2-PLCC(4-SMD)扁平引线裸焊盘封装,尺寸紧凑,适用于高密度贴片组装。推荐采用标准 SMD 回流焊工艺安装:
在设计时,应根据应用的亮度、色温一致性及驱动条件选择合适 bin(若对亮度或色温有要求,建议进行 bin 分选)。同时关注长期驱动电流、环境温度对亮度衰减(Lumen depreciation)和色温漂移的影响,并在 PCB 布局中预留足够的散热路径以延长器件寿命。最终设计建议以 Broadcom 官方数据手册与可靠性报告为准。
如需更详细的电气特性曲线、机械图、回流焊曲线或 bin 列表,可提供我来帮您检索或整理厂方资料。
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Product sourcing intelligence
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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
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The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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