WMSIC Electronic Components

Nationstar NTD3528U4

ModelNTD3528U4
Package3528
BrandPhotoelectric
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
Photoelectric NTD3528U4
Type
Nationstar
Minimum package
2000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Photoelectric
Electronic Component
NTD3528U4
Electronic Component
1
Package
3528
Electronic Component
Ultraviolet LED (UV LED)
Electronic Component
0.085g
Electronic Component
10.5nm
Electronic Component
1
LED
130°
Electronic Component
BM0228550464
Electronic Component
365nm~370nm
Operating Temperature
20℃~+65℃
Current
150mA
Power
200mW
Electronic Component
4kV

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

NTD3528U4 产品概述

NTD3528U4 是国星光电推出的一款高功率紫外(UV-A)3528 封装发光二极管,峰值波长集中在 365–370nm 范围,专为紫外照明、固化与检测类应用设计。该型号在窄谱带、较高辐射功率和紧凑封装之间取得平衡,适合需要稳定紫外辐照的工业与实验室场景。

一、主要技术参数(概要)

  • 品牌:国星光电
  • 封装:3528(SMD)
  • 峰值波长:365nm ~ 370nm(UV-A)
  • 半波宽(FWHM):10.5nm(谱线窄,单色性好)
  • 正向压降(Vf):4.2V
  • 额定正向电流:150mA
  • 耗散功率(Pd):630mW(与 Vf 与 If 对应)
  • 辐射功率(Popt):200mW(总光功率输出)
  • 发光角度:130°(出光角宽,适合常规表面照明)
  • 直流反向耐压(Vr):5V
  • 工作环境温度:-20℃ 至 +65℃
  • 抗静电能力:4kV(常见操作防护等级)

二、光学与光谱特性

NTD3528U4 的峰值波长集中在 365–370nm,属于紫外-A 波段,半波宽仅 10.5nm,意味着输出光谱相对集中,利于针对性激发或固化光敏材料(例如荧光染料、光敏树脂、荧光检测试剂等)。130° 的较大发光角度适合对面积较大或近场照明需求,不适合需要高度聚光的小角度远距照明场景。

三、电气与热管理注意事项

  • 以 150mA 的正向电流和 4.2V 的正向压降计算,器件耗散功率约为 630mW,热量较大,必须通过良好的 PCB 散热设计或搭配散热体以维持结温在安全范围内,延长器件寿命。
  • 推荐使用恒流驱动源,避免直连电源,以保证电流稳定并防止热失控。
  • 反向耐压 Vr 为 5V,使用电路时应避免施加较大反向电压,必要时在驱动端加入反向保护二极管。
  • 考虑脉冲驱动:在需要更高瞬时功率的应用可采用短脉冲驱动,但应保证平均功率和结温在器件允许范围内;脉冲参数需经验证并遵循厂家脉冲规格(如有)。

四、可靠性与防护建议

  • 抗静电能力 4kV 表示器件对静电有一定抵抗力,但在生产与装配过程中仍需严格执行 ESD 防护(佩戴腕带、接地桌面、使用防静电包装)。
  • 工作环境温度范围为 -20℃ 至 +65℃,超出此范围会影响性能与寿命,应在系统设计时确保器件工作于额定温度区间。
  • 由于属紫外光源,长时间裸露可能造成材料老化(塑料、黏合剂等),在器件封装与系统设计时应选择耐紫外材料并考虑遮光/滤波需求。

五、典型应用场景

  • UV 固化:用于光敏树脂、UV 胶、油墨或涂料的表面或点固化,窄谱峰值有利于与光敏体系的匹配。
  • 荧光检测与照明:适用于荧光显色、荧光标记检测、无损检测与安全验钞等场景。
  • 光化学与生物分析:用于粘合、光催化或实验室级别的紫外激发(需遵循生物安全与防护规范)。
  • 工业表面检测与夜光材料激发:用于裂纹、污染、荧光痕迹的快速照明检测。

六、设计与安全建议

  • 驱动设计:使用恒流源并配合软启动、电流限制与温度监控;若并联多颗 LED,应保证电流均流与单颗保护。
  • 散热设计:在 PCB 上留出热铜区、采用热过孔或金属基板,必要时加装散热片或风冷系统。
  • 光学布局:若需更窄照射角或光斑整形,可配合透镜、反射杯或光学阵列进行设计;若要求均匀照射,可通过多点排列并优化间距实现。
  • 紫外安全:紫外光对眼睛与皮肤有潜在危害,系统设计或使用时应采取屏蔽、限制照射时间、佩戴防护眼镜并张贴警示标识。

总结:NTD3528U4 在 3528 SMD 封装下提供了高辐射功率、窄谱峰值和宽出光角的紫外输出,适合多种固化、检测与激发类应用。合理的恒流驱动与有效的热管理是确保器件稳定可靠运行的关键;在系统设计中同时要重视紫外安全与 ESD 防护。若需进一步的电光-热特性曲线、可靠性测试数据或封装尺寸图,请参考国星光电的详细产品资料或联系厂家技术支持。

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