WMSIC Electronic Components

worldsemi WS2850B-4020 WS2850B

ModelWS2850B-4020
PackageSMD4020-4P
BrandWORLDSEMI
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
worldsemi WS2850B-4020
Type
WORLDSEMI
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WORLDSEMI
Electronic Component
WS2850B-4020
Electronic Component
1
Electronic Component
2mm
Package
SMD4020-4P
Electronic Component
G:515nm~525nm;B:465nm~475nm;R:620nm~630nm
Electronic Component
RGB LED
Electronic Component
0.067g
Electronic Component
3.98mm
Electronic Component
1.7mm
Electronic Component
1
LED
G:1000mcd~1500mcd;R:400mcd~600mcd;B:300mcd~500mcd
LED
120°
Electronic Component
BM0264717363
Current
R:20mA;B:20mA;G:20mA

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

WS2850B-4020 产品概述

一、产品简介

WS2850B-4020 是 worldsemi 推出的高一致性小间距侧发光 RGB 芯片级灯珠,采用 SMD4020-4P 封装与共阳极(Common Anode)引脚设计,专为需高亮度、色彩一致性及良好散热的电子产品和显示应用而优化。整机以原装正品芯片与红铜支架为核心,结合优良的封装与胶体工艺,提供稳定可靠的光学与电气性能。

二、主要参数

  • 封装:SMD4020-4P(4 引脚共阳)
  • 波长:G 515–525 nm;B 465–475 nm;R 620–630 nm
  • 发光强度(典型):G 1000–1500 mcd;R 400–600 mcd;B 300–500 mcd
  • 发光角度:120°(侧发光设计)
  • 正向电流(If):R/B/G 均 20 mA(最大额定)
  • 正向压降(Vf):R 1.8–2.4 V;B 2.8–3.4 V;G 2.8–3.4 V
  • 尺寸:长度 3.98 mm;宽度 2.00 mm;高度 1.70 mm
  • 配置:共阳极,4 引脚(共阳 + R + G + B)

三、特性与优势

  • 光电一致性高:RGB 芯片波长与亮度经过筛选,色彩一致性好,适合像素化显示和点光源应用。
  • 散热性能优:采用红铜支架,有利于热量快速传导与散发,延长器件寿命。
  • 封装与胶体优势:使用防硫化胶水,气密性好、透明度高、耐高温且固化后保持良好柔性与光泽,提升环境可靠性。
  • 侧发光支架设计:发光方向更适合风扇灯、装饰灯条及异形屏边缘显示,光线均匀性好。
  • 品质保障:采用原装芯片和严格封装工艺,稳定性高、寿命长。

四、封装与机械尺寸

SMD4020-4P 表面贴装封装,尺寸小巧(3.98 × 2.00 × 1.70 mm),便于高密度贴片与自动化贴装。共阳极 4 引脚布局有利于简化驱动线路,在像素屏与点光源模组中可节省 PCB 面积。

五、电气特性与驱动建议

  • 建议驱动电流不超过 20 mA(单色),常用工作电流可取 10–15 mA 以延长寿命并降低发热。
  • 驱动电阻计算示例(以单色恒流限流为例):R = (Vcc - Vf) / If。举例:5 V 电源驱动红色(取 Vf = 2.1 V,If = 20 mA)时,R ≈ (5 - 2.1) / 0.02 ≈ 145 Ω。实际设计应考虑 Vf 容差与功耗。
  • 采用 PWM 调光时建议频率 ≥ 1 kHz 以避免肉眼闪烁;多色复合显示应做颜色校准以保证一致性。
  • 注意 ESD 及逆向保护,焊接时遵循 SMD 回流曲线与最大结温限制以免损伤封装或胶体。

六、典型应用

  • LED 风扇灯、数码产品彩灯
  • LED 点光源、像素化显示屏与异形屏
  • 电子产品指示与装饰照明、家电跑马灯等需侧向发光或高一致性的场景

七、可靠性与使用注意

  • 推荐在考虑环境温度与热沉条件下进行热仿真与降额设计,避免长时间高温工况。
  • 存储与使用环境避免强硫化气体与化学腐蚀性介质。
  • 贴装与返修应遵循厂商回流焊规范,避免多次高温回流。

WS2850B-4020 以其高一致性的光学特性、优良的散热结构与可靠的封装工艺,适合各类需要精细色彩控制与侧发光布局的中高端照明与显示应用。若需详细数据表(IV 曲线、色坐标、回流曲线等)与样品支持,可联系 worldsemi 或指定代理获取。

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