Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LTW-C281DS5 是 LITEON(台湾光宝)推出的一款高性价比白光贴片 LED,采用 0402 超小封装,单颗为独立二极管设计,透镜为黄色透镜,适合微型背光、指示和装饰照明等对尺寸与亮度均有要求的场合。该器件以稳定的光电性能与良好的封装一致性著称,便于批量表面贴装生产。
在典型驱动条件(If=5 mA)下,器件呈中高亮度输出(约113 mcd),视角宽达130°,适合均匀照明需求。正向压降约为2.85 V,驱动电源与限流设计时应按此值计算。典型限流电阻计算:R = (Vs - Vf) / If。举例:在 3.3 V 电源下,R ≈ (3.3−2.85)/0.005 ≈ 90 Ω;在 5 V 电源下,R ≈ 430 Ω。使用时请同时核算电阻功耗 P = I^2·R。
0402 封装体积极小,适合高密度 PCB 布局与微型终端产品。黄色透镜有利于改善白光色容差与光分布,但在色温要求严格的应用中需与系统色校正配合。由于体积小、热容低,焊接与 PCB 热平衡设计对可靠性影响明显,建议遵循厂家给出的焊接与回流曲线。
LTW-C281DS5 属于通用型白光 0402 LED,适合需要超小尺寸与中等亮度的设计。采购时请确认批次参数(亮度、色度)以满足色彩一致性要求;在无法获得原厂供应时,可选择同类 0402 白光 LED 做替代,但需注意 Vf、亮度与透镜差异对最终视觉效果的影响。
如需焊接回流曲线、封装尺寸图或更详细的光电曲线(Iv–If、Vf–If、色坐标等),建议向 LITEON 获取 LTW-C281DS5 的完整数据手册以做最终设计验证。
Request for quote
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
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.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products