Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
YLED0402R 是永裕泰(YONGYUTAI)出品的小尺寸表面贴装发光二极管(SMD LED),封装规格为 0402,适用于对体积和功耗要求严格的电子设备。器件为红色发光,透镜为无色透明,发光均匀,视觉效果稳定,适合做指示与微型背光应用。
0402 封装体积小,散热能力有限。按最大参数计算,最大功耗 60 mW,若按最大 Vf 2.4 V 与 If 20 mA 计算,耗散功率约 48 mW,仍低于额定功耗。但在实际设计中建议采用电流降额使用以延长寿命与稳定性:常用驱动电流在 1–10 mA 区间;若需 20 mA 驱动,应确保良好 PCB 散热并考虑脉冲驱动以降低结温。
举例(串联限流电阻计算):以 5 V 电源与期望 If = 10 mA、取 Vf = 2.0 V 时,R = (5.0 − 2.0) / 0.01 = 300 Ω。
适用于各类小型电子产品指示、面板指示灯、移动设备指示、可穿戴设备、精密仪器、物联网终端、医疗与工业控制指示等场景,尤其在空间受限的 PCB 设计中具备明显优势。
型号:YLED0402R
品牌:YONGYUTAI(永裕泰)
封装:0402,透明透镜,红色发光。
在选型时,请确认后端驱动电压、电流与期望亮度匹配,并向供应商核实批次的光谱与亮度公差以保证颜色一致性。
如需更详细的电气特性曲线、光强-电流关系或封装尺寸图纸(PCB 焊盘推荐),建议索取厂方规格书(Datasheet)以作为可靠设计依据。
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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.
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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.
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