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.
LRB521S-40T1G 是东沃(DOWO)出品的一款小功率肖特基整流二极管,采用 SOD-523 超小封装,适用于空间受限且要求低压降、高频整流的应用场景。器件标称直流整流电流为 200mA,直流反向耐压 40V,具备低正向压降与较低反向漏电的特性,适合便携设备、开关电源二次侧、信号整流与反向保护等低功耗电路。
SOD-523 超小型封装,有利于高密度 PCB 设计与微型化产品。推荐在 PCB 布局时注意焊盘尺寸与热阻路径,尽量将引脚铜箔连接到较大回流面以提升散热。该封装对手工焊接和回流温度有一定要求,建议按厂家回流曲线进行焊接工艺控制。
优势:正向压降低、体积小、适合高密度电路与低功耗设计、反向漏电较低。
局限:额定电流与浪涌能力有限,不适合中大功率场合;40V 反向耐压限制了在更高电压系统中的直接应用。
如需进一步的封装尺寸图、温度特性曲线或回流焊建议,请提供具体需求以便提供更详细的资料。
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.
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