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.
1SMB5931B 是由 BORN(伯恩半导体)推出的一款 SMB 封装贴片稳压管,属于独立式(单颗)稳压二极管。其典型稳压值在 17.1V ~ 18.9V 范围,额定耗散功率为 3W,适用于需要稳压基准或过压保护的中低功率贴片电路。SMB(DO-214AA)封装兼顾了表面贴装工艺的装配便捷性与较好的热扩散性能,适合批量生产与自动化贴装。
SMB(DO-214AA)为表面贴装矩形封装,适合自动化回流焊工艺。尽管封装有一定散热能力,3W 的功耗要求设计时考虑 PCB 热设计:
总结:1SMB5931B 为一款面向中低功耗稳压与保护场合的 3W SMB 封装稳压管,具有较低漏电、工业级温度范围和适配 SMT 工艺的优点。合理的热设计与正确的电路选型能有效发挥其稳压与保护能力。若需更详细的电气特性表与典型曲线,请参考 BORN 官方数据手册。
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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