Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LM7912T 是一款固定输出的线性负电压稳压器,输出额定约 -12V,适用于要求稳定负电源的小功率到中等功率场合。器件提供过流保护与过热保护,工作可靠,封装为常见的 TO-220-3,便于安装散热与电路集成。
TO-220-3 封装利于直接安装散热片;在 1A 输出或较高差分电压时必须加装散热片或设计良好散热路径。为保证长期稳定运行,建议根据 Pd 估算所需散热阻并留足安全裕量。
总结:LM7912T(HGSEMI)以简单可靠的固定 -12V 输出、内置保护与通用 TO-220 封装,适合需要稳定负电源且对成本与可靠性有要求的多种应用场景。选型与设计时请参照华冠提供的完整数据手册,以获得准确的电气特性与应用指南。
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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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