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.
UMW(友台)TL431 是一款输出可调、精度高、低静态电流的精密分流稳压器,封装为 SOT-23,适合开关电源反馈、线性基准、精密比较与电池管理等场景。其基准电压起始点为 2.495V,可在 2.495V ~ 36V 范围内输出可调电压,输出电流最高可达 100mA。
TL431 本质为可调精密参考源与误差放大器,外接两只分压电阻 R1(上)与 R2(下)即可设定输出电压:Vout ≈ Vref × (1 + R1/R2) + Iref×R1(Vref ≈ 2.495V)。设计时需注意:
总结:UMW TL431 以其高精度(±0.5%)、低温漂(50 ppm/℃)和超低静态电流(1.8 μA)在众多精密参考与控制场合表现优异。设计时重点关注最低工作电流、功耗计算与电路稳定性即可发挥其最佳性能。
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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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