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.
LM393M/TR 是华冠(HGSEMI)推出的一款双路比较器,封装为 SOP-8,适用于各种电平检测与转换场合。器件采用开漏输出结构,输出与 TTL/CMOS 兼容,便于与微控制器、逻辑电路及外部晶体管直接接口。器件可在单电源或双电源供电下工作,具有低静态功耗与稳定的输入特性,适合电池供电与工业控制应用。
LM393M 标准 SOP-8 引脚排列包括两个比较器的输入、输出、基准与电源引脚。由于输出为开漏结构,输出端必须外接上拉电阻到合适的电源电平(例如 VCC 或逻辑电平),推荐常用值 4.7kΩ ~ 100kΩ,典型 4.7kΩ–10kΩ,可根据速度与功耗要求调整。
如需原理图参考、典型参数曲线或器件明细(订购编码、包装方式),可提供进一步资料以便针对具体应用给出优化建议。
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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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