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.
ERJ3EKF4873V是松下电子推出的0603封装厚膜电阻,属于小型化、高精度电阻系列,主要面向对体积、精度有明确要求的电子电路设计场景。其型号标识清晰对应核心参数:
核心阻值为487kΩ,精度等级±1%,满足工业级、消费电子等场景对电阻精度的基本要求,可稳定应用于电压分压、电流采样等需要准确阻值输出的电路。
采用0603封装(英制,对应公制1608),具体尺寸为1.6mm(长)×0.8mm(宽)×0.45mm(厚),重量约0.005g,适合高密度PCB布局,可有效节省电路板空间。
该电阻因体积小、精度稳定、宽温适应性强,广泛应用于以下领域:
松下厚膜电阻制造工艺成熟,产品一致性好,批量生产时阻值偏差控制严格;符合RoHS、REACH等环保标准,满足全球市场合规要求。
相比薄膜电阻成本更低,功率密度适中;相比碳膜电阻温度特性更优(TCR仅±100ppm/℃),适合中高端电子设备批量应用。
0603封装支持自动化SMT贴装,焊接效率高,可与主流生产线兼容,降低生产制造成本。
ERJ3EKF4873V凭借高精度、宽温范围、小型化等优势,可满足多领域电子设备的设计需求,是中高端电路设计的可靠选择。
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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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