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
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ERJ2RKF2742X是松下(PANASONIC)推出的一款通用型厚膜贴片电阻,属于其经典ERJ系列,专为高密度电路设计打造,兼顾性能、成本与可靠性,适用于多类电子设备的信号调理、分压限流等基础电路场景。
该电阻属于0402封装(公制1005)厚膜贴片电阻,定位于工业级常规精度(±1%)、小功率(100mW)应用,核心参数清晰对应阻值27.4kΩ,温度系数±100ppm/℃,工作温度覆盖-55℃~+155℃,是松下针对中小功率电路推出的高性价比元件,广泛用于消费电子、工业控制等领域。
阻值为27.4kΩ,采用贴片电阻标准数字编码(2742)表示——前两位“27”为有效数字,第三位“4”为倍率(10²),即274×10²=27400Ω=27.4kΩ。精度±1%属于工业级主流精度,满足多数电路对阻值偏差的要求,无需额外高精度成本,平衡性能与成本。
封装尺寸约为1.0mm×0.5mm×0.5mm(长×宽×高),体积小、重量轻,适合高密度PCB布局(如智能手机主板、可穿戴设备),可有效减少电路空间占用。
采用厚膜丝网印刷+高温烧结工艺,在氧化铝陶瓷基底上形成电阻膜,相比薄膜电阻成本更低,且耐过流能力更强;端电极采用松下专利的多层结构(银/镍/锡),确保焊接可靠性,同时符合RoHS无铅环保要求,可直接用于绿色电子产品生产。
松下作为全球电子元器件龙头厂商,ERJ系列电阻经过严格的全流程质量管控:
综上,ERJ2RKF2742X是一款性能均衡、性价比突出的通用厚膜贴片电阻,可广泛适配多类电子设备的基础电路设计。
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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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