Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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ERJ2RKF1200X是松下(PANASONIC)推出的通用型厚膜贴片电阻,型号编码明确传递了核心属性:
固定阻值120Ω,精度±1%——满足模拟信号处理、分压电路等对阻值准确性要求较高的场景,避免因阻值偏差导致信号失真或功率损耗异常。例如,在5V电源分压电路中,120Ω电阻可稳定输出4.95~5.05V的分压值,保障后级电路正常工作。
100mW(0.1W)——在常规低功耗电路中可稳定运行,最大允许电流约9.1mA(公式:(I=\sqrt{P/R}=\sqrt{0.1/120}\approx0.0091A)),适配手机、耳机等便携设备的常见电流范围。
±100ppm/℃——表示温度每变化1℃,阻值变化百万分之一百。在-55℃~+155℃的宽温范围内,阻值最大波动为±2.1%((100ppm/℃×210℃)),结合±1%初始精度,实际阻值仍处于电路可接受的误差区间,确保极端温度下性能稳定。
-55℃~+155℃——支持汽车发动机舱(120℃以上)、工业户外设备(-40℃以下)等极端场景,无需额外散热设计即可长期可靠运行。
采用0402封装(英制:0.04″×0.02″;公制:1.0mm×0.5mm×0.35mm),是当前贴片电阻中尺寸极小的封装之一,核心优势:
因体积小、精度高、宽温适配,该电阻广泛应用于:
松下厚膜工艺及品质管控确保产品长期稳定:
ERJ2RKF1200X以其“小体积、高精度、宽温可靠”的特点,成为消费电子、汽车电子等领域的主流贴片电阻选型之一,可有效降低电路设计复杂度,提升产品小型化程度。
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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.
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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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